Outputs; Relay A Delays; Relays B And C - Danfoss mcd-500 Operating Instruction

7 Programming

7.8 Outputs

4-1 Relay A Function
Option:
Off
Main Contactor*
Run
Trip
Warning
Low Current Flag
High Current Flag
Motor Temp Flag

7.8.1 Relay A Delays

7
The MCD 500 can be configured to wait before opening or closing Relay A.
4-2 Relay A On Delay
Range:
0 secs* [0:00 - 5:00 (min:secs)]
4-3 Relay A Off Delay
Range:
0 secs* [0:00 - 5:00 (min:secs)]

7.8.2 Relays B and C

Parameters 4-4 to 4-9 configure the operation of Relays B and C in the same way as parameters 4-1 to 4-3 configure Relay A.
4-4 Relay B Function
Option:
Off
Main Contactor
Run*
Trip
Warning
Low Current Flag
High Current Flag
Motor Temp Flag
4-5 Relay B On Delay
Range:
0 secs* [0:00 - 5:00 (min:secs)]
66
Function:
Selects the function of Relay A (normally open).
Relay A is not used
The relay closes when the MCD 500 receives a start command, and remains closed as long as the
motor is receiving voltage.
The relay closes when the starter changes to run state.
The relay closes when the starter trips.
The relay closes when the starter issues a warning.
The relay closes when the low current flag activates (Par. 4-10
The relay closes when the high current flag activates (Par. 4-11
The relay closes when the motor temperature flag activates (Par. 4-12
Function:
Sets the delay for closing Relay A.
Function:
Sets the delay for re-opening Relay A.
Function:
Selects the function of Relay B (changeover).
Relay B is not used
The relay closes when the MCD 500 receives a start command, and remains closed as long as the
motor is receiving voltage.
The relay closes when the starter changes to run state.
The relay closes when the starter trips.
The relay closes when the starter issues a warning.
The relay closes when the low current flag activates (Par. 4-10
The relay closes when the high current flag activates (Par. 4-11
The relay closes when the motor temperature flag activates (Par. 4-12
Function:
Sets the delay for closing Relay B.
MG.17.K2.02 - VLT ® is a registered Danfoss trademark
MCD 500 Operating Instruction
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High Current Flag
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Motor Temperature Flag
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