Frick QUANTUM - Page 106

S90-010 O FRICK
®
QUANTUM™ COMPRESSOR CONTROL PANEL
Page 106 OPERATION
No
No
No
Quantum™ Automatic Capacity Control
(Electric, VFD, Engine, Turbine) Version 5.0x
Is
the drive
a constant
electric?
Is capacity
decreasing?
B
Yes
Unload:
- De-Energize Load Solenoid
- Energize Unload Solenoid
Yes
Is Drive Output
< Begin Drive
Increase?
Yes
Is
Cycle Time
expired?
Yes
Unload:
Reduce the Drive Output
to the Idle Setpoint Value
Unload:
Decrease Drive Output proportionally to the Drive Output at Mass Slide Valve
Position* and the current Slide Valve Position
Drive Output =
[ ] + Min Output*
(SVMax* - Min Output*) x SV Position
SV Begins*
Unload:
- De-Energize Load Solenoid
- Energize Unload Solenoid
Is it a
Engine/Turbine
Drive and the
SV is < the SV
Setpoint?
No
Yes
Unload:
Reduce the Drive Output
by the Rate of Change
No
**Slide Valve Only
Force Unloads
- VI OverRide
- Differential
Pressure
- Stopping
- Low RPM
- Manifold Pressure
C
*VFD, Engine, Turbine
Setpoints
Speed Control
- Max Output (1% - 100%)
- Min Output (0% - 100%)
- Rate of Change (0.1% - 25%)
- Cycle Time (0 - 30 sec.)
- Idle (0% - 100%)
Slide Valve Control
- Slide Valve Positive to Begin
Drive
Increase (0% - 100%) [SV Begin]
- Drive Output at Max Slide Valve
Position (0% - 100%) [SV Max]
***Slide Valve
Setpoints
- Highest Slide
Valve Position
to allow starting
the compressor
(0% - 100%)
Is Drive Output
< Min.
Output*?
Yes
Drive Output = Min. Output*
No
Drive Output = Max. Output*
Is Drive Output
> Max.
Output*?
No
Yes