S and P Flex Separation

Operating instructions
Printed 09-2013
Book No. 584612-02, rev. 7
Published By:
Alfa Laval Tumba AB
SE-147 80 Tumba, Sweden

Telephone: +46 8 530 650 00

Telefax: +46 8 530 310 40

© Alfa Laval Tumba AB 09-2013

The original instructions are in English
This publication or any part there of may not be
reproduced or transmitted by any process or
means without prior written permission of Alfa
Laval Tumba AB.
Contents
1 Operating 5
1.1 Before First Startup 5
1.2 Control Panel 8
1.3 Manual Start from Standstill 10
1.4 Automatic Start from Standstill 18
1.5 During Separation 19
1.6 Stop 22
1.7 Emergency Stop 24
1.8 After Emergency Stop 25
1.9 Separator Emergency Operation 27
1.10 Cleaning In Place 28
1.10.1 CIP Start 28
1.10.2 CIP Running 30
1.10.3 CIP Stop 31

1.11 Check if separator bowl is clogged 32

1.12 Intervals Between Sludge Discharges 33
1.12.1 Background 33
1.12.2 Recommended intervals between sludge
discharges 33
1.12.3 Fuel oil cleaning 34
1.12.4 Lubricating oil cleaning 34
1.12.5 Bowl inspection 36

1.13 Heater Control (optional) 37

1.13.1 Control of the electric heater (optional) 39
1.13.2 Control of the CBM heater (optional) 40
1.13.3 If heater not controlled or external 41
1.13.4 Heater shut down 41

1.14 Cross connection/serial operation 42

1.14.1 Set up communication 42
1.14.2 Configure parameters 42
1.14.3 Cross connection 43
1.14.4 Serial operation 43

1.15 Programmable Inputs and Outputs 44

1.15.1 Inputs 44
1.15.2 Outputs 44

1.16 I/O Test Function 46

1.17 Operation without all sensors
(Emergency operation) 50

3
 1.17.1 System Without Speed Sensor 50
1.17.2 System Without Vibration Sensor 50
1.17.3 System Without Cover Switch 50
1.17.4 System With PT1 Disabled 51
1.17.5 System With PT4 Disabled 51
1.17.6 System With PT5 Disabled (S-separator only) 51
1.17.7 System With TT1/TT2 Disabled 51
1.17.8 Control of Sludge Pump, Level in Sludge Tank, and
Butterfly Valve 52
1.17.9 System Without Feed Pump 53
1.17.10 System Without Water Transducer (S-separator
only) 54
1.17.11 Purifier Operation (only valid for S 805 and S 815) 55

4
 1 Operating

1.1 Before First Startup

The Control Panel must be configured to suit
the system components.

1. Check that the separator is correctly assembled

and connected to power supply of correct
voltage and frequency. The control panel must
be ON.

NG
WARNI
!
Breakdown hazard
Assemble the separator completely before start. All
couplings, covers and guards must be in place and
properly tightened. Failure to do so may lead to
breakdown.
X024761A

NG
WARNI
!
Electrical hazard
Follow local regulations for electrical installation and
earthing (grounding).

NOTE

Check that the Emergency Stop Box is properly

installed and functioning correctly.

NG
WARNI 50 Hz?
!
60 Hz?
Breakdown hazard
Check that the power frequency is in agreement with
the machine plate. If incorrect, resulting overspeed
may cause breakdown. P003606B

5
1.1 Before First Startup 1 Operating

NG
WARNI
!
Use the separation system for the purpose, and within
the limits, specified by Alfa Laval. Failure to do so
could cause a violent breakdown.

2. Check the oil sump level. If necessary, top up

until oil starts to run from the oil-filling hole.

NOTE

Too much or too little oil can damage the separator

bearings.

X024762A

Rotation Direction
Check the rotation of the bowl using the I/O test
function. See 1.16 I/O Test Function on page
46. The motor fan must rotate in a clockwise
direction.

ON
CAUTI
!
If power cable polarity has been reversed, the
separator will rotate in reverse, and vital rotating parts
can loosen.
X023719B

Operating Air Pressure

Check that the air supply is correct (500 – 800
kPa or 5 – 8 Bar).

6
1 Operating 1.1 Before First Startup

Operating Water Pressure

Check that the operating water pressure is
sufficient (200 – 800 kPa or 2 – 8 Bar).

NOTE

The LEDs on the water block and connectors indicate

that the valve has power on. They do not indicate if the
valve is clogged (an alarm is given if this is the case).

Emergency Stop Push Box

Check that the Emergency Stop Box is located
close to the separator system and electrically
connected to the Control Panel

NOTE

If the Emergency Stop Box is not connected, the

system will not start.

7
1.2 Control Panel 1 Operating

1.2 Control Panel

To start the Control Panel, switch on the main
power switch on the control cabinet.

General
The Control Panel has three main lists.

• Operation
• Alarms
• Setting

Operation List
To access the Operation List at any time during
the operation process press the ‘Return button’
repeatedly until the Operation List is reached. 7 8 9

The list gives information on the following where 4 5 6

installed: 1 2 3

. 0
• Feed Flow
• Time to discharge, min REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
• Speed (SS), rpm FEED
PUMP
SLUDGE
PUMP
CLEANING
IN PLACE

• Pressure (PT1, PT4, PT5)

X023912A

• Temperature (TT1, TT2)

• Vibration (VIB)
• Transducer value

Press the arrow buttons to go up or down in

the list.
7 8 9

4 5 6
NOTE
1 2 3
During operation, the ‘Operation’ list is active on the
. 0
display. The present stage of operation, for example
‘SEPARATION’, shows on display together with REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

operating information such as present temperature.

CIP
Press the downward ‘Arrow’ button to go down the list. FEED
PUMP
SLUDGE
PUMP
CLEANING
IN PLACE

X023914A

For further information regarding alarms, see

the Alarms and Fault Finding booklet.

For further information regarding parameters,

see the Parameter List booklet

8
1 Operating 1.2 Control Panel

At any time during operation, the operator can

initiate a STOP sequence by pressing the ‘Stop’
button. 7 8 9

4 5 6

1 2 3

. 0

REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
FEED SLUDGE CLEANING
PUMP PUMP IN PLACE

X023920A

NOTE

If control panel black screen appear.

See “Alarms & Fault finding” manual.

9
1.3 Manual Start from Standstill 1 Operating

1.3 Manual Start from Standstill

Press the ‘Start’ button. The operator can
select to start the system manually by setting
parameter P130 to ‘stepwise’. 7 8 9

4 5 6

NOTE 1 2 3

. 0
First start-up is always manual and not dependant on
P130 setting. REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

A rotation test must be carried out using the I/O test CIP
FEED CLEANING
function prior to first start-up. PUMP
SLUDGE
PUMP IN PLACE

NOTE

First start-up after power off should always be carried

out manually!

