Siemens RAJA+ Operating instructions
Installation, Maintenance
& Troubleshooting Guide
For RAJA
+
Agriculture Starters
& Controllers
Contents:
3. Direct On Line Controller:
3.1 Product description
3.2 Wiring diagram
3.3 Technical Details
3.4 Installation
3.5 Operating procedure in normal condition
3.6 Troubleshooting guidelines in case any incoming fault is
present before switching ON the motor
3.7 Troubleshooting guidelines in fault condition when motor stops
while it is in running condition
3.8 Troubleshooting guidelines in case any fault is at the load side
Installation, Maintenance & Troubleshooting guide | Version 03
Product: Direct On
Line Controller
3.1: Product description
3
3
1
2
5
7
12
13
4
11
6
8
9
10
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
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Inside view of Direct On Line Controller
Fig.8
1: Amber LED
2: Green LED
3: Rocker Switch
4: Contactor
5: ON push button
6: OFF push button
7: Thermal Overload Relay
8: Terminal Block TB1
9: Terminal Block TB2
10: Earthing Screw
11: AV meter
12: Line monitoring relay
13: Starter Operating Modes
14: Phase selector switch
1
2
5
6
4
7
8
9
121314
10
3
11
3.2: Wiring Diagram: DOL Controller
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Installation, Maintenance & Troubleshooting guide | Version 03
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3.21 Control logic diagram
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3.22 Power circuit diagram
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Table: 15 Technical details of DOL Controller
Note: xx: Coil voltage; Z6:200-400V AC; Z8: 260-460V AC
yy: Coil voltage; FE:200-400V AC; FF: 260-460V AC
*Type 1 coordination as per IS/IEC 60947-4-1 Standard.
3.3: Technical details
Type (HP /
kW)
Ie
(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)
3TE7121-1HC14-1Axx 3 / 2.2 6.5 3TS3010-0Axx-08K 3US5000-1H8K 5-8 7UG0613-0yy20 20A/500V 1.5
3TE7121-1KC16-1Axx 5 / 3.7 10 3TS3110-0Axx-08K 3UW5102-1K 8-12.5 7UG0613-0yy20 25A/500V 1.5
3TE7121-2AC17-1Axx 6 / 4.5 12 3TS3210-0Axx-08K 3UW5102-2A 10-16 7UG0613-0yy20 25A/500V 1.5
3TE7121-2BC18-1Axx 7.5 / 5.5 14.5 3TS3210-0Axx-08K 3UW5102-2B 12.5-20 7UG0613-0yy20 25A/500V 2.5
3TE7121-2CC21-1Axx 10 / 7.5 19.5 3TS3311-0Axx-08K 3UW5202-2C 16-25 7UG0613-0yy20 32A/500V 2.5
Installation, Maintenance & Troubleshooting guide | Version 03
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3.4: 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. 8)
• Connect incoming and outgoing cables as follows (Refer Fig. 8):
- Use proper cable glands to ensure dust proofing. For conduit entry use packed washers.
- Select correct size of cables from Table 15
- 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 15B)
NOTE: LMRA is set in Manual 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 :
Installation, Maintenance & Troubleshooting guide | Version 03
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.
Table: 15A Mounting torque values
Sr. No Location Size Torque
1 Earthing screw (cover to body) M5 2.5-3.0Nm
2 Contactor 3TS30..33 M4 0.8-1.4Nm
3 LMR-A M4 0.8-1.4Nm
4 Terminal block 30A M4 0.8-1.4Nm
5 ON& OFF /Rest link ST4.2x9.5 0.8-1.2Nm
6 Dual VA Meter M4 0.2-0.3Nm
7 Selector Switch 3LD4 M4 0.8-1.1Nm
Table: 15B Terminal torque values
Operation:
• Ensure the door is closed.
• Rotate the Latch away from OFF push button
• Switch On the rocker switch.
• Check the status of amber LED. Wait till amber LED is continuously ON then only proceed.
• Depending upon Selector switch knob position for phase selection, Indication of incoming power
supply voltage can be seen on Dual VA meter.
• For starting the motor, press Green push button marked ‘I’ (Fig. 7)
• Line current of R phase is indicated by Dual VA meter.
• Indication of Motor ON can be seen on starter door through green LED.
• For stopping the motor press Red push button marked ‘O’ (Fig. 7)
Reset Operation
– If the overload relay trips, Reset manually.
(Allow a reset time of approx. 4 min.)
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Installation, Maintenance & Troubleshooting guide | Version 03
Sr. No Type Size Torque
1 3TS30..32 M4 0.8-1.4Nm
2 3TS33 M4 1.0-1.5Nm
3 Terminal block 30A M4 0.8-1.4Nm
4 Contact block 3SB5 M3.5 0.8-1.2Nm
5 Coil Terminals A1/A2 M3.5 0.8-1.2Nm
6 Aux. terminals of all Relays M3.5 0.8-1.2Nm
7 3UW51/52,3US50 M4 1.0-1.5Nm
8 3TX4010-2A M4 0.8-1.1Nm
9 Indicating light – Amber/Green M3 0.8Nm
10 Dual VA Meter – Current terminals M4 1.2Nm
11 Dual VA Meter – Voltage terminals M4 1.2Nm
12 3TS30..32 M4 0.8-1.4Nm
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