McQuay WSC User Manual

86 OM Centrif Micro ΙΙ-5
Quick Start
Motor FLA
Parameter Description
The motor FLA parameter must be set to the full load amps of the motor connected to the starter
for the starter to function correctly.
NOTE: The starter uses the entered motor FLA for every current based calculation. If the motor
FLA is not entered correctly, the current ramp profile and many of the starter’s advanced
protection features will not function properly.
Parameter Values
The motor FLA parameter is adjustable from 1 to 1200 amps in 1-amp increments.
Parameter Default
The default value for the motor FLA is 1 amp.
Serv. Fact (Service Factor)
Description
The service factor parameter should be set to the service factor of the motor. The service factor is
used for the overload calculations. The service factor is factory set, will be checked by the start-up
technician and should not require further adjustment. If the service factor of the motor is not
known, then the service factor should be set to 1.00.
Values
The service factor can be set from 1.00 to 1.99, in 0.01 increments.
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.
Default
The default value for the service factor is 1.15.
Start Mode
Description
The Start Mode parameter allows for an optimal start of the motor based on the application. For a
description of the possible Start Mode parameters, refer to page 31 in the Operations chapter.
Values
The Start Mode Parameter can be set to Curr, TT, or Tach.
Default
The default value for the Start Mode is Curr.
Stop Mode
Description
The Stop Mode parameter allows for the most suitable stop of the motor based on the application.
For a description of the possible Stop Mode parameters, refer to page 31 in the Operations chapter
of the starter manual.
Values
The Stop Mode can be set to Coas, VDCL, or TT.
Default
The default value for the Stop Mode is Coas.
Int. Curr. (initial current)
Description
The initial current parameter is set as a percentage of the motor FLA parameter setting. The initial
current parameter sets the current that will initially reach the motor when a start is commanded.

McQuay WSC Specifications

General

Brand	McQuay
Model	WSC
Category	Controller
Language	English