Technical information

5 – PARAMETER DESCRIPTIONS
41
P1 Motor FLA QST 01
LCD Display
QST: Motor FLA
01 10 Amp
Range Model dependent, 1 to 6400 Amps RMS (Default 10A)
Description The Motor FLA parameter configures the motor full load amps, and is obtained from the nameplate
on the attached motor.
If multiple motors are connected, the FLA of each motor must be added together for this value.
NOTE: Incorrectly setting this parameter prevents proper operation of the motor overload
protection, motor over current protection, motor undercurrent protection, ground fault protection and
acceleration control.
P2 Motor Service Factor QST 02
LCD Display
QST: Motor SF
02 1.15
Range 1.00 – 1.99 (Default 1.15)
Description The Motor Service Factor parameter should be set to the service factor of the motor. The service
factor is used for the overload calculations. If the service factor of the motor is not known, then the
service factor should be set to 1.00.
NOTE: The NEC (National Electrical Code) does not allow the service factor to be set above 1.40.
Check with other local electrical codes for their requirements.
The National Electrical Code, article 430 Part C, allows for different overload multiplier factors
depending on the motor and operating conditions. NEC section 430-32 outlines the allowable service
factor for different motors.
See Also Theory of Operation section 8.2, Motor Service Factor, on page 117