NOTE

If a butterfly valve is installed, it must be opened

manually before that the system can start.
X023911A

ON
CAUTI
!
If power cable polarity has been reversed, the
separator will rotate in reverse, and vital rotating parts
can loosen.

If speed sensor, vibration sensor, and frame

cover switch are installed (P113, P114, and
P115 = yes), the operator can select to start the
system automatically by setting parameter P130
to ‘automatic’.

10
1 Operating 1.3 Manual Start from Standstill

If the power has been off and/or the separator

bowl cover has been removed a number of
questions which have to be answered before the
system can be started are shown on the display:

‘Has the bowl been dismantled? YES, NO’

(S-type separator only)
7 8 9
Use the ‘arrow’ buttons to move to the alternative
you want. 4 5 6

1 2 3

. 0

REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
FEED SLUDGE CLEANING
PUMP PUMP IN PLACE

X023914A

When the alternative you want is blinking, press

the ‘Enter’ button.
1. If the bowl has been dismantled choose ‘YES’
Manual start only is possible.
If no work has been carried out on the bowl, 7 8 9
choose ‘NO’.
For S-type separators ‘Proceed without 4 5 6
calibration’ appears on the display. 1 2 3
Stepwise/automatic start is possible (set
. 0
using parameter P 130).
For P-type separators the system then goes to REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

Standstill. CIP
FEED SLUDGE CLEANING
PUMP PUMP IN PLACE

NOTE X023913A

If this is the first start, answer ‘YES’.

‘Assembled according to manual? YES, NO’

2. If the bowl has been dismantled and assembled

according to the instructions in the Service
Manual, choose ‘YES’.
(If ‘NO’ is chosen, the system goes to
‘STANDSTILL’).

‘Bowl cleaned? YES, NO’

(S-type separator only)

3. If the bowl has been cleaned choose ‘YES’.

‘Proceed with calibration’ appears on the
display. Local manual start only possible.
If the bowl has not been cleaned, choose ‘NO’.
‘Proceed without calibration’ appears on the
display. Stepwise/automatic start is possible
(set using parameter P 130).

11
1.3 Manual Start from Standstill 1 Operating

Start
1. The feed pump (if installed) starts.

The LED on the start button flashes, the LED 7 8 9

for the feed pump lights, and text ‘Starting feed
pump’ shows on the display. 4 5 6

1 2 3
The start button LED shines steadily and the
display shows either ‘To start heater, press start . 0
button’, or ‘To start separator, press start button’. REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
FEED SLUDGE CLEANING
PUMP PUMP IN PLACE

X023911A

12
1 Operating 1.3 Manual Start from Standstill

2. Press the start button a second time.

The heater (if installed) starts. 7 8 9

The LED on the start button flashes, the LED 4 5 6

for the heater lights, and text “Starting heater” 1 2 3
shows on the display.
. 0
Wait for increasing temperature. REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
Cold Start Function FEED
PUMP
SLUDGE
PUMP
CLEANING
IN PLACE

If the viscosity of the oil is high (low temperature),

a smooth heater start-up is preferred. The
temperature up to which the cold-start gain
factor P126 is active is set in parameter P125.
Above this temperature the normal P-constant
P123 is used.

If the temperature has not reached the value

in parameters P184 (HFO/LO low temperature
limit) within the time specified in parameter
P169 (alarm delay), alarm ‘A24 Temperature
increase too slow’ will show on the display. X023911A

If the temperature feedback is correct (reading

on temperature sensor TT1 above value
in parameter P184), the start button LED
shines steadily and the display shows ‘To start
separator, press start button’.

13
1.3 Manual Start from Standstill 1 Operating

3. Press the start button a third time.

The separator motor starts. 7 8 9

The LED on the start button flashes, the LED for 4 5 6

the separator lights, and text ‘Starting separator’ 1 2 3
shows on the display.
. 0
Wait for speed feedback (if speed sensor REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

installed), or until the separator max. start time

CIP
(4 minutes) has elapsed. FEED
PUMP
SLUDGE
PUMP
CLEANING
IN PLACE

If the speed has not increased to over 90 rpm

within 10 seconds after contactor K2 response,
alarm ‘A96 Slow start acceleration’ shows on
the display.

If the low speed limit value in parameter P180

has not been reached before the separator max.
start time has elapsed, alarm ‘A95 Separator
motor run-up time too long’ shows on the
display.

If the separator is running above the low X023911A

speed limit, the start button LED shines

steadily, and the display shows the heading
‘RECIRCULATION’ and text ‘To start separation,
press start button’.

14
1 Operating 1.3 Manual Start from Standstill

4. Press the start button a fourth time.

If the feed temperature is below the value in 7 8 9

P184, the controller stays in RECIRCULATION
mode. The LED on the start button flashes, and 4 5 6
text ‘Waiting in RECIRCULATION for separation 1 2 3
temperature’ shows on the display.
. 0
If the correct feed temperature is reached, REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

the controller changes automatically to

CIP
SEPARATION mode via a transition sequence FEED
PUMP
SLUDGE
PUMP
CLEANING
IN PLACE

which is shown on the display. The start button

LED shines steadily, and the display shows the
heading ‘TRANSITION’.

If speed sensor not installed (P113 = no)

or disabled (P148 = 0), change over to
RECIRCULATION/SEPARATION takes place
when the separator max. start time has elapsed.

NOTE

The time in ‘RECIRCULATION’ is limited by timer P178 X023911A

to avoid overheating of the separator.

15
1.3 Manual Start from Standstill 1 Operating

Start S-type separator start sequence

START
command

Has the bowl been No

dismantled?
Yes
Assembled according No
to manual? STANDSTILL

Yes
Bowl cleaned? No Proceed without calibration *
local or remote **, auto ** or stepwise
start possible
Yes
Proceed with
calibration * Change to
local stepwise SEPARATION
start only
Change to
SEPARATION
Transition * consists of: Transition *
Start discharge (step 4) consists of:
Displacement (step 1) Calibration Discharge (step 2)
discharge (step 5) Discharge with P244 instead of
(step 2) with P244 instead of P231
P231 Bowl leak/water transd. Bowl leak/water
test (step 3) transd. test (step 3)

SEPARATION

16
1 Operating 1.3 Manual Start from Standstill

Start P-type separator start sequence

START
command

Assembled according to No
STANDSTILL
manual?
Yes
Proceed with start sequence
local start only

17
1.4 Automatic Start from Standstill 1 Operating

1.4 Automatic Start from Standstill

The operator can select to start the system
automatically by setting parameter P130 to
‘automatic’.

