67
Table 11 - Fault description and corrective actions (continued)
VFD
FAULT
CODE
FAULT TYPE
DESCRIPTION
ACTION
ICVC
FAULT
STATE
233
Precharge closed
Precharge was closed when it should be open.
a. Check AUX contacts on precharge.
b. Check input bit 0 in rectifier parameter 216 to view
status of input.
c. Check wiring.
d. Check precharge resistors and fuses.
206
234
Precharge open
Precharge was open when it should be closed.
a. Check AUX contacts on precharge.
b. Check input bit 0 in rectifier parameter 216 to view
status of input.
c. Check wiring.
d. Check precharge resistors and fuses.
206
235
Rctfr Pwr Board
Drive rating information stored on the power board is
incompatible with the Main Control board. The
checksum read from the board does not match the
checksum calculated.
Load compatible version files into drive.
a. Cycle power to the drive.
b. If problem persists, replace drive.
206
236
Rctfr I/O Board
Loss of communication to I/O board. Board failure.
a. Cycle power.
b. If fault repeats, replace I/O board.
206
237
Not at Voltage 4
The rectifier did not regulate to the desired bus voltage
within the defined time.
Replace rectifier power board and/or rectifier control
board.
206
238
Rectfr Not Log In 4
Rectifier took too long to connect to inverter.
a. Check the cabling between the communications
interface and the two control boards.
b. Connect one DPI device at a time to see if one of
the DPI devices is causing the problem.
c. Replace the communications interface.
d. Replace the rectifier control board.
206
239
Power Phased ACB 4
Input power is phased ACB rather than ABC.
Switch two of the input power phases.
206
Fault Type indicates if the fault is:
1 Auto-resettable
2 Non-resettable
3 User-configurable
4 Normal Fault
NOTE:
Reliance parameter numbers are indicated by ( ).
LEGEND
DPI
—
Drive Peripheral Interface
EPROM
—
Erasable, Programmable, Read-Only
FLA
—
Full Load Amps
IGBT
—
Insulated Gate Bipolar Transistor
I/O
—
Inputs/Outputs
NP
—
Nameplate
Fig. 16 - Chiller Control Module (CCM)
J11
Discrete outputs
J12
Discrete outputs
SW1 SIO address
DIP switch set all
to “off”
J1
24 V a.c.
Analogue output
J8
SIO
J7
SW2 V/I input
configuration DIP
switch 1 must
be “off”
SIO
J6
V/I inputs
J5
Thermistors
J4
Differential pressure
J3
Pressure
J2
STAT
COMM