Notes To Be Read Before Switching On - Siemens SIMOTRAS 6SG7050 Operating Instructions Manual

Start-up
7.5

Notes to be read before switching on

DANGER
Make sure that no persons, machines or other objects are endangered when the drive unit is
started up! This should also cover the possibility of a malfunction.
Malfunctions or faults may occur as the result of connections becoming loose over time due to the
vibration of machines or the switching of power contactors. You should therefore check the
connections in your cubicle.
Frequent causes of malfunctions and faults are incorrect settings or carelessness during the start-
up procedure. It is often only a minor factor that causes a malfunction.
The following tasks should be completed before starting the converter for the first time:
1. The SIMOTRAS HD must be disconnected from the power supply on all poles.
2. Check the connections, the protective measures and the converter earth.
3. Check the supply voltage in the power section (max. 500 V AC).
4. Check the control voltage (max. 250 V AC).
5. Connect and set the motor protection element (motor protection switches, motor protection
relays), if PTC connected – check thermistor detector.
6. Check supply voltage to the three phase asynchronous motor (star or delta connection).
7. Check converter connector is securely connected.
8. Check the motor shaft moves freely with the brake released.
9. Rotation of the motor in either direction must not cause any damage.
10. Ensure that no persons are within the drive operating area.
7-8
SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
01.04