The control panel automatically goes through

the same procedure as described under Manual
Start from Standstill.

If the bowl has not been dismantled or cleaned,

the previously calculated filling time (parameter
P233) is used, a discharge sequence and a
bowl leakage/water transducer test are run, and
the system goes into SEPARATION mode.

The following equipment must be installed for

automatic start:

• Vibration monitor
• Speed sensor
• Frame cover switch

18
1 Operating 1.5 During Separation

1.5 During Separation

Observe information on the control panel
display. The times in each sequence are shown
in the bottom left-hand corner of the display

NG
WARNI
!
Breakdown hazard
If strong vibration occurs, press the emergency stop
button and evacuate the room.
Never discharge a vibrating separator. Vibration may P003606A

then become violent and result in breakdown.

NG
WARNI
!
Noise hazard
Use ear protection if noise levels are high.

NG
WARNI
!
Breakdown hazard
Never reset an alarm without first finding and
remedying the cause.

ON
CAUTI
!
Burn hazard
Avoid contact with hot surfaces. Process pipes,
X023716A
various machine surfaces, and processed liquid can
be hot and cause burns.

ON
CAUTI
!
Slip hazard
Check all connections for leakage.
Oil leakage may make the floor slippery.

19
1.5 During Separation 1 Operating

Discharge sequences run automatically at

preset intervals (timer P220).

Discharge sequence can also be run manually

by pressing the ‘Discharge’ button.
7 8 9

4 5 6

1 2 3

. 0

REMOTE

i
HEATER SEPARATOR CONTROL

CIP
FEED CLEANING
PUMP IN PLACE

X023923A

20
1 Operating 1.5 During Separation

The Sludge Pump runs during discharge or

when there is high level in the sludge tank, or
can be started manually by pressing the ‘Sludge 7 8 9
Pump’ button on the control panel.
4 5 6

1 2 3
NOTE . 0

Do not run the sludge pump longer than necessary. If REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

the pump is run while dry it can be damaged. CIP

FEED CLEANING
PUMP IN PLACE

X023922A

In SEPARATION mode, the feed pump is

running, the feed has reached separation
temperature (the heater is working) and the
separator is running at full speed.

Feed valve V1 is open to the separator inlet.

21
1.6 Stop 1 Operating

1.6 Stop

ON
CAUTI
!
Breakdown hazard
Stop the separator by means of the control unit, and
not by turning off the power.

ON
CAUTI
!
Never attempt to clean the bowl by manual discharge
in connection with stop.

To stop the system:

The operator can stop the system when in the

‘START’, RECIRCULATION’, or ‘SEPARATION’
modes.

1. Stop the system by pushing the ‘Stop’ button

on the control panel. The following sequence
takes place: 7 8 9

• A stop discharge and flushing sequence are 4 5 6

initiated (does not apply to stop from ‘START’). 1 2 3

. 0
NOTE
REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

Filling and flushing are not performed if the discharge CIP

FEED SLUDGE CLEANING
feedback has not been received PUMP PUMP IN PLACE

X023920A

22
1 Operating 1.6 Stop

• The separator motor is turned off and the stop

timer starts running. At the same time, the
heater is turned off (see 1.13.4 Heater shut
down on page 41. The system waits for the feed
temperature and speed to decrease.
• If the speed limit in P180 (low speed limit) is
not reached within 3 minutes, alarm ‘A94 Bowl
speed high during STOP’ is given.
• When the bowl speed has reached 4000 rpm,
closing water valve SV16 is activated for 1
second in order to keep the bowl closed.
• If speed sensor not installed (P113 = no) or
disabled (P148 = 0), SV16 opens for 1 second
5 minutes after the separator motor has been
turned off.
• When 3 minutes has elapsed, the feed pump
is turned off.
• The system waits for the speed sensor (if
installed) to indicate zero speed. When the bowl
has been still for 60 seconds, ‘STAND STILL’
shows on the display.
• If speed sensor not installed (P113 = no) or
disabled (P148 = 0), ‘STAND STILL’ is shown
when the stop timer has elapsed.
• The sludge pump runs for 10 seconds after
STAND STILL is reached if stopped from
SEPARATION mode or RECIRCULATION
mode.
• All equipment except the sludge pump (which
can still be run manually) is now deactivated.

NOTE

If the system is switched off, it can in most cases be

switched on again without waiting for the separator to
slow down. See 1.3 Manual Start from Standstill
on page 10, and the Alarms and Fault Finding
booklet.

NG
WARNI
!
Breakdown hazard
The system must not be restarted with the separator
rotating if high vibration alarm has been given.

23
1.7 Emergency Stop 1 Operating

1.7 Emergency Stop

NG
WARNI
!
Disintegration hazard
If an emergency situation or unusually strong vibration
occurs, press the Emergency Stop button and
evacuate the room.
X024579A
If oil spray, feed pump is stopped by emergency stop
button.
Do not enter the room after an emergency stop while
the separator is still rotating.

The following sequence occurs:

• The power to heater pump and separator motor

is shut-down immediately.
• Stop timer starts.
• If a steam heater is installed, the steam shutoff
valve is forced to close.
• Closing water valve SV16 opens for 15 seconds.
SV10 is open for 15 seconds if the speed is
supervised and the speed is over P255, or if
there is no speed supervision.
• All other equipment is deactivated.

NOTE

In order to be able to restart, the system must be at

standstill.

24
1 Operating 1.8 After Emergency Stop

1.8 After Emergency Stop

Separator standstill
Dismantling work must not be started before
all rotating parts have come to a complete
standstill.

NG
WARNI
!
Entrapment hazard
Make sure that rotating parts have come to a complete
standstill before starting any dismantling work.
The rotation indicator lamp, where applicable, must
be off. I00293CD

Avoid accidental start

NG
WARNI
!
Entrapment hazard
To avoid accidental start, switch off and lock power
supply before starting any dismantling work.
Make sure that separator has come to a complete
standstill before starting any dismantling work.

Remedy the cause

The cause of the emergency must be remedied
before attempting to restart the separator.
If the cause is not found, an overhaul must be
performed on the separator, and all moving
parts thoroughly checked.

NG
WARNI
!
Disintegration hazard
Do not start the separator after an emergency stop
without first remedying the cause of the emergency.
Make sure that the bowl is clean before restart.

25
1.8 After Emergency Stop 1 Operating

Separator reassembled
The separator must be fully reassembled with
all covers and guards in place and tightened
before unlocking the power supply and starting
the system.

NG
WARNI
!
Breakdown hazard
Assemble the separator completely before restart.
All couplings, covers, and guards must be in place
and properly tightened. Failure to do so may lead to X023714B

breakdown.

NOTE

Check that the Emergency Stop Box is properly

installed and functioning correctly.

