Siemens RAJA+ Installation, Maintenance & Troubleshooting Manual page 14

Installation, Maintenance & Troubleshooting guide | Version 03
If fault still exists, then
8G : - Check the rated operational voltage of the starter in incoming terminal block (TB1) between L1-L2, L2-L3, L1-L3
3
with suitable equipment e.g. multimeter.
- Check whether the 3-phase voltage in the incoming terminals of terminal block TB1 is <minimum required voltage
(Refer table no.18).
8H : - Keep the 3-phase voltage to the incoming terminals of terminal block TB1 to a voltage between min.required voltage
3
& Max.voltage allowed (Refer table no.18).
- Repeat the steps from 8A to 8F and then go to step no.8I
If fault still exists, then
8G : - Check the rated operational voltage of the starter in incoming terminal block (TB1) between L1-L2, L2-L3, L1-L3
4
with suitable equipment e.g. multimeter.
- Check whether the 3-phase voltage in the incoming terminals of terminal block TB1 is >Maximum voltage allowed.
(Refer table no.18).
8H : - Keep the 3-phase voltage to the incoming terminals of terminal block TB1 to a voltage between min.required voltage
4
& Max.voltage allowed (Refer table no.18).
- Repeat the steps from 8A to 8F and then go to step no.8I
If fault still exists, then
8G : - Check the rated operational voltage of the starter in incoming terminal block (TB1) between L1-L2, L2-L3, L1-L3.
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- Check whether the operational line voltage difference between any 2 phase in the incoming. terminals of terminal
block TB1 is >50V.
8H : - Starter will be operational only if the incoming supply voltage difference between any 2 phase in the incoming terminal
5
block TB1 of the starter is <=50V.
- Repeat the steps from 8A to 8F and then go to step no.8I
8I : Amber LED will remain ON continously indicating that the fault is cleared
8J : Press the Green ON push button to switch ON the starter.
8K : Starter gets switched ON.
8L : Green LED turns ON indicating that the starter is ON.
Table: 18 Range of Under voltage & Over voltage
Starter
Voltage Range
undervoltage fault
(V)
Manual
(Z6) 200-400
(Z8) 260-460
2) LMR-A: Auto mode
8A : Check the mode of LMR-A, if it is Auto mode.
8B to 8I : Follow steps from 8B to 8I of LMR-A Manual mode.(Corrective action 1)
8J : No need to press ON push button.
8K : Starter switches ON automatically.
8L : Green LED turns ON indicating that the starter is ON.
* LMR-A: Bypass mode
As in Bypass mode there is no protection from the incoming supply faults, however there may be some conditions, example
mentioned below where Starter may not ON –
1. Phase loss
2. Incoming supply voltage less than the minimum required operational voltage of the Starter.
3. Incoming supply voltage is very high etc.......
In the above conditions check the Starters as explained in Auto & Manual Mode.
Undervoltage fault
Trip voltage for
Healthy voltage
(V)
195
250
Trip voltage for
Overvoltage fault
(V)
205
260
Overvoltage fault
Healthy voltage
(V)
400
455
(V)
390
445
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