SWITCHING CONTROL UNIT

TYPE ATS-050
Made for preparing mains/genset switchboards
(contactors or motor-driven switches).
Compatible with the control units Type CAM-109 CAM-110 CAM-120 fitted on the generating set .
OPERATING AND INSTRUCTION MANUAL

G G
AUT

MAN

AUT

ATS
G
MAN

IT IS EQUIPPED WITH:
• mains three-phase voltmetric control: minimum voltage and phase sequence of the mains.
• generator voltmetric control : the voltmetric relay of CAM-109 CAM-110 or CAM-120 is used.
• button for diverting the mains or the generator to the power users.
• mains and generator presence warning lights.
• manual and automatic operating.

PARMA ® ITALY

Tel. +39 0521/772021 Fax +39 0521/270218

ELCOS- Parma- Italy - gb - ATS-050 E-mail: info@elcos.it - HTTP://www.elcos.it 1
 BRIEF INSTRUCTIONS

CUMULATIVE
ALARM GENSET CONTROL
WITHOUT STOP UNIT IS NOT
(YELLOW) IN AUTOMATIC
WITH STOP OPERATION
(RED)

MAINS VOLTAGE
IS PRESENT
G G GENERATOR
VOLTAGE
IS PRESENT
AUT

MAN

®
GENERATOR IS
CONNECTED
TO THE USER
AUT

ATS
G
MAN
MAINS IS
CONNECTED
TO THE USER

SCALE 1:1

GENERATOR SET CONNECTED TO THE POWER SWITCHBOARD

CONTROL PANEL WITH POWER SWITCHING

REVISIONS HISTORY
Date Level of the Description Page
REVISION

2 ELCOS- Parma- Italy - gb - ATS-050

 OPERATION
FUNCTIONS SELECTION
The function selected
ATS with the key is shown by
the associated warning light.
MANUAL

CONTROL FOR MAINS GENERATOR CONTACTORS

It is left to the key G

By pressing on the key, the load is switched from the mains to the generator and vice versa.
PROTECTIONS DEVICES
The protection function in manual mode is ACTIVE.

AUTOMATIC
When a mains fault occurs, after the MAINS FAILURE STARTUP DELAY time has elapsed, the control
unit commands the opening of the mains contactor control and sends the generator set startup
command. With normal generator voltage, once the GENERATOR CONNECTION TO POWER USERS
DELAY has elapsed, the generator contactor is closed.
When the mains voltage is restored after the MAINS ACCEPTANCE time has elapsed, the control unit
operates the opening of the generator contactor. After the time (1 sec) the mains contactor is closed.
The cooling time allows and facilitates the subsequent cooling before sending the generator set stop
command.

GENERATING SET STARTING

-In automatic mode when a mains fault occurs and the MAINS FAILURE STARTUP DELAY time has
elapsed.

DETECTION OF RUNNING ENGINE

This is obtained by the generator voltage G , detected by the control unit of the generating set.

GENERATING SET STOP

-In automatic mode when the mains voltage is restored or due to the intervention of the protection
devices controlled by the CAM-110 or the CAM-120 control units.

PROTECTION DEVICES OF GENERATOR SET AND POWER USERS

The interval can cause the engine to stop, activate the general alarm (see description of fault functions
on page 6) and is indicated by the
yellow light LED, when the fault does not cause the engine to stop or
red light LED, when the fault causes the engine to stop.

GENERAL ALARM
This is produced by mounting an acoustic signal, linked to the appropriate terminal 70B.
When key is pressed the general alarm is silenced.

Before starting automatically (expect for starting due to mains failure), the generator set activates the
intermittent general alarm for 8 seconds, followed by a pause of 3 seconds.
MAINS GENERATOR THREE-PHASE VOLTMETER RELAYS
INSIDE THE CONTROL UNIT
These control the voltages of the mains and of the generator set. They intervene in the event of voltage
failure, undervoltage and incorrect phases sequence.
MAINS RELAY
When voltage in three phases is detected, with value within the preset limits, after the mains
acceptance delay (programmed to 40 sec.) the generator set stops.