NOTE

Check that all ancillary equipment, in particular the

heater, is functioning correctly.

26
1 Operating 1.9 Separator Emergency Operation

1.9 Separator Emergency Operation

If the Control System has a total failure, the
Separator and Feed Pump can be run manually.
Jumpers or pushbuttons can be connected
between terminals X1:113 - 114 (for separator)
and X1:115 - 116 (for feed pump).
Separator and Feed Pump will start immediately
when these terminals are bridged, but can be
stopped with the Emergency Stop pushbutton.

NOTE

- No supervision of the separator is performed, as the

Control System is deactivated.
- The system must be manually supervised by trained
operator when running.
- All actions must be performed by trained operator,
such as closing bowl, discharge, sludge pump running
and it is done on the manual actuators on the valves.

27
1.10 Cleaning In Place 1 Operating

1.10 Cleaning In Place

The use of Cleaning In Place (CIP) equipment
is recommended for best separation results. For
further information on the CIP equipment, see
the CIP booklet, bookno. 1817261.

1.10.1 CIP Start

CIP can be selected from STAND STILL only,
and only from a local control panel.
7 8 9
Press the CIP button to select CIP.
4 5 6

1 2 3
NOTE
. 0
During CIP the separator is running at full speed, but REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

feed pump, heater, process valves, temperature and

CIP
pressure supervision and water transducer MT60 are FEED
PUMP
SLUDGE
PUMP

neither controlled nor supervised.

ON
CAUTI
!
Avoid accidental start of feed pump
To avoid accidental start, switch off and lock power
supply for feed pump.
Leakage of Hot oil may occur if feed pump is
accidentally started.

X023921A

28
1 Operating 1.10 Cleaning In Place

Connect hoses for CIP liquid before pressing

“start” button.
7 8 9
With CIP selected from STAND STILL, press
the ‘START’ button to start the separator motor. 4 5 6
The motor starts unless the system prevents 1 2 3
start, or alarms are active.
. 0
Wait for speed feedback. REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
• Speed has to increase to above 90 rpm within FEED
PUMP
SLUDGE
PUMP
CLEANING
IN PLACE

10 seconds after contactor K2 response,

otherwise alarm ‘A96 Slow start acceleration’
will be shown on the display.
• Speed limit in parameter P180 has to be
reached within 4 minutes, otherwise alarm ‘A95
Separator motor run-up time too long’ will be
shown on the display.
• When the separator is running above low speed
limit (P180), or 4 minutes has elapsed if speed
sensor not installed (P113 = no) or disabled
(P148 = 0), a message to start the cleaning
liquid supply is given to the operator. X023911A

29
1.10 Cleaning In Place 1 Operating

1.10.2 CIP Running

NOTE

When the bowl has reached normal speed, a bowl

closing procedure will be performed.

While the CIP system is running, closing water

valve SV16 opens for 2 seconds and closes for
the time set in parameter P228 (pulse interval) 7 8 9
repeatedly. The sludge pump runs when there 4 5 6
is high level in the sludge tank or when activated
1 2 3
by pressing the ‘SLUDGE PUMP’ button on the
control panel. . 0

REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

CIP
FEED CLEANING
PUMP IN PLACE

X023922A

A discharge can be activated manually during

the CIP process by pressing the ‘DISCHARGE’
button on the control panel. 7 8 9

4 5 6

1 2 3

. 0

REMOTE

i
HEATER SEPARATOR CONTROL

CIP
FEED CLEANING
PUMP IN PLACE

X023923A

30
1 Operating 1.10 Cleaning In Place

1.10.3 CIP Stop

Stop the CIP process by pressing the ‘Stop’
button on the control panel. The CIP process
can be restarted. 7 8 9

• The separator motor is turned off. Alarm delay 4 5 6

(3 minutes) starts, and stop timer starts. If the 1 2 3
speed limit in parameter P180 (alarm limit bowl
. 0
speed low) is not reached within 3 minutes,
alarm ‘A9 Bowl speed high during STOP’ is REMOTE

i
HEATER DISCHARGE
SEPARATOR CONTROL

given.
CIP
FEED SLUDGE CLEANING
PUMP

• When the bowl speed has reached 4000 rpm, PUMP IN PLACE

closing water valve SV16 is activated for 1

second in order to keep the bowl closed.
• If there is no speed sensor installed (parameter
P113 = no) or disabled (parameter P148 = 0),
SV16 opens for 1 second 5 minutes after the
separator motor has been turned off.
• The system waits for the speed sensor (if
installed) to indicate zero speed. When the bowl
has been still for 60 seconds, ‘STAND STILL’
shows on the display.
• If there is no speed sensor installed (parameter
P113 = no) or if speed sensor disabled
(parameter P148 = 0), ‘STAND STILL’ is shown X023920A

when stop timer has elapsed.

• If the bowl speed has been above P180, or the
start timer has elapsed, the sludge pump runs
for 10 seconds after ‘STANDSTILL’.
• Hold the ‘CIP’ button pressed for 5 seconds to
leave CIP mode.

After cleaning:
1. Open the heater drain valve until the flushing
water has drained.

2. Close the drain valve.

3. Remove the CIP connections.

4. Return the turnable connections to their former

positions and re-tighten.

5. Re-open the valves before and after the heater.

ON
CAUTI
!
Health Risk
Do not forget to disconnect the CIP equipment and
re-connect the process connections.

31
1.11 Check if separator bowl is clogged 1 Operating

1.11 Check if separator bowl is clogged

Valid for Purifiers (not Alcap or Clarifiers)
Purifiers have no automatic indication if the bowl
is clogged or filled with too much solids.
Recommendation is to check each Bunker
analyze report and determine if there is any risk
for a higher than normal sludge production.
The time between each sludge discharge should
then be reduced accordingly.

From time to time , and especially when a new

Bunker is introduced ,it is advisable to do as
follows :

- Introduce water into the bowl by open manually

the SV10 solenoid valve , on the Operating
Water Block.
- Check that this water is coming out from the
bowl by unscrewing the Inspection Plug on the
sludge pipe.
Please however ,make sure that the machine is
not about to make a discharge! Splash hazard.

X027007A

If water is seen flowing in the pipe, turn off SV10

and keep operating as before.
The bowl is not clogged.

If no water is seen , then the bowl is clogged.

Make a discharge.
If still the water is not seen in the Inspection
plug ,turn off SV 10 and shut down the Purifier
system.
Open and clean up the bowl.

NOTE

By opening the Inspection Plug without adding any

water , it can also be verified that no small oil leakage
is escaping from the bowl during operation.

