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7.4 Primary Motor Settings
NOTE
Default settings are marked with
*
.
The parameters in Primary Motors Settings configure the
soft starter to match the connected motor. These
parameters describe the motor's operating characteristics
and allow the soft starter to model the motor's
temperature.
1-1 Motor FLC
Option:
Function:
Model
dependent
Matches the starter to the connected motor's
full load current. Set to the full load current
(FLC) rating shown on the motor nameplate.
1-2 Locked Rotor Time
Range:
Function:
10 secs
*
[0:01 - 2:00
(min:sec)]
Sets the maximum length of the time
the motor can run at locked rotor
current from cold before reaching its
maximum temperature. Set according
to the motor datasheet.
If this information is not available, we
recommend the value should be less
than 20 seconds.
1-3 Start Mode
Option:
Function:
Selects the soft start mode. See
for more details.
Constant Current
*
Adaptive Control
1-4 Current Limit
Range:
Function:
350%
*
[100% -
600% FLC]
Sets the current limit for constant current
and current ramp soft starting, as a
percentage of motor full load current.
See
for more details.
1-5 Initial Current
Range:
Function:
350%
*
[100% -
600% FLC]
Sets the initial start current level for current
ramp starting, as a percentage of motor full
load current. Set so that the motor begins to
accelerate immediately after a start is
initiated.
If current ramp starting is not required, set
the initial current equal to the current limit.
See
for more details.
1-6 Start Ramp Time
Range:
Function:
10 secs
*
[1 - 180
secs]
Sets the total start time for an AAC
Adaptive Control start or the ramp time
for current ramp starting (from the initial
current to the current limit). See
for more details.
1-7 Kickstart Level
Range:
Function:
500%
*
[100% -
700% FLC]
Sets the level of the kickstart current.
CAUTION
Kickstart subjects the mechanical
equipment to increased torque levels.
Ensure the motor, load and couplings
can handle the additional torque
before using this feature.
1-8 Kickstart Time
Range:
Function:
0000
msecs
*
[0 - 2000
msecs]
Sets the kickstart duration. A setting of 0
disables kickstart. See
for more details.
CAUTION
Kickstart subjects the mechanical
equipment to increased torque
levels. Ensure the motor, load and
couplings can handle the additional
torque before using this feature.
1-9 Excess Start Time
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 as required.
1-10 Stop Mode
Option:
Function:
Selects the stop mode. See
for more details.
Coast to Stop
*
TVR Soft Stop
Programming
MCD 500 Operating Instruction
MG17K402 - VLT
®
is a registered Danfoss trademark
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