Parker -W4P, User Manual

Page: 24 / 110

24
MSC4000 - MSC15000 USER MANUAL
These settings are to be changed only by the Dryer Manufacturer’s Factory or Service Personnel and are included
here for reference only.
Caution: Changes to these settings may result in unstable dryer response.
Factory Settings – Variable Speed Drive
Number of Compressor (F) – The controller can
accommodate up to four compressors
Dewpoint (M) – Set the target dew point from 36 to 50
degrees F. The dryer will attempt to regulate the dew-
point around this value.
Use the following to adjust the response of the variable
speed drive based on the actual dewpoint and the target
dewpoint setting -
PID Gain (F) – Use this to adjust the proportional
response of the dryer.
PID Reset Time (F) – Use this to adjust the integral
response of the dryer.
PID Filter TC (F) – Use this to filter the dewpoint input.
PID Max Suction TC (F) – This setting sets the upper
suction pressure limit for the dryer. The controller will at-
tempt to keep the pressure below this limit by reducing
the speed of the compressor.
Warning! Logging in using the Service or Factory
password may result in access to settings that, if
improperly set, could negatively affect the
operation and health of the dryer. Damage resulting
as a result of improper settings by persons other
than a qualified manufacturer representative may
affect dryer warranty.
State Indicators – Indicators for the refrigeration
outputs to assist in troubleshooting
Dewpoint vs VSD output real-time graph – 1 hour of
real-time data shows correlation of changes in dewpoint
to the speed of the compressor.
M Supervisor level access required
F Factory level access required