Function Test - Siemens G120P Technical Manual

8.3.3.3 Function test

Siemens
Building Technologies
Preliminary test
Perform the preliminary tests set out in the table below without the motor
connected. Only in this way can you be certain that any faults discovered are
attributable to the variable speed drive rather than the connected motor.
Check/Test Description
1. Monitor the motor output terminals using a suitable multimeter
MANUAL operation
which is also capable of measuring PWM voltages.
2. Use an IOP and select "Manual" mode via the appropriate button.
3. Stop the drive with the I and O buttons.
4. Start the drive.
5. Once the test has been completed, reset the operating mode to
"AUTO".
You can change the output voltage or the speed with the button on the
IOP. "Backwards" can be enabled using the "Control" menu on the IOP.
1. Monitor the motor output terminals using a suitable multimeter
AUTO mode
which is also capable of measuring PWM voltages.
2. Ask a competent operator to isolate the drive.
3. Ensure that all stop/start functions, etc. are working properly.
The output voltage rises in accordance with the requested higher speed
until a maximum close to the line voltage is reached unless this value is
limited by the system settings. All three phases should exhibit a similar
value.
IOP diagnostics
The following procedures are designed to test the wiring. They ensure that the
correct signals reach the drive.
If this reveals that the control wiring is correct, either the drive is defective or the
configuration is incorrect.
Check/Test Description
1. Switch the digital signals in the menu "Diagnostics / I/O state /
IOP diagnostics –
Digital inputs state".
digital inputs
2. Watch the display on the IOP.
1. Change the drive state in the menu "Diagnostics / I/O state / Digital
IOP diagnostics –
outputs state".
digital outputs
2. Watch the display on the IOP.
1. Change the analog signal value in the menu "Diagnostics / I/O state
IOP diagnostics –
/ Analog inputs state".
analog inputs
2. Watch the display on the IOP.
1. Change the drive state in the menu "Diagnostics / I/O state / Digital
IOP diagnostics –
outputs state".
analog outputs
2. Watch the display on the IOP.
Service, maintenance and fault rectification
Fault rectification
8
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2016-03-17