ELCOS- Parma- Italy - gb - ATS-050 3

4
DIAGRAM OF CONNECTION WITH MOTORISED SELECTOR
(AT MAINS VOLTAGE – GENERATOR – POWER USERS 400V) REMOVE FUSE F10 BEFORE
OPERATING THE HANDLE
FOR THE EMERGENCY
THREE PHASE MAINS MANUAL OPERATION OF
SINGLE PHASE THE MOTORISED
90N DETECTION
MAX 570VAC DETECTION SELECTOR TERMINALS
FU2 1A 91 NEU- SWITCHBOARD
91U 50÷ 60Hz
90N TRAL OR
FU3 1A 92 FOR CORRECT
92V OPERATION IT IS ES- N1
FU4 1A 93 SENTIAL TO CONNECT
93W THE THREE PHASES 92V PHASE U1 X-MAINS 400V
Connect a battery AND THE NEUTRAL V1
charger near MOTORISED SELECTOR
CONTROL UNIT CONTROL 71 W1
(on the G.S.)
the CAM-109, TYPE ATS-050 MAINS
CONTACTS 72 71
CAM-110

3 W MAX
CAPACITY

3 W MAX

OUTPUT ( )
OUTPUT (+ )
or CAM-120 MAX
3A 275VAC 73 72
control unit.
GENERATOR 74
74

positive voltage fails)

CONNECTIONS
Maximum
distance 100 m.
Supply of motorised
selector and control unit
minimum section 4 mm²,

CONTROL
SELECTOR
CLOSING CONSENT
(73-74) OF THE MOTORISED
SUPPLY
GENERATOR INPUT

INPUT
FROM GENERATING SET

AUTOMATIC / MANUAL
START COMMAND
GENERAL
ALARM
other connections +
minimum section 1,5mm². 1 2 3 30A 70A 70B
KM-G
Connect: FU1 4A

to the battery
to terminal 30
of the G.S. N2
control unit
to terminal 70 MOTORISED SELECTOR U2 X-USER 400V
of the G.S. RETURN V2
control unit AUT
W2
CAM-110 CAM-109
With modified programming. See
SUPPLY

CHOICE OF FUNCTION to be

FUSE
associated with the output
(terminal 6), on the technical
programming operationsmanual
(CAM-110) on page 6 and choose
GENERATOR
CONTACTOR CONTROL FU
5
6A
CAM-120 73
With the CONTACT 73-74
connected as
indicated in this schema 74
1

ELCOS- Parma- Italy - gb - ATS-050

When the terminal 70A is not connected
FU to CAM-109 CAM-110 or CAM-120, then it must
be connected the terminal 1+.
(+)
 DIAGRAM OF CONNECTION WITH CONTACTORS
(AT MAINS VOLTAGE – GENERATOR – POWER USERS 400V)

THREE PHASE MAINS SINGLE PHASE

TERMINALS

90N DETECTION DETECTION

SWITCHBOARD

MAX 570VAC
FU2 1A NEU-
91U 50÷ 60Hz
90N TRAL OR
FU3 1A
FOR CORRECT OPERATION
92V IT IS ESSENTIAL TO N1
FU4 1A CONNECT THE THREE

ELCOS- Parma- Italy - gb - ATS-050

93W PHASES AND THE NEUTRAL 92V PHASE U1 X-MAINS 400V

CONTACTORS CONTROL
V1
Connect a battery CONTROL W1
charger near 71
UNIT MAINS FU6
(on the G.S.) CONTACTS 72

3 W MAX
OUTPUT (+)
TYPE ATS-050

3 W MAX
OUTPUT ( )
the CAM-110 CAPACITY
or CAM-120 MAX
3A 275VAC 73 KM-R KM-G
control unit. FU7
GENERATOR

positive voltage fails)

74
KM-G KM-R
CONNECTIONS
Maximum
distance 100 m.
Supply of control unit:
minimum
section 2,5 mm²,
other connections:
GENERATOR INPUT

minimum SUPPLY

AUTOMATIC / MANUAL
START COMMAND

CLOSING CONSENT
(73-74) OF THE MOTORISED
GENERAL
ALARM

SELECTOR CONTROL
INPUT
FAULT
FROM GENERATING SET
section 1,5 mm². + B.M.
KM-R KM-G
Connect: 1 2 3 30A 70A 70B
FU1 4A
to the battery

to terminal 30 N2
of the U2
CAM-110 CAM-109 X-USER 400V
G.S. With modified programming.
control unit See CHOICE OF FUNCTION to be V2
associated with the output W2
to terminal 70 (terminal 6), on the technical
of the programming operations manual
G.S. (CAM-110) on page 6 and choose PROGRAMMING THRESHOLD MAINS PRESENT
control unit GENERATOR CONTACTOR MAINS PROGRAMMABLE TIMES
CONTROL VOLTAGE SECONDS 237 167 179
410 290 310
STARTUP
DELAY NOT 9 0 1
CAM-120
ANCE

