Sullair 02250165-411 R01, Руководство пользователя

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SECTION 6 WS CONTROLLER USER INTERFACE MANUAL
41
VSD STATUS
In addition to the general status messages displayed
on the WS Controller, two status messages will
display to indicate, a) the temperature variable speed
drive, and b) the delivery capacity of the variable
speed package. The display indications are shown
as:
VSD Temperature - High temperatures usually
indicate a need for cleaning of the VSD fan or heat
sink by a trained service technician.
VSD Capacity % - This is displayed as an
approximate percentage of the maximum capacity for
the package.
VSD CONTROL PARAMETERS
In addition to the general control parameters
described in
Section 4: Description on page 19, a
VSD specific parameter can be adjusted at the WS
Controller keypad to control VSD operation. The
VSD control parameter is shown as:
VSD Setpoint Pressure – This is the targeted
pressure (psi, bar, or kpa) for the variable speed
controls. The setpoint pressure is normally adjusted
near the bottom of the load/unload delta. The
compressor speed will be adjusted to maintain this
pressure. Most packages will allow adjustment of
this parameter over a wide range, to allow tailoring to
the needs of the application. Adjustments will be
automatically made as the maximum speed to
operate the motor at its full capacity at any pressure.
WSPC I
NTERFACE
A
PPLICATION
- VSD
The WSPC Interface is a PC application that allows
the user to monitor, control, and modify the
compressor operation. It provides functionality not
available via the WS Controller panel. Refer to the
WSPC User Interface manual for details on
controlling and modifying the VSD package
performance using the WSPC application.
An additional warning message is provided when
monitoring indicates a need for drive service:
VFD O
VERTEMP
The internal temperature of the drive exceeds normal
operating temperatures. Check for the correct
volume and unrestricted flow of cooling air. Check
the heatsink for dust or dirt buildup. Check the
highest ambient temperature level.