7-9 Excess Start Time-2
Range:
Function:
Excess start time is the maximum time the MCD 500 will attempt to start the motor. If the motor
does not reach full speed within the programmed limit, the starter will trip. Set for a period slightly
longer than required for a normal healthy start. A setting of 0 disables excess start time protection.
20 secs*
[0:00 - 4:00 (min:secs)]
Set the excess time for the secondary motor.
7-10 Stop Mode-2
Option:
Function:
Selects the stop mode for the secondary motor.
Coast to Stop
*
TVR Soft Stop
Adaptive Control
Brake
7-11 Stop Time-2
Range:
Function:
0 secs*
[0:00 - 4:00 (min:secs)]
Sets the time for soft stopping the motor using timed voltage ramp or Adaptive Control (AAC). If a
main contactor is installed, the contactor must remain closed until the end of the stop time. Use a
programmable output configured to Run to control the main contactor. Sets the toal stopping time
when using brake.
7-12 Adaptv Ctrl Gain-2
Range:
Function:
75%*
[1% - 200%]
Adjusts the performance of AAC adaptive acceleration control.
We recommend leaving the gain setting at the default level unless AAC perform-
ance is not satisfactory.
If the motor accelerates or decelerates quickly at the end of a start or stop, in-
crease the gain by setting by 5% - 10%. If the motor speed fluctuates during
starting or stopping, decrease the gain setting slightly.
7-13 Adptv Start Profile-2
Option:
Function:
Selects which profile the MCD 500 will use for an AAC adaptive acceleration control soft start.
Early Acceleration
Constant Acceleration
*
Late Acceleration
7-14 Adptv Stop Profile-2
Option:
Function:
Selects which profile the MCD 500 will use for an AAC adaptive acceleration control soft stop.
Early Deceleration
Constant Deceleration
*
Late Acceleration
7-15 Brake Torque-2
Range:
Function:
20%*
[20 - 100%]
Sets the amount of brake torque the MCD 500 will use to slow the motor.
MCD 500 Operating Instruction
7 Programming
MG.17.K2.02 - VLT
®
is a registered Danfoss trademark
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