32
1 Operating 1.12 Intervals Between Sludge Discharges

1.12 Intervals Between Sludge Discharges

(Valid for P 625/635/626/636 only)

1.12.1 Background

NG
WARNI
!
Disintegration hazard
Experience has shown that if intervals between
sludge discharges are too long, a compact and hard
sludge cake can accumulate. On discharge, this cake
may break up and be discharged unevenly causing
imbalance in the bowl. If imbalance is excessive,
there is risk for serious mechanical damage and injury
to personnel.

Recommendations are given regarding initial

intervals between sludge discharges for different
applications. The setting may subsequently
have to be changed after actual inspection of
the bowl.

1.12.2 Recommended intervals between sludge

discharges
Many factors influence accumulation and
hardening of sludge between the discharges,
so the appropriate interval depends on local
conditions. However, in order to have a
reasonable starting point the following table
shows recommended initial discharge intervals
and operating times to first inspection.

33
1.12 Intervals Between Sludge Discharges 1 Operating

1.12.3 Fuel oil cleaning

Type of fuel Recommendations
Initial intervals between Time to first bowl inspection
discharges
Distillate (1.5 – 6 cSt/40 °C) 4 hours 1 week
Marine Diesel Oil (max. 14cSt/40 °C) 2 hours 1 week
Heavy Fuel Oil ( Max interval ) 1 hour ( 2 hours ) 2 days

Conditions may change completely when

bunkers are changed. Therefore, great care
must be given to the discharge interval setting
for each new bunker. In case the actually used
discharge interval exceeds the recommended
initial value, the interval setting has to be
reduced, according to the table above, when
a new, unfamiliar bunker is separated. Use of
unstable fuel or mixing of incompatible fuel oils
may give precipitation of sludge and overloading
of the separator.

1.12.4 Lubricating oil cleaning

Continuous operation:
In a new lubricating oil system the oil is initially
clean but as it gets dirtier the interval between
discharges will have to be shortened until a
“steady state” is reached. Following information
refers to systems in “steady state”.

Type of fuel Recommended intervals for Crosshead and Trunk

Initial intervals between Time to first bowl inspection
discharges
Main lubricating oil system 1 - 2 hours 1 week

If separator has been out of operation:

If the separator has been out of service for 24
hours or longer, while the engine has been
running, the interval between discharges has to
be shortened. In this case the recommendation
is:

• Discharge interval 5 minutes until the whole oil

volume has passed twice through the separator.
• After that resume normal discharge interval.

34
1 Operating 1.12 Intervals Between Sludge Discharges

Intermittent operation:
For installations where one separator serves
one engine which is temporarily stopped the
following recommendations apply: If the engine
is to be stopped for 24 hours or less:

• Keep the separator in operation for 8 hours after

the engine is stopped.
• Start the separator 8 hours before the engine is
started again.
Doing so most of the suspended particles and
water condensate will be removed from the
system and not settle in the sump tank. For
installations where one separator serves more
than one engine the following recommendations
apply:

• Continuous use of the separator whenever

possible.
• Frequent switches between the engine systems
to be cleaned. In a typical case with one
separator serving 2–4 auxiliary engines
switching after maximum 24 hours of cleaning.
Discharge interval:
Engine has been in operation with-out Engine has not been in operation since last
cleaning of the system oil cleaning of system oil
Discharge interval 5 min. Normal discharge interval
Duration until the whole oil volume has passed
twice through the separator
After that resume to normal discharge interval

35
1.12 Intervals Between Sludge Discharges 1 Operating

1.12.5 Bowl inspection

To check if the initially selected interval is
appropriate, the bowl should be inspected after
a short test period shown in the previous tables.

If sludge space is clean:

Interval may be prolonged with steps of 15

minutes, but it must not exceed three times the
recommended initial interval.

“Sludge space is clean” means that no

noticeable amount of hard sludge remains in
the sludge space.

If sludge space is dirty:

Interval has to be shortened.

When the bowl is opened for routine cleaning,

the sludge space should always be inspected
and evaluated. If necessary, the interval
between discharges should then be changed
accordingly.

NOTE

Alfa Laval assumes no responsibility for the actual

choice of discharge intervals, as these entirely depend
on local conditions.

36
1 Operating 1.13 Heater Control (optional)

1.13 Heater Control (optional)

The temperature in the feed inlet is normally
supervised via TT1, and can be controlled by
a heater via TT2. Supervision and control are
active even if one of the sensors is disabled.
TT2 can be used by the customer; no alarm is
given. TT2 is disabled in this case.

The heater is controlled according to

temperature setpoint P249 using a PI-regulator
with output:

Y(k) = Y(k+1) + P + l

where the proportional part

P = Kp *(e(k) - e(k-1) )

and integral part

l = Ki * e(k) / Ti

The error e = SetValue - ActualValue, is the

difference between the desired value (P249)
and the actual value (reading on TT) where
k = point of time

The tuning of the regulator is done by modifying

the amplification
Kp = Ki = 100/P123 (P123 is known as the
proportional band width) and integral time Ti =
P124.

Every second a new output Y is calculated, i.e.

the interval between each k is 1s.

With P119 it is possible to select heater control

mode:

• no (no heater controlled)

• electric (electric heater controlled, P120 active)
• steam (steam heater controlled, P121 active)
• external (start/stop request via programmable
output, heater not controlled)
Cold start function
If the viscosity of the oil is high (low
temperature), a faster start-up of the heater
might be favourable (a higher Kp). The
temperature, up to which the cold-start gain
factor P126 is active, is set in P125. Above this
temperature the normal P-band P123 is used.

37
1.13 Heater Control (optional) 1 Operating

Example: P123 = 30, P126 = 40 results in

a P-band of 0.40 x 30 = 12 as long as the
temperature is below P125.

38
1 Operating 1.13 Heater Control (optional)

1.13.1 Control of the electric heater (optional)

P119 = electric. The following parameters
should not be displayed in the parameter list:
P121, P122.

Five outputs and one input are used to control

the electric heater:

• three relay outputs to up to three fixed power

steps depending on the heater size (P120)
• one variable load output
• one output "heater on"
• one input "heater fault" (see A05)
The total heater capacity (100%) is the sum of
the power available at the three fixed steps, plus
the power available via the variable load output
(always 16 kW nominal).

This means, if the output signal to the heater is

100%, all available power steps and the variable
load output have to be activated continuously.

Output signal 0% means that all outputs are

deactivated.

If the output signal is a value between 0 and

100%, the activation pattern of the outputs has
to be calculated using the table below.

