Siemens SINAMICS GM150 - Checking Hoisting Solenoids and Security Bolts; Checking the Capacitor Release; Checking the Isolating Clearances

9.4.4.3 Checking hoisting solenoids and security bolts
● Check the hoisting solenoids and security bolts at regular intervals.
● Replace defective hoisting solenoids and security bolts before (re)commissioning.
9.4.4.4 Checking the isolating clearances
● Slight, dry, non-conducting contamination is permitted.
● Remove contamination caused by dust in conjunction with high humidity.
9.4.4.5 Checking the capacitor release
Check the following settings:
● T950
Primary tapping: 400 V + 15%
Secondary side: jumpers 31 – 32 and 33 – 34
● K950
Measuring-circuit voltage at IN2 (no-load voltage of the C – tripping unit: approx. 160 V)
Switch positions: UNDERLOAD, NO MEMORY (the switches are located at the side )
T1 = 0.1 s
Ue = 30% / release at 90 V
Hysteresis = 5% / enable at 105 V
● K951
Measuring-circuit voltage at IN2
Switch positions: UNDERLOAD, NO MEMORY (the switches are located at the side )
T1 = 0.1 s
Ue = 30% / release at 90 V
Hysteresis = 5% / enable at 105 V
The wiring to the circuit-breaker must be checked according to the circuit diagram.
Maintenance
9.4 Inspection and maintenance
SINAMICS GM150 6SL3810-2LN31-8AA2
180 Operating Instructions Rev.201910281332 EXAMPLE