VER-06

ELECTRICAL CONNECTION IN TWO LEVEL ELECTRICAL CONNECTION IN TWO LEVEL CONTROLLER MOUNTING ON AND RELEASING FROM DIN RAIL
POWER AND CONTROL WIRING POWER AND CONTROL WIRING
CONTROLLER FOR BOTH TANK
Fig. 6A

OR EQUIVALENT TO PUSH THROUGH

R R
INSTALLATION

DIN RAIL ( 35 mm )
Y MOTOR Y MOTOR

USE SCREW DRIVER NO. 936

B B INSTRUCTION MANUAL
OFF ON
Fig. 1A OFF ON
Fig. 4A FOR

THE SLOT AS SHOWN

P3 1 2 3 N/V N/V WATER LEVEL
P2 WLCD1
CONTROLLER

OPEN
P1 AUX. DOL STARTER DOL STARTER

EN
OP
SUPPLY

STEP 2
Note :
7 8 9 (13-14)- SUCTION LOGIC Relay contacts shown
(13-15)- DELIVERY LOGIC in healthy condition.
.
WLC D1
13 14 15 1 2 3 1 2 3 Provide an external
WLCD1 WLCD1 link across ON push
AUX. AUX.
SUPPLY SUPPLY
button as shown by
WATER PUMP
dotted line.
TANK Note :- . The relay contacts shown in healthy condition. MOTOR
7 8 9 7 8 9

RELEASING FROM DIN RAIL

. The connections shown in fig. for SUCTION LOGIC.
. Provide an external link across ON push button as shown by dotted line.

THIS SLOT TO RELEASE FROM

MOUNTING ON DIN RAIL
P3
P2 13 14 15 13 14 15

INSERT SCREW DRIVER IN

P1
CONNECTION DIGRAM
INDICATIONS
Fig. 1B P2
P3
DELIVERY TANK
P1
L1 : POWER ON SUCTION UNIT DELIVERY UNIT
3 SUCTION TANK
1 2 L2 : RELAY ON
7 13 TERMINAL DETAILS TESTING CHART FIG. Fig. 4B
1: PROD 1 (Ref)

DIN RAIL
2: LOWER LEVEL PROD 2 SENSOR PROD SENSOR PROD RELAY OUT-

STEP 1
REAR
VIEW
8 14 15 3: UPPER LEVEL PROD 3 IN SUCTION IN DELIVERY PUT STATUS
P3
7 8 9 7,8 : AUX. SUPPLY TANK (T1) TANK (T2) OF WLCD1
P2 13-14 : O/P CONTACTS ( C-NO) 1 1 1 1
No. 1 1
P1
13 14 15 13-15 : O/P CONTACTS (C-NC) P1 P2 P3 P1 P2 P3
1 IN IN IN IN IN IN OFF
ELECTRICAL CONNECTION IN ONE LEVEL Fig. 2 2 IN IN IN IN IN OUT OFF
POWER AND CONTROL WIRING 3 IN IN IN IN OUT OUT ON
CONTROLLER 4 IN IN OUT IN IN IN OFF
R 5 IN IN OUT IN IN OUT OFF
Y MOTOR 6 IN IN OUT IN OUT OUT ON
Fig. 6B
B 7 IN OUT OUT IN IN IN OFF
8 IN OUT OUT IN IN OUT OFF

76
76
OFF ON 9 IN OUT OUT IN OUT OUT OFF

1 2 3 N/V NOTE : IN : SENSOR PROD INSIDE THE WATER

OUT : SENSOR PROD OUTSIDE THE WATER

117.5
AUX. WLCD1 DOL STARTER
ELECTRICAL CONNECTION IN TWO LEVEL CONTROLLER WITH

x
SUPPLY

30.5
POWER AND CONTROL WIRING EXTRA LOW OR EXTRA HIGH ALARM

x
7 8 9 (13-14)- SUCTION LOGIC
(13-15)- DELIVERY LOGIC

x
R

.5
13 14 15
Y MOTOR

30
P2
P1
B
WATER OFF ON

4.5 x 6 SLOT
TANK Note :- . The relay contacts shown in healthy condition. 1 2 3 1 2 3
N/V
WLCD1 WLCD1
. The connections shown in fig. for SUCTION LOGIC. AUX. AUX.
DOL STARTER
76
SUPPLY SUPPLY 35
. Provide an external link across ON push button as shown by dotted line.

