Brake; Protection - Danfoss vlt soft starter mcd 500 Operating Manual

Parameter Descriptions
1-9 Excess Start Time
Range: Function:
Excess start time is the maximum time the
®
VLT Soft Starter MCD 500 attempts to start
the motor. If the motor does not reach full
speed within the programmed limit, the soft
starter trips. Set for a period slightly longer
than required for a normal healthy start. A
setting of 0 disables excess start time

protection.

20 [0:00– Set as required.
s 4:00
*
(min:s)]
1-10 Stop Mode
Option: Function:
Selects the stop mode. See
chapter 5.4 Stopping Modes for more details.
Coast to stop*
TVR soft stop
Adaptive control

Brake

1-11 Stop Time
Range: Function:
0 [0:00– Sets the time for soft stopping the motor using
s 4:00 timed voltage ramp or adaptive control. If a main
*
(min:s)] contactor is installed, the contactor must remain
closed until the end of the stop time. To control
the main contactor, use a programmable output
configured to Run. Sets the total stopping time
when using brake. See chapter 5.4 Stopping
Modes for more details.
1-12 Adaptive Control Gain
Range: Function:
75% [1–200%] Adjusts the performance of adaptive control.
*
This setting affects both starting and stopping
control.
NOTICE
Leave the gain setting at the default
level unless adaptive control
performance is not satisfactory. If the
motor accelerates or decelerates too
quickly at the end of a start or stop,
increase the gain setting by 5–10%. If
the motor speed fluctuates during
starting or stopping, decrease the gain
setting slightly.
1-13 Adaptive Start Profile
Option: Function:
Selects which profile the soft starter uses
for an adaptive control soft start. See
chapter 5.4 Stopping Modes for more
details.
MG17K602
Operating Guide
1-13 Adaptive Start Profile
Option:
Early acceleration
Constant
acceleration*
Late acceleration
1-14 Adaptive Stop Profile
Option:
Early deceleration
Constant
deceleration*
Late acceleration
8.1.1 Brake
Brake uses DC injection to slow the motor actively. See
chapter 5.4 Stopping Modes for more details.
1-15 Brake Torque
Range:
20%
*
1-16 Brake Time
Range:
1 s [1–30 s] Sets the duration for DC injection during a
*
8.2 Protection
2-1 Phase Sequence
Option:
Any sequence*
Positive only
Negative only
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Function:
Function:
Selects which profile the soft starter uses
for an adaptive control soft stop. See
chapter 5.4 Stopping Modes for more
details.
Function:
[20–100%] Sets the amount of brake torque the soft
starter uses to slow the motor.
Function:
braking stop.
NOTICE
This parameter is used with parameter
1-11 Stop Time. See chapter 5.4 Stopping
Modes for details.
Function:
Selects which phase sequences the soft starter
allows at a start. During its prestart checks, the
soft starter examines the sequence of the
phases at its input terminals. If the actual
sequence does not match the selected option,
the soft starter trips.
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