Table 3 - Run Messages; Table 4 - Mbc Startup Messages; Table 5 - Start Inhibit Messages - York OPTIVIEW Operation Manual

FORM 160.78-O2
ISSUE DATE: 5/22/2017

TABLE 3 - RUN MESSAGES

MESSAGE
LEAVING CHILLED LIQUID
CONTROL
WARNING – VSD DC BUS
ACTIVE
VSD – HIGH INPUT CURRENT
LIMIT
VSD – INPUT PULLDOWN LIMIT

TABLE 4 - MBC STARTUP MESSAGES

MESSAGE
WAITING FOR CHILLED
LIQUID FLOW
WAITING FOR MBC
LEVITATION
WAITING FOR VSD
PREREGULATION

TABLE 5 - START INHIBIT MESSAGES

MESSAGE
ANTI-RECYCLE XXMIN/SEC
LINE FREQUENCY NOT SET
LINE VOLTAGE NOT SET
PRV NOT CALIBRATED
VGD NOT CALIBRATED
JOHNSON CONTROLS
The chiller is running, controlling the Leaving Chilled Liquid to the Leaving Chilled Liquid
Temperature Setpoint. There are no system conditions inhibiting this operation.
This non-annunciating message alerts that the DC Bus is precharged or pre-regulated
for a state outside of chiller run. It is set when the VSD indicates a precharge or pre-
regulated state or DC Bus voltage >50v in the stopped state. A countdown timer shows
with this message to indicate the time remaining in a precharge or pre-regulate com-
mand while stopped.
The Chiller Input current is greater than or equal to the Active Current Limit Setpoint.
The Current Limit Setpoint is programmed over a range of 30 to 100% of the Chiller
Full Load Amps (FLA). The Active limit is the minimum of the Local, pulldown (if active),
and Remote Current Limit Setpoints in Remote mode or the remote value in BAS (ISN)
mode. While this condition is in effect, chiller capacity control is in override to reduce
current. Normal LCHLT capacity control operation is resumed and this message auto-
matically clears when the input current decreases below this limit.
The highest of the three phase input currents divided by the programmed Job Input FLA
is compared to the limit for this override.
The chiller input current will be limited by the pulldown demand limit setpoint. The mes-
sage clears when the pulldown demand time expires.
The chilled liquid flow switch input is not reading voltage indicating the presence of
chilled liquid flow from the flow switch. Indication of chilled liquid flow is required during
the MBC Startup state to allow transition to chiller run.
The OptiView has issued a MBC Levitate command to the MBC and is waiting for
confirmation from the MBC that De-levitated mode is OFF, Levitated mode is ON, and
the input from the digital Rotation Allowed contacts on the MBC is high at OptiView I/O
board terminal TB3-30. This message precedes "Waiting for Chilled Liquid Flow".
The OptiView has issued a VSD Pre-Charge/Pre-Regulate command to the VSD and is
waiting for confirmation from the VSD that it has achieved regulated DC bus voltage and
is awaiting a run command. this message precedes "Waiting for MBC Levitation".
The chiller is inhibited from starting because the anti-recycle time has not yet elapsed.
Time remaining is displayed. A 15 second delay exists from Stop to Start.
This start inhibit is set when the Line Voltage setpoint is "INVALID". Line Frequency is
set invalid on a new or cleared BRAM until programmed.
This start inhibit is set when the Line Voltage setpoint is "INVALID". Line Voltage is set
invalid on a new or cleared BRAM until programmed.
The Pre-rotation vanes calibration procedure has not yet been performed.
The Variable Geometry Diffuser calibration procedure has NOT yet been performed.
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
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