Johnson Controls YORK OPTIVIEW CONTROL CENTER, Руководство по эксплуатации

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JOHNSON CONTROLS
106
FORM 160.10-O1
ISSUE DATE: 4/27/2018
SECTION 3 - OPTIVIEW DISPLAY MESSAGES
Starter – High Supply Line Voltage
This message indicates that a voltage for a phase is
greater than the allowable limit for more than twenty
(20) seconds. This fault can occur at chiller startup or
after the chiller has been running for one minute. The
fault is released when the voltage for the phase falls
below the limit when starting. Refer to
Table 6.
TABLE 6 - STARTER - HIGH SUPPLY LINE
VOLTAGE LIMITS
SUPPLY
VOLTAGE
LIMIT
STARTING
LIMIT
RUNNING
200 - 208 Volts 226 V 227 V
220 - 240 Volts 261 V 262 V
380 Volts 414 V 415 V
400 Volts 435 V 436 V
415 Volts 453 V 454 V
440 - 480 Volts 523 V 524 V
550 - 600 Volts 654 V 655 V
Motor Controller – Loss Of Current
This message indicates that compressor motor current
decreased to 10% Full Load Amps (FLA) for 25 con-
tinuous seconds while the chiller was running. This
may be caused by the starter de-energizing during run
or a defect in the motor current feedback circuitry to
the control center. The chiller will automatically restart
at the completion of SYSTEM COASTDOWN.
Power Fault
This message indicates the CM-2 current module (Electro-
mechanical starter applications) has shutdown the chiller
because a fault condition that places the chiller motor at
risk has been detected. This device opens and closes the
motor controller CM contacts (located on the CM-2 board
and connected between TB6-16 and TB6-53 in the Con-
trol Center) in less than three (3) seconds to initiate the
shutdown and produce this message. One of three LEDs
on the device will illuminate to identify the specific fault
that has occurred. Refer to the OptiView Control Center
Retrofit Kit - Trane Service Manual (Form 160.10-M1)
for CM-2 initiated shutdown details. The chiller will au-
tomatically restart when the contacts close.
Control Panel – Schedule
The programmed daily schedule setpoint has shutdown
the chiller. Prior to shutdown, the pre-rotation vanes
are driven fully closed. The chiller will automatically
restart at the next scheduled start time.
MOD B SOLID STATE STARTER CYCLING
SHUTDOWN MESSAGES
LCSSS Initialization Failed
When power is restored to the system after a power
failure, an initialization process occurs wherein the
control center attempts to establish a link with the Liq-
uid Cooled Solid State Starter (LCSSS) through serial
communications If communications are not established
within 10 consecutive attempts, a Cycling Shutdown is
performed and this message is displayed. The control
center attempts to establish communications until suc-
cessful.
LCSSS – Serial Communications
After communications have been successfully estab-
lished in the INITIALIZATION process, the OptiView
Control Center transmits to the solid state starter on the
serial communications link every two (2) seconds. Af-
ter these communications have been established, if the
control center does not receive a reply within ten (10)
consecutive attempts, a cycling shutdown is performed
and this message is displayed. This same cycling shut-
down is performed, along with the same message, if
the solid state starter does not receive a response from
the control center after ten (10) consecutive attempts
to communicate with the control center. The control
center will attempt to establish communications until
successful.
LCSSS SHUTDOWN – REQUESTING FAULT
DATA...
The liquid cooled state starter logic/trigger board has
shut down the chiller but the OptiView Control Center
has not yet received the cause of the fault from the LC-
SSS, via the serial communications link. The LCSSS
shuts down the chiller by opening the motor control-
ler lcsss stop contacts (K1 relay located on the starter
logic/trigger board and connected between TB6-16 and
TB6-53 in the control center). The control center mi-
croboard then sends a request for the cause of the fault
to the logic/trigger board over the serial communica-
tions link. Since serial communications are initiated
every two (2) seconds, this message is typically dis-
played for a few seconds and then replaced with one of
the following fault messages.
LCSSS – STOP CONTACTS OPEN
Refer to LCSSS SHUTDOWN – REQUESTING
FAULT DATA ... described previously. If the Con-
trol Center’s Microboard does not receive the cause