Output power (in % of the total available power)

Heater size (kW Power step 1 Power step 2 Power step 3 Variable load
nominal, selected % % % output
with P120) %
7, 8 0 0 0 10 x 10
14, 16 0 0 0 10 x 10
22, 24 33,5 0 0 10 x 6,6
36, 40 20 40 0 10 x 4
50, 56 14,3 28,5 28,5 10 x 2,9
65, 72 11 22 45 10 x 2,2
100 14,3 28,5 28,5 10 x 2,9
130 11 22 45 10 x 2,2

For each value of P120 the contribution of each

power step to the total available heater capacity
is given in percent. First use the fixed power
steps to fill the power requirement as far as
possible, then use the variable load output to
fine adjust the output.

39
1.13 Heater Control (optional) 1 Operating

NOTE

It is important that the fixed power steps are working

continuously when activated. Use an established
method e.g. delay drop out.

As a new output signal is calculated every

second, the variable load output is activated for
parts (0.1) of a second.

0.1 s activates 1/10 of the available power on

the output = 1.6 kW.

0.5 s means 8 kW and so on.

Example 1: Heater size 72 kW and output signal

to the heater 50%. Activate step 3 (for 1s) and
activate variable. output for 0.2s.

Example 2: Heater size 16 kW and output signal

to the heater 88%. Activate variable output for
0.9s.

Example 3: Heater size 130 kW and output

signal to heater 88%. Activate steps 1, 2, and
3 (for 1s).

To prevent problems with too heavy momentary

load at start of the heater, only one output
can be activated per second during the first 6
seconds. After that time all outputs can be used
simultaneously.

1.13.2 Control of the CBM heater (optional)

P119 = steam. In this case alarm A05 is not
supervised.

The steam heater is controlled using three relay

outputs:

• increment steam valve

• decrement steam valve
• steam shut-off valve (hold signal)
The position of the valve is not supervised.

The transition time of the steam valve is set in

P121 (time from fully open to fully closed position
and vice versa). The controller function defines
if the valve should be opened (incremented) or
closed(decremented) in relation to its actual
position.

40
1 Operating 1.13 Heater Control (optional)

The signal to the steam valve is pulsed with

an on-time corresponding to the temperature
controller output. Example: output = +50%
means the increment steam valve output is
activated for 0.50 s/s.

When the heater is stopped, the decrement

steam valve signal is on for the time set in P121.
The hold signal is off if the start of the heater is
interlocked (e.g. on alarms A01, A20).

1.13.3 If heater not controlled or external

It is possible to run the system without heater
control (P119 = no).

In this case alarms A05, A24 and A25 are not

supervised.

It is also possible to run the system with external

heater (P119 = external). The ‘heater on’ signal
is given via a programmable output.

In this case alarm A05 is not supervised.

The description for the system with external

heater is also valid if one of the temperature
sensors is disabled or on sensor error
(A22/A30).

1.13.4 Heater shut down

The system waits for the feed temperature to
decrease (5 degrees or below P184). If the
time in P173 has elapsed and the temperature
feedback was not received, alarm ‘A25
Temperature not decreasing’ is given.

When the temperature feedback has been

received, or P173 has elapsed, P256 is started.
When P256 has elapsed, the feed pump (if
running) is turned off. If the feedback signal
from the pump contactor is not received within
5 seconds, alarm ‘A01 Pump starter failure’ is
given.

NOTE

Heater shutdown is also initiated at STOP request

during START if feed pump and heater are on but the
separator is not running.

41
1.14 Cross connection/serial operation 1 Operating

1.14 Cross connection/serial operation

Valid for P-type separators

It might be desirable to cross-connect two

separator modules, or operate them in series.
For that purpose the EPC60:s must be able to
communicate via Ethernet.

1.14.1 Set up communication

The EPC60:s may communicate over any
customer defined network or be connected
directly to each other 1) .

The IP-addresses of the EPC60:s must be set

so there are no IP-conflict since all EPC60:s
are normally delivered with the same default
address, e.g. set one EPC60 to have address
192.168.0.1 and the other to have address
192.168.0.2.
1)Direct connection requires a crossover twisted
pair cable to be used since the EPC60 does not
have automatic MDI/MDI-X configuration.

1.14.2 Configure parameters

The parameter to select desired function is
P145.
The following values are possible:

• disabled (default)
• cross master
• cross slave
• serial master
• serial slave
The adjustment of P145 is only possible, if both
systems are in STAND STILL.

The communication between the two control

systems is supervised. At communication error
an alarm (A136) is given and both systems will
go to STOP if running.

42
1 Operating 1.14 Cross connection/serial operation

1.14.3 Cross connection

One separator module can use the feed pump
and heater of the other one.

• P145 is set to “cross master” in the system

which separator is used. The heater/feed
pump of this system is automatically disabled.
The display shows CROSS CONNECTION
MASTER in STANDSTILL.
• P145 is set to “cross slave” in the system which
heater/feed pump is used. The separator of this
system is automatically disabled. The display
shows CROSS CONNECTION SLAVE.
After adjustment of P145, only stepwise local
start from resp. panel is possible.

The separator is started/stopped and the

separator system is supervised from the master
panel as if heater and feed pump were not
installed. Temperature readings from the master
are transferred to the slave panel.

Heater and feed pump are started/stopped and

controlled from the slave panel. Alarms for the
heater and feed pump are generated in the
slave panel.

1.14.4 Serial operation

This function is required when two separators
should operate in series, i.e. the oil coming from
the first separator (usually a purifier) is further
purified in the second one (usually a clarifier,
but may be a purifier).

• P145 is set to “serial master” in the first system.

The display shows SERIAL CONNECTION
MASTER in STANDSTILL.
• P145 is set to “serial slave” in the second system.
The display shows SERIAL CONNECTION
SLAVE in STAND STILL.
After adjustment of P145, both systems are
started individually. The discharge interval is
set with P220 in the master system. The slave's
automatic discharge initiation is disabled.
Instead the master initiates a discharge in the
slave system every (P262) time after the own
discharge has been completed.

43
1.15 Programmable Inputs and Outputs 1 Operating

1.15 Programmable Inputs and Outputs

An extra I/O kit is available as an option. This kit
contains two boards, one with six programmable
digital inputs and one with six progammable
relay outputs. The customer can select an
optional function for each of these inputs and
outputs from a list of alternatives (see below).

