17 • Technical Data
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Signalling
•
Delay the opening of a line contactor at the end of SOFT STOP, thus allowing current to decrease to zero
before opening the contactor
•
Switch to / from Dual Adjustment settings with a time delay from the START signal (see Special Starting
section
O/C SHEAR PIN detection
- when O/C Shear-pin is selected, the relay is energized upon SHEAR-PIN
detection (RVS-DN’s trip can be delayed 0-5 sec).
In this case, the relay incorporates on and off delays of 0-5 sec. each.
The O/C SHEAR PIN relay can be used for the following purposes:
•
Interlock with other systems
•
Signalling
•
Delay for operating a reversing combination of upstream contactors when SHEAR PIN is detected, thus
allowing clearing of a jam condition.