AFTER
MAINS

ENGINE

73 USED
ACCEPT-

COOLING

With the CONTACT UNDER- MAINS 231 400 8 2 330 190

73-74 connected as VOLTAGE FAILURE
indicated in this 74 230 V~ 10% 3 3 15
1 schema N 225 390 7 3 350 202
6 5 4
When the terminal 70A is not connected 400 V~ THREE 5%
FU PHASE 120 40 2 380 370 360
to CAM-109 CAM-110 or CAM-120, then it must 220 208
be connected the terminal 1+. 5 1 2 3 4 5 6 213
6A

5
(+ )
 CONTROL UNIT ON THE GENERATOR SET CONNECTED TO
THE SWITCHING COMMAND CONTROL UNIT
Connect a generator set control unit TYPECAM-109 CAM-110 or CAM-120 to the ATS-050 control unit.
CONTROL UNIT ON THE GENERATOR SET SWITCHING COMMAND CONTROL UNIT
TYPE CAM-109 CAM-110 or CAM-120 TYPE ATS-100

FAULTS TRANSMITTED BY THE

PROGRAMMING GENERAL
To obtain the necessary functions, program ATS CAM-109 CAM-110 or CAM-120 ALARM
ENGAGED (see the CAM-109 CAM-110 CAM-120 CONTROL UNIT OUTPUT
Technical programming operations manual on page 6). and detected BY THE ATS-050 (terminal)70B
ATS ENGAGED. CONTROL UNIT
The input (terminal) 30 and the output (terminal) 70
functions change.
INPUT 30 Signals with cumulative LEDs
Engine starting and stopping are controlled by the ATS-050
control unit.
OUTPUT 70 YELLOW LED RED LED
Sends data to the ATS-050 control unit to: (without stop) (with stop) ACTIVE

INDICATE THE FUNCTIONS:

THE GENERATOR SET IS IN FAULT MODE

(with engine stopping)

THE GENERATOR SET IS IN FAULT MODE

(without engine stopping)

Sends data to the control unit to INDICATE THE G

FUNCTIONS:
• THE GENERATOR SET IS NOT IN AUTOMATIC MODE
• OUTPUT 70
Warns of imminent automatic starting
(except for starting due to mains failure)

NOTES ON SOME FUNCTIONS WITH ATS ENGAGED

FUNCTION

Start - stop clock NOT ENABLED NOT PRESENT

START - STOP buttons ENABLED

SWITCHING COMMAND PRESENT ENABLED

FUNCTIONS AND FAULTS

Moment of Stores the General alarm
DESCRIPTION activation
INTERVENTION OCCURS WHEN: function (70B) active

INCORRECT Always The connections of the mains phases are incorrect.

MAINS PHASE active The fault is indicated by the two flashes of the LED . NOT YES
SEQUENCE (does not close the mains contactor).
After the If the signal of CLOSING GENERATING CONTACT does not
GENERATOR DOES arrive within 60 seconds,The fault is indicated by the NOT YES
ATS-050
NOT SUPPLY call three flashes of the LED .
6 ELCOS- Parma- Italy - gb - ATS-050
 NOTICES
Used only to check and command a genset unit. It commands the mains and generator contactors to supply the user. It
has been designed to be installed only inside on an electrical panel as a single unit and so that it can be connected to
other components (contactors, fuses, thermo-magnetic switches, etc.) which the installer will have available to complete
the plant.

Warning: Components carrying dangerous voltage levels

Only assigned and suitably trained personnel are allowed access to the control unit. No
maintenance operations are permitted unless the plant is disconnected from the mains and the
battery. As an additional safety measure, the plant phases should be short-circuited and earthed.
Not withstanding the above, only assigned and trained personnel can perform the following
operations with the plant on:
- make a visual inspection of the control unit, the connections and their markings;
- measure the voltage and/or current values;
- programming of the functions.
These interventions, however, must be performed using equipment which ensures appropriate levels of
electrical protection.