1.15.1 Inputs
See parameters 139 to 144

Alternative Comments
0 None default
1 Remote start enter automatic start, only if REMOTE selected on
operator panel (pushbutton) Closed (pulse) = start
2 Remote stop enter stop sequence, works with REMOTE button in
any position Closed (pulse) = stop
3 Remote start feed pump the same as first push at stepwise start, see
Subsequence start.
Closed (pulse) = start
4 External alarm used for e.g. a level switch in a tank. See alarm
A123.
Closed = alarm
5 Remote recirculation Request Recirculation, only if REMOTE selected on
operator panel (pushbutton) Closed = recirculation

1.15.2 Outputs
See parameters P133 to P138.

altId Alternative Comments

0 None default
1 Indication heater on/ start external program request "heater function on"
heater Closed = heater on
2 Indication separator motor on program request "separator motor on"
Closed = motor on
3 Stand still indication when stand still flag on Closed = stand still
4 Indication alarm A20 if alarm "Oil feed temp. high" active Closed = alarm
5 Indication alarm A21 if alarm "Oil feed temp. low" active Closed = alarm
6 Indication alarm A51 if alarm "Oil backpressure PT4 low" active Closed
= alarm
7 Indication feed pump on program request "feed pump on" Closed = feed
pump on
8 Remote start allowed allowed to start the system Closed = start allowed

44
1 Operating 1.15 Programmable Inputs and Outputs

9 Remote enabled remote button activated Closed = remote activated

10 Valve in sludge outlet controlled if pneumatic valve, see P131 and
Activation diagram Closed = open or close valve
(set with P131)

45
1.16 I/O Test Function 1 Operating

1.16 I/O Test Function

Activity Reference/Limits
If system has active alarms, check and take actions before
starting the I/O test.
Press button F-step backwards and related arrows up ( C ) Acc. to IB(s)
and down ( E ) for Log –in into the I / O test.
Follow the list of I/O‘s (item 25-72) to check status of all el. Acc. to IB(s)
connections of the system including the operating function of
individual components.
OUTPUTS
K2 - Separator motor Valid for:
Check the operation and rotation of the separator motor. All S and P types
The output will only be activated for a short time.
Also check that the correct led is activated on the operating
panel.
If no operation, check jumpers according to electrical diagram.
K3 – Feed pump Optional
Check the operation and rotation of the feed pump. Valid for:
Also check that the correct led is activated on the operating All S and P types
panel.
If no operation, check jumpers according to electrical diagram.
V1 – 3 way valve Valid for:
Verify the operation of the valve, see also that the green diode All S and P types
on the valve connector is lit.
V4 – Oil outlet valve Valid for:
Verify the operation of the valve, see also that the green diode All S and P types
on the valve connector is lit.
Cabinet fan Valid for:
Verify the operation of the fan mounted inside the electrical All S and P types
cabinet.

NG
WARNI
!
Electrocution Hazard
This operation require tests to be made with cabinet
door open and with power on. Beware of live parts.
Steam shutoff valve Optional
Verify the operation of the valve, see also that the green diode Valid for:
on the valve connector is lit. All S and P types
V5 - Drain valve Valid for:
Verify the operation of the valve, see also that the green diode All S and P types
on the valve connector is lit.
Hold/reset vibration switch Optional
Ensure that the vibration switch is reset when this output is Valid for:
activated P605/615
SV10 – Displacement water valve Valid for:
Verify the operation of the valve, see also that the green diode All S and P types
on the valve connector is lit.

46
1 Operating 1.16 I/O Test Function

SV15 Discharge valve Valid for:

Verify the operation of the valve, see also that the green diode All S and P types
on the valve connector is lit.
SV16 – Closing water valve Valid for:
Verify the operation of the valve, see also that the green diode All S and P types
on the valve connector is lit.
Steam decrease – Closing of steam valve Optional
Verify that the valve is moving towards closing position. Note Valid for:
that if the valve is already closed, an opening operation (see All S and P types
below) needs to be done prior to this test.
Steam increase – Opening of steam valve Optional
Verify that the valve is moving towards opening position. Valid for:
All S and P types
Programmable output 1
Not to be tested
Programmable output 2
Not to be tested
Programmable output 3
Not to be tested
Programmable output 4
Not to be tested
Programmable output 5
Not to be tested
Programmable output 6
Not to be tested
Electric heater test Optional
Before the electric heater i/o-test, please ensure that the
electric power to the electric heater cabinet is turned OFF!
The operating voltage for the relays is supplied from control
cabinet.
Elheatvar – Variable output Optional
Check that the diodes on the 2 triacs inside the electric heater Valid for:
cabinet are lit. All S and P types
Heater on signal Optional
Check that the relay KA11 (diode, see picture below) and Valid for:
K11 (mechanical indication) in the electric heater cabinet is All S and P types
activated.
Note, leave this output activated (indicating 1 on display) when
proceeding with the tests of the fixed power steps below!
ElheatPS1 – Power step 1
Check that the relay KA12 (diode, see picture below) and
K12 (mechanical indication) in the electric heater cabinet is
activated. Optional Valid for: All S and P types
ElheatPS2 – Power step 2 Optional
Check that the relay KA13 (diode, see picture below) and Valid for:
K13 (mechanical indication) in the electric heater cabinet is All S and P types
activated.
ElheatPS3 Power step 3 Optional
Check that the relay KA14 (diode, see picture below) and Valid for:
K14 (mechanical indication) in the electric heater cabinet is All S and P types
activated.

47
1.16 I/O Test Function 1 Operating

INPUTS
Heater fault signal Optional
Check that this input is 1 as long as the output “Heater on” is Valid for:
activated. If not ok, check settings of over temperature device All S and P types
Go back to “Heater on” Item no. 47 and deactivate (0 on
display), then go back to this section and verify that “Heater
fault” is 0.
Estop – Emergency stop Valid for:
This input should be 1 when emergency stop button is not All S and P types
pushed.
Press emergency stop button and check that it goes to 0.
Feedback feedpump –
Not to be tested
Feedback separator - Contactor feedback
Not to be tested
Sludge tank level switch Optional
If not installed, check that the input is 1, if not? check if Valid for:
jumper is installed according to electrical diagram. All S and P types
If installed, manually operate the level switch, the input
should be 0 when high level.
Cover switch on separator frame Optional
Manually operate the cover switch, the input should be 1 when Valid for:
switch (and cover) is closed All S and P types
Sludge valve interlock Optional
Manually operate the sludge valve, the input should be 1 when Valid for:
the valve is closed. All S and P types
Programmable input 1
Not to be tested
Programmable input 2
Not to be tested
Programmable input 3
Not to be tested
Programmable input 4
Not to be tested
Programmable input 5
Not to be tested
Programmable input 6
Not to be tested
ANALOGUE INPUTS
PT5 – Water outlet pressure transmitter 4-20mA Input
Check that the indication shows approx 0 bar. Valid for:
Note that if pipes are connected to the system, pressure might All S types
not be 0 bar.
MT – Water transducer, MT60 4-20mA Input
Check that the indication shows 30 pF ±5. Valid for:
Note that this value is only correct when sensor is in air (no All S types
media in pipes).
PT1 – Oil inlet pressure transmitter 4-20mA Input
Check that the indication shows approx 0 bar. Valid for:
Note that if pipes are connected to the system, pressure might All S and P types
not be 0 bar.

