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VACON® 1000
Operating Guide
2.
Send the start command.
-
HMI: Press the START button.
-
Digital: Start the equipment through DCS digital signal.
-
Communication: Start the drive through communication.
8.5.3 Stopping the Drive
The procedure for stopping the drive depends on the selected operation mode.
•
HMI: In the control panel, select Ramp or Coast, and press the STOP button. The drive stops according to the corresponding stop
mode, while the main circuit breaker is still closed.
•
Digital: Stop the drive through DCS digital signal.
•
Communication: Stop the drive through communication.
Two different stop modes are possible: Ramp stop and coast stop.
Ramp stop
•
The drive stops the motor according to the preset deceleration time. For setting the decelerated stop time, see the VACON®
1000 Application Guide.
Coast stop
•
The drive stops the voltage output, and the motor rotates freely and decelerates gradually through the load and friction until it
stops.
•
Consider carefully according to the operation condition whether the motor is allowed to stop freely.
SHOCK HAZARD
During a coast stop, there can still be voltage in the motor cables due to the back EMF generated by the motor. Contact with this
voltage can lead to death or serious injury.
-
Do not touch the motor terminals or cables when the drive is connected to mains.
8.5.4 Powering Off the Drive
SHOCK HAZARD
The terminals and the components of the drive can be live several minutes after the drive is disconnected from the mains and the
motor has stopped. The load side of the drive can also generate voltage. A contact with this voltage can lead to death or serious
injury.
-
Keep the cabinet doors closed for 15 minutes after the high voltage is cut off.
Procedure
1.
Stop the drive. See
8.5.3 Stopping the
2.
Command the input high-voltage breaker to open.
3.
If a bypass cabinet is installed, disconnect the input and output isolation switch.
4.
After the power cells finish discharging, power off the control power.
-
Do not cut off the control power when the drive is powered on or the LED indicators of the power cells are on.
Danfoss A/S © 2021.06
D A N G E R
D A N G E R
Drive.
C A U T I O N
Commissioning
AQ363633621020en-000201 / 172F3117 | 77
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