15 . 25
27
7 8 9 7 8 9
INPUT SENSOR DIMENSION Fig. 3 EXTRA HI / LO
ALARM UNIT
Fig. 5

OPEN
WATER TANK P3
For P2 13 14 15 13 14 15
P2’

117.5
DRILLING DETAILS

117.5
(EXTRA LOW) P1
57mm
25mm SUCTION

D1 TYPE BOX
NOTE : Relay contacts shown in healthy condition.
DELIVERY .

OR UNIT The connections shown in fig. for SUCTION LOGIC

68
C-NO- (13-14) SUCTION C-NC- (13-15) DELIVARY.
24mm The terminal given of Suction / Delivary unit.
.

The ALARM for extra high or extra low can be taken as below
WATER TANK
P2’
P3
C-NO- (13-14) EXTRA HIGH C-NC - (13-15) EXTRA LOW
.
VERSOIN - 06
For P2 Provide an external link across ON push button as ( 08 / 08 / 2014 )
(EXTRA HIGH) P1 shown by dotted line.
VER-06

INSTALLATION INSTRUCTIONS FOR WLCD1 material (For specific and typical applications 1,2,3 of WLCD1. Connect the output relay TESTING PROCEDURE
you may use a sensor prod of suitable contacts as shown in various applications
INTRODUCTION electrically conductive material in case Minilec suitable to your requirement. (Ref.Fig. No. 1 A /
sensor prod does not suit your requirement ) . 2 / 4A OR 5 )
Thank you for selecting and purchasing Start
Minilec make water level controller WLCD1. Consult Minilec before using modified prod. TECHNICAL SPECIFICATIONS OF WLC D1
The following installation instructions would The Minilec sensor prod has a bolting
guide you in installing your WLCD1 and arrangement for connecting a suitable cable & 1. Auxillary supply voltage
making the best use of it as per desired it is to be suspended from top opening of the 24/110/220/230/240/380/415/440 VAC ±20% is it Wait till
application. water tank. (Ref. Fig.3 for Dimensions) 24VDC ±20% NO Check Aux Supply within the NO supply
See indication is L1 Voltage at 7 & 8 of specified
WLCD1 is a Water Level Controller operating MOUNTING 2. Frequency : 50 Hz/60Hz ± 3% ON ? tolerance
voltage
WLCD1 normalizes
on electrical conductivity principle for controlling limit ?
the pump operation automatically at two Your WLCD1 can be RAIL mounted.(See 3. Power consumption : 3VA
YES
desired Water Levels in either the overhead Fig.6A for mounting it on RAIL and releasing it 4. Input Sensor : 3 Nos.
tank or underground water tank / borewell. from RAIL respectively).It is suitable for Stainless steel prods
Select DELIVERY logic by using Select SUCTION logic by using
WLCD1 is an auxillary relay & should be 35 mm Rail. ( for panel mounting & drilling 5. Sensitivity : 1 KOhms - 200 KOhms output contact at ter. 13-15 of output contact at ter. 13-14 of
used in the control circuit.The output of the details see Fig. 6 B ). WLCD1 WLCD1 YES CONSULT
switching relay is 1 changeover contact of 5A, 6. Output relay & contact rating (Resistive)
MINILEC
240 VAC rating. (Resistive) CAUTION . : 1 Changeover Contact & 5A, 240 VAC
1. Ensure that your WLCD1 is - 7. Operating conditions : Connect P1 at terminal 1 of WLCD1. Connect P1 at terminal 1 of WLCD1.
The WLCD1 unit is operating in 0
Temperature : -5 c to 60 c
0 Do not connect the sensor prods P2 Do not connect the sensor prods P2
AUTOMATIC MODE only. * not installed near any heat sources like & P3 at 2 & 3 of WLCD1 & P3 at 2 & 3 of WLCD1
burner, sunlight, electric arc etc. Humidity : Upto 95% RH respectively. Put prod P1 in water. respectively. Put prod P1 in water.
SELECTION OF LOGIC
* not subjected to abnormal operations. 8. Life Expectancy :
6
Your WLCD1 can be set to operate in either * installed as near to the starter as possible. 0.5 x 10 operations at 100% rating.
SUCTION logic or DELIVERY logic by using * not subjected to direct rain,stormy winds & dust. 9. Trip setting : Is
