1-10 Stop Mode
Option:
Function:
Adaptive Control
Brake
1-11 Stop Time
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.
See
for more details.
1-12 Adaptive Control Gain
Range:
Function:
75%
*
[1% -
200%]
Adjusts the performance of AAC adaptive
acceleration control. This setting affects both
starting and stopping control.
NOTE
We recommend leaving the gain setting
at the default level unless AAC
performance is not satisfactory. If the
motor accelerates or decelerates 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 MCD 500 will
use for an AAC adaptive acceleration
control soft start. See
for more details.
Early Acceleration
Constant Acceleration
*
Late Acceleration
1-14 Adaptive Stop Profile
Option:
Function:
Selects which profile the MCD 500 will
use for an AAC adaptive acceleration
control soft stop. See
for more details.
Early Deceleration
Constant Deceleration
*
Late Acceleration
7.4.1 Brake
Brake uses DC injection to actively slow the motor. See
for more details.
1-15 Brake Torque
Range:
Function:
20%
*
[20 - 100%] Sets the amount of brake torque the MCD
500 will use to slow the motor.
1-16 Brake Time
Range:
Function:
1 sec
*
[1 - 30 secs] Sets the duration for DC injection during a
braking stop.
NOTE
This parameter is used in conjunction
with
1-11 Stop Time
. See for details.
7.5 Protection
2-1 Phase Sequence
Option:
Function:
Selects which phase sequences the soft starter
will allow at a start. During its pre-start checks,
the starter examines the sequence of the
phases at its input terminals and trips of the
actual sequence does not match the selected
option.
Any sequence
*
Positive only
Negative only
7.5.1 Current Imbalance
The MCD 500 can be configured to trip if the currents on
the three phases vary from each other by more than a
specified amount. The imbalance is calculated as the
difference between the highest and lowest currents on all
three phases, as a percentage of the highest current.
Current imbalance detection is desensitised by 50% during
starting and soft stopping.
2-2 Current Imbalance
Range:
Function:
30%
*
[10% - 50%] Sets the trip point for current imbalance
protection.
2-3 Current Imbalance Delay
Range:
Function:
3 secs
*
[0:00 - 4:00
(min:secs)]
Slows the MCD 500's response to
current imbalance, avoiding trips
due to momentary fluctuations.
Programming
MCD 500 Operating Instruction
56
MG17K402 - VLT
®
is a registered Danfoss trademark
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