JOHNSON CONTROLS
41
FORM 160.00-O4
ISSUE DATE: 07/31/2019
5
GENERAL INFORMATION
A WARNING message will indicate that the operation
of the OptiSpeed Compressor Drive or the Harmonic
Filter is affected in some manner but the OptiSpeed
Compressor Drive is still functioning.
TABLE 5 - WARNING MESSAGES
WARNING DESCRIPTION
Warning - Vanes
Uncalibrated - Fixed Speed
This message is displayed when the Pre-Rotation Vanes are not calibrated or
have failed to calibrate, and the OptiSpeed Compressor Drive is enabled. Under
this condition the OSCD will run at a constant maximum speed. This message will
no longer appear after a successful calibration.
Warning - Harmonic Filter -
Data Loss
FILTER - DATA LOSS
This message is displayed if the communications link between the OSCD logic,
and the harmonic lter logic, or the ACC boards are interrupted for at least a peri-
od of 20 seconds. This message can also occur as a background message when
the chiller is running. When this message is displayed all harmonic lter related
values are replaced with X’s. If communications is re-established, the message
will disappear, and normal values will again be displayed.
Warning - Harmonic Filter -
Operation Inhibited
FILTER - OPERATION
INHIBITED
This message is displayed when the function of the Harmonic Filter is inhibited
at the Control Center. This message is no longer displayed when the function of
the Harmonic Filter is enabled at the Control Center. The function of the harmonic
lter can only be inhibited or turned on when the chiller is not running.
SECTION 5 - WARNING MESSAGES
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