Siemens RAJA+ 3TE7111-2BC21-1A Series, Installation, Maintenance & Troubleshooting Manual

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2) LMR-A: Auto mode
2A : Check the mode of LMR-A, if it is Auto mode, please repeat the steps from 2B to 2H.
2I : No need to press ON push button.
2J : Starter gets switched ON automatically.
* LMR-A: Bypass mode
As in Bypass mode there is no protection from the inconing supply faults, however there may some conditions,
example mentioned below where Starter may not ON –
1. Phase loss
2. Incmoing 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.
If fault still exists, then
4
2F : - Check the rated operational voltage of the starter in incoming terminal block (TB1) between L1-L2, L2-L3, L1-L3.
- Check whether the 3-phase voltage in the incoming terminals of terminal block TB1 is >Maximum voltage allowed.
(Refer table no.6).
4
2G : - Starter will be operational only if the incoming supply voltage is between min.required voltage & Max.voltage allowed
(Refer table no.6).
- Repeat the steps from 2A to 2D and then go to step no.2H
If fault still exists, then
5
2F : - Check the rated operational voltage of the starter in incoming terminal block (TB1) between L1-L2, L2-L3, L1-L3.
- Check whether the operational line voltage difference between any 2 phase in the incoming. terminals of terminal block
TB1 is >50V.
5
2G : - Starter will be operational only if the incoming supply voltage difference between any 2 phase in the incoming terminal
block TB1 of the starter is <=50V.
- Repeat the steps from 2A to 2D and then go to step no.2H
2H : Amber LED will remain ON continously indicating that the fault is cleared
2I : Press the Green ON push button to switch ON the starter.
2J : Starter gets switched ON.
Manual
≤ 195
≤ 250
205
260
≥ 400
≥ 455
390
445
(Z6) 200-400
(Z8) 260-460
Table: 6 Range of Undervoltage & Over voltage
Starter
Voltage Range
(V)
Undervoltage fault
Trip voltage for
undervoltage fault
(V)
Trip voltage for
undervoltage fault
(V)
Trip voltage for
Overvoltage fault
(V)
Max.voltage
allowed
(V)
Overvoltage fault
Installation, Maintenance & Troubleshooting guide | Version 01
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