48
1 Operating 1.16 I/O Test Function

PT4 – Oil outlet pressure transmitter 4-20mA Input

Check that the indication shows approx 0 bar. Valid for:
Note that if pipes are connected to the system, pressure might All S and P types
not be 0 bar.
TT1 – Oil inlet temperature sensor 1 PT100 input
Check that the indication shows a relevant temperature. Valid for:
All S and P types
TT2 – Oil inlet temperature sensor 2 PT100 input
Check that the indication shows a relevant temperature. Valid for:
Note that the temperature should not deviate from TT1 with All S and P types
more than 2 °C
Speed sensor Namur input
In order to test this input, use the “Separator motor”, K2, sect Optional
1, I/O-test to start the separator (for a few seconds), then go Valid for:
back to this input and check the value, it shall be higher then All S and P625/626, P635/636
0 rpm. types
Vibration switch Optional
Check that this input goes to 0 when the switch is in tripped Valid for:
position P605/615 types
Vibration sensor 4-20mA Input
Check that the indication shows approx 3.5 mm. Optional
(Sensor should be installed with 3.5 mm from the axel) Valid for:
All S and P625/626, P635/636
types

49
1.17 Operation without all sensors (Emergency 1 Operating
operation)

1.17 Operation without all sensors (Emergency operation)

If a sensor is malfunctioning it is possible to
disable it temporarily until it can be fixed or
replaced.

1.17.1 System Without Speed Sensor

It is possible to run the system without speed
sensor (P113 = no).

In this case system control and supervision are

much more basic.

Alarms A90 – A97 are not supervised.

Remote start is not allowed.

The separator is started within 4 minutes and

stopped with stop timer.

This also applies if the speed sensor is disabled

(P148 = 0) or on alarm ‘A92, Bowl speed sensor
error’.

1.17.2 System Without Vibration Sensor

It is possible to run the system without vibration
sensor (P114 = no).

In this case alarms A100 – A103 are not

supervised.

Remote start is not allowed.

This also applies if the vibration sensor is

disabled (P132 = yes) or on alarm ‘A102,
Vibration sensor error’

1.17.3 System Without Cover Switch

It is possible to run the system without cover
switch (P115 = no).

In this case alarms A110 – A111 are not

supervised.

Remote start is not allowed.

This also applies if the cover switch is disabled

(P116 = yes).

50
1 Operating 1.17 Operation without all sensors
(Emergency operation)

1.17.4 System With PT1 Disabled

It is possible to run the system with PT1 disabled
(P157 = 0).

In this case alarms A40 – A42 and A44 are not

supervised.

This also applies on alarm ‘A42, Feed pressure

sensor PT1 error’.

1.17.5 System With PT4 Disabled

It is possible to run the system with PT4 disabled
(P153 = 0).

In this case alarms A50 – A52 and A54 – A59

are not supervised.

As a result, calibration of the water flow is

not possible. The old values are used for
displacement and conditioning water. Cold
start function is disabled. Bowl leakage test is
disabled.

This also applies on alarm ‘A52, Oil pressure

sensor PT4 error’.

1.17.6 System With PT5 Disabled (S-separator

only)
It is possible to run the system with PT5 disabled
(P155 = 0).

In this case alarms A70 – A72 and A74 are not

supervised.

This also applies on alarm ‘A72, Water pressure

sensor PT5 error’.

1.17.7 System With TT1/TT2 Disabled

It is possible to disable one of the temperature
sensors TT1 or TT2 with parameter P146.
The readings normally taken from the disabled
sensor is then replaced with the readings from
the other sensor in all sequences.

When a temperature transmitter is disabled the

corresponding sensor error alarm, A22 or A31,
is blocked.

51
1.17 Operation without all sensors (Emergency 1 Operating
operation)

Alarms A20, A21, A24 & A25 that normally are

triggered by TT1 readings should be triggered
by TT2 when TT1 is disabled.

When the system has a Modbus connection

(P129=Modbus TCP or Modbus RTU) it is
possible to use Modbus registers to receive
temperature readings. Both TT1 and TT2
are then disabled and alarms A22, A23, A30
& A31 are blocked. This mode is activated
when P146=Modbus. It is not possible select
this mode if the system is controlling a heater
(P119=steam or electric).

If P146=TT2 custom then all alarm from TT2 is

blocked. It is intended for installations where
TT2 is permanently not connected to the
EPC60.

1.17.8 Control of Sludge Pump, Level in Sludge

Tank, and Butterfly Valve
The sludge accumulated in the bowl can be
discharged into an optional small sludge tank
with level switch. At high level signal a sludge
pump (P118 = yes) is running until the signal
is normal + 10 seconds . Otherwise see alarm
A120.

The level switch can be disabled (P159 = 0). In

this case A120 is blocked and the sludge pump
is running for 30 seconds at discharge (instead
of P234, see below).

The sludge pump is also activated during

certain timers. These running times are always
terminated by an extra pump running time
(e.g. during P234, or 5 seconds as in the
drain sequence). Note that this extra time is
independent of the other timers which may be
running simultaneously.

See also the Sequence diagram for other

occasions when the sludge pump is activated,
if selected (Parameter List chapter ‘2.2
Discharge’) .

The separator sludge outlet can contain a

manual butterfly valve which is used to close the
outlet when the separator is standing still.

Select with P131 (no, manual).

If P131 = no, alarm A122 is blocked.

52
1 Operating 1.17 Operation without all sensors
(Emergency operation)

1.17.9 System Without Feed Pump

It is possible to run the system without feed
pump (P127 = no).

In this case alarms A01 and A44 are not

supervised.

Remote start is not allowed.

53
1.17 Operation without all sensors (Emergency 1 Operating
operation)

1.17.10 System Without Water Transducer

(S-separator only)
It is possible to run the system without water
transducer (P117 = no).

In this case alarms A80 - A85 and A74 are not

supervised.

There is no calibration of the water flow. In

separation, automatic discharges are initiated
every 15 minutes (overrides P220). SV10 is
never activated (this means no displacement
before discharge and no conditioning water).
Water draining from the bowl is not allowed.

This also applies if the water transducer is

disabled (P128 = standby) or on alarm ‘A85,
MT60 fault’.

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1 Operating 1.17 Operation without all sensors
(Emergency operation)

1.17.11 Purifier Operation (only valid for S 805 and

S 815)
If the water transducer should malfunction, the
separator can be converted to purifier operation
as long as the feed density is below 991 kg/m3.

Stop the separator and change the standard

gravity disc to a larger one suitable for the
density of the oil used.
Change Parameter P147 to ‘Purifier’.
Change Parameter P117 to ‘No’.

The system can now be restarted and run as

a purifier system.

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