York YMC2 - Page 98

JOHNSON CONTROLS
98
FORM 160.84-OM1
ISSUE DATE: 9/21/2017
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
MESSAGE DESCRIPTION
VSD – LOGIC BOARD
PROCESSOR
This shutdown is generated if a communications problem occurs between the two mi-
croprocessors on the VSD Logic Board.
VSD – LOW DC BUS VOLTAGE
This shutdown is generated any time after the pre-regulation state has generated the
correct DC link voltage setpoint and then the DC link voltage drops to a minimum value.
This value is based on the drive model number. Typically, this shutdown will occur when
there is a sudden change in the input voltage due to storms, utility power problems, or
site power problems.
DRIVE MODEL DC LINK VOLTAGE SETPOINT
0490, 0490A, 0612A, 0730A 0774 755
1278A 735
VSD – LOW PHASE A INPUT
BASEPLATE TEMPERATURE
The temperature of the input baseplate phase A has decreased below the low limit of
37°F (2.7°C). All phase temperatures have to increase above the fault-reset threshold of
42°F (5.5°C), for this fault to be cleared. The cooling fans and pumps will turn on while
this shutdown is present. They will turn off when the temperature rises above the fault-
reset threshold.
VSD – LOW PHASE B INPUT
BASEPLATE TEMPERATURE
See “VSD – LOW PHASE A INPUT BASEPLATE TEMPERATURE” message preceding.
VSD – LOW PHASE C INPUT
BASEPLATE TEMPERATURE
See “VSD – LOW PHASE A INPUT BASEPLATE TEMPERATURE” message preceding.
VSD – LOW PHASE A MOTOR
BASEPLATE TEMPERATURE
The OptiView panel will determine this fault when the temperature of the motor base-
plate phase A has decreased below the low limit of 37°F (2.7°C). All phase temperatures
have to increase above the fault-reset threshold of 42°F (5.5°C), for this fault to be
cleared. The cooling fans and pumps will turn on while this shutdown is present. They
will turn off when the temperature rises above the fault-reset threshold.
VSD – LOW PHASE B MOTOR
BASEPLATE TEMPERATURE
See “VSD – LOW PHASE A MOTOR BASEPLATE TEMPERATURE” message preced-
ing.
VSD – LOW PHASE C MOTOR
BASEPLATE TEMPERATURE
See “VSD – LOW PHASE A MOTOR BASEPLATE TEMPERATURE” message preced-
ing.
VSD – NOT RUNNING
The OptiView panel will determine this fault when the VSD has not reported run state
via serial communications for 8 seconds while the microboard issues a VSD run com-
mand. The fault is released when the microboard command is “Stopped State”.
VSD – PHASE A INPUT DCCT
OFFSET
When the VSD begins precharge, the output of the input current Direct Current Cur-
rent Transformers (DCCT) are evaluated to ensure that they are reading zero current
when no current is owing through the DCCT. If the zero current output value is above a
threshold, then this shutdown is generated.
VSD – PHASE B INPUT DCCT
OFFSET
See “VSD – PHASE A INPUT DCCT OFFSET” message preceding.
VSD – PHASE C INPUT DCCT
OFFSET
See “VSD – PHASE A INPUT DCCT OFFSET” message preceding.
VSD – PHASE A INPUT GATE
DRIVER
The gate driver board for the input rectier monitors the power supplies within the gate
driver circuit, and veries that the input rectier can be properly controlled. If the gate
driver monitor determines that the input rectier cannot be properly controlled, then the
drive will shutdown and display this message.
VSD – PHASE B INPUT GATE
DRIVER
See “VSD – PHASE A INPUT GATE DRIVER” message preceding.
VSD – PHASE C INPUT GATE
DRIVER
See “VSD – PHASE A INPUT GATE DRIVER” message preceding.
VSD – PHASE A MOTOR GATE
DRIVER
The gate driver board for the motor inverter monitors the power supplies within the gate
driver circuit, and veries that the input rectier can be properly controlled. If the gate
driver monitor determines that the input rectier cannot be properly controlled, then the
drive will shutdown and display this message.
TABLE 11 - CYCLING SHUTDOWN MESSAGES (CONT'D)