Warning:
Adhere closely to the following advice

- When making connections always follow the instructions and the Wiring Diagrams on pages 4-5.
- Any interventions on the unit must be performed with the motor stationary and terminal 50 of the starting motor
disconnected.
- Check that the consumption of the connected equipment are compatible with the described technical characteristics.
- Install in such a way that there is always adequate heat disposal.
- Always install under other equipment which produces or spreads heat.
- Handle and connect without mechanically stressing the electronic card.
- Make sure that no copper conductor cuttings or other waste material fall on the control unit.
- Never disconnect the terminals of the battery with engine running.
- Never use a battery charger for the emergency start-up; the control panel could be damaged.
- In order to safeguard people and equipment, before connecting an external battery charger, disconnect the electrical
system terminals from the battery poles.

THIS CONTROL UNIT IS NOT SUITABLE FOR OPERATING IN THE FOLLOWING CONDITIONS:
- Where the environmental temperature is outside the limits indicated in the manual.
- Where the air pressure and temperature variations are so rapid as to produce exceptional condensation.
- Where there are high levels of pollution caused by dust, smoke, vapour, salts and corrosive or radioactive particles.
- Where there are high levels or heat from radiation caused by the sun, ovens or the like.
- Where attacks from mould or small animals are possible.
- Where there is the risk of fire or explosions.
- Where the control unit can receive strong vibrations or knocks.
- Where the control unit is protected by barriers or casing with protection level less than IP40.

ELECTROMAGNETIC COMPATIBILITY
This control unit functions correctly only if inserted in plants which conform with the CE marking standards; it meets the
exemption requirements of the standard EN61326-1 but it cannot be excluded that malfunctions could occur in extreme
cases due to particular situations.
The installer has the task of checking that the disturbance levels are within the requirements of the standards.

CONDUCTION AND MAINTENANCE

The following maintenance operations should be performed every week:
- check that the indicators function;
- check the batteries of the genset unit;
- check that the conductors are tight, check the condition of the terminals.

UNLESS WE MAKE A WRITTEN DECLARATION STATING THE CONTRARY, THIS CONTROL UNIT IS NOT
SUITABLE FOR USE AS A CRITICAL COMPONENT IN EQUIPMENT OR PLANTS RESPONSIBLE FOR KEEPING
PERSONS OR OTHER LIVING BEINGS ALIVE.

YOUR ELECTRICAL TECHNICIAN CAN ASK ANY QUESTIONS ABOUT

THIS CONTROL UNIT BY TELEPHONING OUR TECHNICIAN
ELCOS- Parma- Italy - gb - ATS-050 7
 TECHNICAL DATA
Battery supply voltage 12 Vdc and 24 Vdc
Supply voltage 8 ÷ 32V
Max consumption 120 mA at 12V 65 mA at 24V
Suitable for generators with rated voltage of 220 ÷ 450Vac ±10%; frequency 50 ÷ 60Hz
Rated • Terminal board of mains 600V
insulation • Terminal board of generator 600V
voltage: • Terminal board of battery 32V
Capacity of contacts for mains/gen. contactors control 250V 3A (AC1)
Max load of the outputs (terminals 30A 70A 70B). 3W
Degree of rear protection IP00
Degree of front protection IP64
Temperature range −20 ÷ +50ºC
Weight 415 g
Dimensions (LxHxP) mm 157x109x52
Hole mm 88x137

ORDERING DATA
Type ATS - 050 code 00242268

ACCESSORIES SUPPLIED
KIT MU-ATS-050 code 40804455

CONFORMITY DECLARATION

ELCOS s.r.l. assumes full responsability for declaring that the control unit:

type ATS-050
installed and used in the ways and for the purposes described in the instruction and user
manual, is in conformity with the following directives:
- 2006/95/CE related to the electrical materials destined to be used within certain
voltages limits
- 2004/108/CE related to the electromagnetic compatibility and that repeals the
directive 89/336/CEE,
- 2011/65/UE on the restriction of the use of certain hazardous substances
in electrical and electronic equipment,
because it is built and functions in accordance with the harmonized Standards:
EN61010-1, EN61326-1, EN61326/A1, EN61000-4-2, EN61000-4-3, EN61000-4-4,
EN61000-4-5, EN61000-4-6, EN60529.
® Parma,30/01/2013
S.r.l. President
Via Arandora Star, 28/a
I 43122 PARMA ITALIA
Tel. +39 0521/772021 Fax +39 0521/270218
E-mail: info@elcos.it - HTTP://www.elcos.it Margini Enzo
8 ELCOS- Parma- Italy - gb - ATS-050