2. Ensure that the sensor prods are suspended your pump NO CONSULT NO Is your
suitable output contact at either terminals 13 - According to the levels of sensor placed in ON & L2
pump & L2
14 (C - NO) or 13 - 15 (C - NC) of WLCD1 from the top opening of the water tank in a MINILEC OFF ?
the water tank. OFF ?
respectively. suitable PVC conduct piping.Metal pipes
10. Trip Time Delay (secs):
should not be used. The sensor prod YES YES
FUNCTION DURING SUCTION LOGIC Less than 1 sec.
should not be wall mounted on metallic
11. Resetting : Automatic Now put prod P2 in water Now put prod P2 in water
When you select SUCTION LOGIC by using water tanks.
output contact at terminals 13 & 14 (C - NO) 3. Ensure required water resistance by 12. Indications:
then the level sensing prods P1,P2, P3 are to adjusting the sensitivity potentiometer given Power on : L1(Green) Relay on: L2(Red)
be put into the underground water tank.The on front plate. 13. Enclosure : ABS Is
pump motor will start automatically when the your pump NO NO Is your
pump & L2
underground tank is full (i.e. when prod P1, P2 SENSITIVITY SETTING 14. Mounting : ON & L2
OFF ?
OFF ?
and upper level prod P3 are under water ) & Fix the sensitivity according to the liquid 35mm rail mounting & panel mounting.
will stop automatically when the tank is empty conductivity with the help of sensitivity 15. Sensor Weight (gms) approx. : 50 each
(i.e.when prod P1 is under water and the lower YES YES
potentiometer. 16. Sensor dimensions overall(mm)
levelprod P2 is out of water). Also put prod P3 in the water Also put prod P3 in the water
1) Keep all the prods in water and pot at (Single Prod) : Ø 24 x 76 (L) without removing prods P1 & P2 without removing prods P1 & P2
FUNCTION DURING DELIVERY LOGIC maximum position. Now relay becomes ON. 17. Unit Weight (gms) approx. : 300
2) Turn the pot towards minimum side till
When you select DELIVERY LOGIC by APPLICATIONS :
using output contact at terminals 13 & 15 C - . the relay becomes OFF.
NC) then the level sensing prods P1, P2, P3 3) Now adjust the pot above the setting where The WLCD1 is basically two level controller Does your NO NO Is your
pump stop pump & L2
are to be put into the overhead water tank. relay becomes on & doesn’t get chatter for either overhead or underground tank. running & L2 ON ?
The pump motor will start automatically when . by turning the pot towards maximum side. It can be used as one level controller for ON ?
Now check this operation for 2/3 times for either overhead or underground tank. ( Ref.Fig.
the overhead tank is empty ( i.e. when prod P1
repet functional accuracy. No. 2 & corresponding note for electrical
is under water and lower level prod P2 is out of connections). YES YES
water) & will stop automatically when the ELECTRICAL CONNECTIONS The WLCD1 can be used as two level
overhead tank is full (i.e. when prod P1,P2 controller for both overhead & underground tank. Your WLCD1 operation is perfect
andthe upper level prod P3 are under water). See Fig.1B for electrical connection details of
In this case two units are required.(Ref. Fig.
WLCD1. See Fig.1A for installation of No. 4A for electrical connections)
INPUT SENSOR WLCD1 in the control circuit. Auxillary supply To avoid rusting of
The extra high or extra low level can be
WLCD1 is to be used with Minilec sensor voltage should be as marked on the front plate detected by using the WLCD1 unit. This electrode, apply TEFLON END
prod only. The sensor is of stainless steel of the WLCD1.Connect P1,P2,P3 at terminals application also requires two units. (Ref.Fig. TAPE over the joint where
No. 5 for electrical connections) cable is fitted to electrode.