Operation; Control Methods - Danfoss vlt soft starter mcd 500 Operating Manual

Operation

6 Operation

6.1 Control Methods

®
The VLT Soft Starter MCD 500 can be controlled:
•
Via the control keys on the LCP (local control).
•
Via the remote inputs (remote control).
•
Via the serial communication network.
•
Local control is only available in hand-on mode.
•
Remote control is only available in auto-on mode.
•
Control via the serial communication network is always disabled in hand-on mode. Enable or disable start/stop
commands via the serial network in auto-on mode by changing the setting of 3-2 Comms in Remote.
The MCD 500 can also be configured to autostart or autostop. Auto-start/stop operation is only available in auto-on mode.
In hand-on mode, the soft starter ignores any auto start/stop setting. To configure auto start/stop operation, set parameters
5-1 to 5-4.
To switch between hand-on mode and auto-on mode, press the keys on the LCP.
•
[Hand On]: Start the motor and enter hand-on mode.
•
[Off]: Stop the motor and enter hand-on mode.
•
[Auto On]: Set the soft starter to auto-on mode.
•
[Reset]: Reset a trip (hand-on mode only).
The MCD 500 can also be set to allow local control only or remote control only, using parameter 3-1 Local/Remote.
If parameter 3-1 Local/Remote is set to Remote Control Only, the [Off] key is disabled. Stop the motor by remote control or via
the serial communication network.
To soft start the motor.
To stop the motor.
To reset a trip on the soft starter.
Autostart/stop operation.
Table 6.1 Start, Stop, and Reset in Hand-on Mode and Auto-on Mode
To stop the motor with a coast to stop, regardless of the setting in parameter 1-10 Stop Mode, press [Off] and [Reset] at the
same time. The soft starter removes power from the motor and opens the main contactor, and the motor coasts to stop.
NOTICE
Brake and jog functions operate only with in-line connected motors (see chapter 5.6 Inside Delta Operation).
MG17K602
Operating Guide
Hand-on mode
Press [Hand On] on the LCP.
Press [Off] on the LCP.
Press [Reset] on the LCP.
Disabled.
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Auto-on mode
Activate the Start remote input.
Activate the Stop remote input.
Activate the Reset remote input.
Enabled.
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