Siemens RAJA+ 3TE7131-1HC14-1A Betriebsanleitung

Installation, Maintenance

& Troubleshooting Guide

For RAJA

Agriculture Starters

& Controllers

Contents:

4. Direct On Line Controller with WLC:

4.1 Product description

4.2 Wiring diagram

4.3 Technical Details

4.4 Installation

4.5 Operating procedure in normal condition

4.6 Troubleshooting guidelines in case any incoming fault is

present before switching ON the motor

4.7 Troubleshooting guidelines in fault condition when motor stops

while it is in running condition

4.8 Troubleshooting guidelines in case any fault is at the load side

Fig. 9: DOL Controller with WLC

Installation, Maintenance & Troubleshooting guide | Version 04

Direct On Line

Controller with WLC

4.1: Product description

1. ‘ON’ push button (green)

2. ‘OFF/RESET’ push button (red)

3. Door knob

4. Metal Enclosure

5. Door

6. Mechanical Latch (OFF push button) to be used for preventing undesired ON operation of Starter

7. Name plate

8. LED (amber) to indicate availability and healthiness of incoming power supply

9. Green LED to indicate Motor ON status

10. Rocker switch (Control ON/OFF)

11. Dual VA meter (For indication)

12. Phase Selector switch

13. Earthing screw

Installation, Maintenance & Troubleshooting guide | Version 04

Inside view of Direct On Line Controller with WLC

Fig.10

1: Amber LED

2: Green LED

3: Rocker Switch

4: Phase Selector switch

5: ON push button

6: OFF push button

7: AV meter

8: Contactor

9: Thermal Overload Relay

10: Starter Operating Modes

11: Line monitoring relay

12: Water Level Controller

13: Terminal Block TB2

14: Terminal Block TB1

15: Earthing Screw

10 11 12 13 14

Installation, Maintenance & Troubleshooting guide | Version 04

4.2: Wiring Diagram: DOL Controller with WLC

4.21 Control logic diagram

Installation, Maintenance & Troubleshooting guide | Version 04

4.22 Power circuit diagram

Installation, Maintenance & Troubleshooting guide | Version 04

Table: 20 Technical details of DOL Controller with WLC

Note: xx: Coil voltage; Z6:200-400 Vac; Z8: 260-460 Vac

yy: Coil voltage; FE:200-400V AC; FF: 260-460V AC

*Type 1 coordination as per IS/IEC 60947-4-1 Standard.

4.3: Technical details

Type (HP /

kW)

(A) Contactor

Relay

Range

(A)

Line

Monitoring

Relay

Recommended

Max. Back-up

HRC Fuse rating,

SIEMENS Make

type 3NA7

– 500V*

Max.

Recommended

Cu cable size

(sq:mm)

3TE7131-1HC14-1Axx 3 / 2.2 6.5 3TS3010-0Axx-08K 3US5000-1H8K 5-8 7UG0613-0yy20 20A/500V 1.5

3TE7131-1KC16-1Axx 5 / 3.7 10 3TS3110-0Axx-08K 3UW5102-1K 8-12.5 7UG0613-0yy20 25A/500V 1.5

3TE7131-2AC17-1Axx 6 / 4.5 12 3TS3210-0Axx-08K 3UW5102-2A 10-16 7UG0613-0yy20 25A/500V 1.5

3TE7131-2BC18-1Axx 7.5 / 5.5 14.5 3TS3210-0Axx-08K 3UW5102-2B 12.5-20 7UG0613-0yy20 25A/500V 2.5

3TE7131-2CC21-1Axx 10 / 7.5 19.5 3TS3311-0Axx-08K 3UW5202-2C 16-25 7UG0613-0yy20 32A/500V 2.5

Technical data:

Terminal connections:

Product Water level controller relay

Control Voltage 415V AC

Frequency 50-60Hz

Operating modes Single tank operation (Delivery or Suction mode)

Dual tank operation (Delivery & Suction mode)

Trip time delay 2sec (+/-0.5sec)

Water Level controller relay:

WLCA is used in the DOL Controllers for the regulation of water level in the tank.

P1:

P2:

P3:

P4:

P5:

P6:

Sensors

A1:

A2: Coil supply 17:

18: NO contact

Installation, Maintenance & Troubleshooting guide | Version 04

Diagrammatic representation of the 3x modes of WLCA:

Delivery mode

P1 P2 P3

Suction mode

P1 P2 P3

Dual Tank mode

P1 P2 P3P1 P2 P3

Fig.11

For Delivery mode to become operational: P2, P3 Sensor should be out of water

For Suction mode to become operational: P1, P2, P3 Sensor should be inside water

For Dual tank mode to become operational: P1,P2, P3 Sensor should be inside water & P5, P6 out of water

Installation, Maintenance & Troubleshooting guide | Version 04

4.4: Installation

• Open the door by rotating the door lock anticlockwise.

• Mount the starter on a vertical wall/ plate free from vibrations with proper nuts and bolts. Refer operating

instruction for mounting dimensions.

• Remove the rubber grommets for the incoming and outgoing cable connections. (Refer Fig. 10)

• Connect incoming and outgoing cables as follows (Refer Fig. 10):

- Use proper cable glands to ensure dust prooﬁng. For conduit entry use packed washers.

- Select correct size of cables from Table 20

- Connect line and motor leads exactly as per wiring diagram pasted inside the cover of the starter.

- Terminate the incoming supply cables on terminal block TB1 & outgoing cables to motor on terminal block TB2

(Tightening torque -Refer table 20B)

NOTE: LMR-A is set in Manual mode (Factory setting)

WLCA is set in Delivery mode (Factory setting)

- Connect the earthing conductor to terminals marked (earth) on the starter body with torque 1.2 to 1.6Nm.

The Starter is now ready for commissioning.

Commissioning :

Operating Characteristics:

The given characteristics (Fig. 6) are average values of all ranges and sizes of bimetal relays and are mainly intended to indicate

the inverse time current characteristics & tripping times of the same. The tripping times shown are for relays starting from the cold

state. At operating temperatures (heated at rated current) these are reduced to about 25% of the value obtained from the

characteristics.

Caution

• During commissioning or maintenance always ensure that the main supply is disconnected by switching oﬀ the main

switch & Rocker switch.

• If the relay trips even when set at rated motor current the suitability of the starter/relay for the particular application

should be checked with the nearest Siemens oﬃce.

For exact setting of overload relay, follow the instruction given below:

Before switching ON recheck all external connections.

• Overload relay setting:

- For closer protection set the overload relay to actual phase current as measured by an ammeter.

In the absence of an ammeter, use the procedure given below:

- Start the motor and let it run for 30 mins. Then gradually reduce the relay settings till it trips. Set the relay at a

slightly higher value than this setting. Overload relay characteristics shown in Fig. 6 can be used to estimate the

average tripping time at diﬀerent multiples of set current.

- Allow a reset time of approx. 4 min. before pressing the blue knob on the relay to reset it.

- Restart the motor after some time. If the relay does not trip then consider it to be properly set. If the relay trips,

set at a little higher value than before and recheck.

• Close the front door.

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