CHAPTER 8 – OPERATION 126
8.4 Overview of local operator
panel
The operator panel on the control compartment door enables the
operator to control the drive without restrictions provided that all
requirements for normal operation are met.
The functions of the operator panel include:
• Connecting / disconnecting the main power
supply
• Setting the reference value
• Starting, stopping the drive
• Displaying:
-Actual values
- Status messages
- Alarm and fault messages
• Viewing, setting parameters
• Resetting alarm and fault messages
• Activating the emergency-off circuit
• Testing the bulbs of lamps and illuminated
pushbuttons
1. CDP control panel
Main functions:
- Starts and stops the motor
-Displays status messages
- Displays alarm and fault messages of the drive and monitored
foreign equipment
- Resets alarm and fault messages
2. Supply ON
Illuminated pushbutton. When pressed, it lights up and turns the
main power supply on (the main circuit breaker closes and the DC
link charges).
3. Supply OFF
Illuminated pushbutton. When pressed, it lights up and turns the
main power supply off (the main circuit breaker opens and the DC
link discharges).
4. Alarm / Fault lamp
- Fault: permanent light
- Alarm: flashing light
5. Grounding Switch Unlocked
Illuminated pushbutton. It lights up if the grounding-switch can be
released by pushing the Grounding Switch Unlocked pushbutton.
Keep this pushbutton pressed to turn the grounding switch to the
grounded or ungrounded position.
Note: This pushbutton also works as a test lamp. To test its func-
tionality, press it and verify that it lights up.
6. Emergency Reset pushbutton (option)
Resets the emergency-off relay of the drive control system
Flashes when the auxiliary voltage is switched on, or when an emer-
gency-off switch is pressed
7. Emergency Off
Latching pushbutton. When pressed during operation of the drive,
the main circuit breaker opens immediately and the DC link dis-
charges.
When pressed at standstill of the drive, it prevents the drive from
starting.
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