AuCom EMX3-1600C - Parameter Descriptions

PROGRAMMING MENU
10.8 Parameter Descriptions
1 Motor Data-1
The parameters in Motor Data-1 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.
NOTE
When connecting in inside delta, enter the motor full load current (FLC) for parameter 1A. The EMX3 will automatically
detect whether the motor is connected in-line or inside delta and will calculate the correct inside delta current level.
1A – Motor FLC
Range:
Model dependent
Description:
Matches the starter to the connected motor's full load current. Set to the full load current (FLC) rating shown on
the motor nameplate.
1B – Locked Rotor Time
Range:
0:01 - 2:00 (minutes:seconds)
Default:
10 seconds
Description:
Sets the maximum length of time the motor can sustain locked rotor current from cold before reaching its
maximum temperature. Set according to the motor datasheet.
1C – Locked Rotor Current
Range:
400% - 1200% FLC
Default:
600%
Description:
Sets the locked rotor current of the connected motor, as a percentage of full load current. Set according to the
motor datasheet.
1D – Motor Service Factor
Range:
100% - 130%
Default:
105%
Description:
Sets the motor service factor used by the thermal model. If the motor runs at full load current, it will reach
100%. Set according to the motor datasheet.
NOTE
Parameters 1B, 1C and 1D determine the trip current for motor overload protection. The default settings of parameters
1B, 1C and 1D provide Motor Overload Protection: Class 10, Trip Current 105% of FLA (full load amperage) or equivalent.
2 Start/Stop Modes-1
2A – Start Mode
Options:
Constant Current (default)
Adaptive Control
Description:
Selects the soft start mode.
2B – Start Ramp Time
Range:
1 - 180 (seconds)
Default:
10 seconds
Description:
Sets the total start time for an Adaptive Control start or the ramp time for current ramp starting (from the initial
current to the current limit).
2C – Initial Current
Range:
100% - 600% FLC
Default:
350%
Description:
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.
2D – Current Limit
Range:
100% - 600% FLC
Default:
350%
Description:
Sets the current limit for constant current and current ramp soft starting, as a percentage of motor full load
current.
46 | User Manual (710-04840-00M)