Frick QUANTUM - Control Setup - Motor Control Setpoints Screen

FRICK QUANTUM CONTROL PANEL
OPERATION
S90-010 O
Page 23
CONTROL SETUP - ”MOTOR CONTROL SETPOINTS” SCREEN
The following information should be recorded from the mo-
tor nameplate:
• Motor Amps
• Volts
• Service Factor - Note: Not required if using DBS Delta.
• Horse Power
• CT Factor - The Current Transformer Factor is printed
on the current transformer in the compressor motor
starter. Note: Not required if using DBS Delta.
To verify that the CT has been sized properly, use the
following equation:
CTF = FLA (Full Load Amps) x Service Factor x 1.1 =
Recommended CT (Round up to next highest 100
Amps)
EXAMPLE: FLA = 182 Amps
SF = 1.0
CTF = (182 x 1.0 x 1.1) = 200.2 > Round
up to 300 [use 300:5 CT]
The following setpoint is required for safe motor operation:
Recycle delay - Each time the compressor is started,
this value will be loaded into the Recycle Delay timer.
This time must elapse prior to allowing the compressor
to restart. The timer will time out while the compressor is
running or stopped since the Recycle Delay is a start-to-
start protection. The Recycle Delay time is intended to
prevent damage to the motor from successive restarts.
NOTE: Consult Motor Manufacturer for the recommended
duration of the Recycle Delay.
The following setpoints are required for Motor Amps load
control:
High Motor Amps Stop Load - The compressor slide
valve will be prevented from loading until the Motor
Amps is less than this setpoint.
Typical: Motor Amps Stop Load = FLA x 100%
High Motor Amps Force Unload - When the Motor Amps
is greater than or equal to this setpoint, the compressor
Slide Valve will be forced to unload until the Motor Amps
is less than 1% of this setpoint.
Typical: Motor Amps Force Unload = FLA x 105%
High Motor Amps Alarm - If the Motor Amps is greater
than or equal to this setpoint, for the alarm time delay,
an alarm occurs.
High Motor Amps Shutdown - If the Motor Amps is
greater than or equal to this setpoint, for the shutdown
time delay, the compressor will shut down.
High Motor Amps Alarm Delay - The minimum time in
seconds that the Motor Amps is greater than or equal to
the high Motor Amps alarm setpoint before notification
of the alarm.
High Motor Amps Shutdown Delay - The minimum
time in seconds that the Motor Amps is greater than or
equal to the “High Motor Amps Shutdown” setpoint be-
fore the compressor will shut down.
Low Motor Amps Shutdown - This setpoint is used to
determine if the coupling has broken. If the Motor Amps is
less than or equal to this setpoint, for the shutdown time
delay, the compressor will shut down.