YASKAWA FSDrive-MV1S - Page 187

Protective and Diagnostic Functions
7-5
CF
Out of Control
F
Control Fault
The torque limit was reached continuously
for 3 seconds or longer during a deceleration
stop during open-loop vector control.
• Check the motor constants.
Constant: E1-, E2-
• Lengthen the deceleration time.
Constant: C1-
OPR
Opr Disconnect
F
Digital Operator Connection Fault
The connection to the Digital Operator was
broken during operation for a RUN command
from the Digital Operator.
Detected when 02-06 is set to1.
• Check the connection to the Digital Oper-
ator.
CPF00
COM-ERR
(OP &INV)
F
Digital Operator Communications Error 1
Communications with the Digital Operator
were not established within 5 seconds after
the power was turned on.
• Disconnect the Digital Operator and then
connect it again.
• Try turning the control power supply off
and on again.
• Replace the Digital Operator or the CPU
board.
CPF01
COM-ERR
(OP &INV)
F
Digital Operator Communications Error 2
After communications were established,
there was a communications error with the
Digital Operator for more than 2 seconds.
• Disconnect the Digital Operator and then
connect it again.
• Replace the Digital Operator or the CPU
board.
CPF03
EEPROM Error
F
EEPROM error
The control circuit is damaged.
• Try turning the control power supply off
and on again.
• Replace the modulator board.
CPF05
External A/D Err
F
CPU internal A/D converter error
The control circuit is damaged.
• Try turning the control power supply off
and on again.
• Replace the modulator board.
HDE
HARD Fault
F
Modulator board Hardware Fault
The modulator board is damaged.
• Try turning the control power supply off
and on again.
• Replace the modulator board.
DTM
MB Watchdog Flt
F
Modulator Watchdog Fault
The communication error between with the
modulator board and the CPU board
occurred.
• Try turning the control power supply off
and on again.
• Replace the CPU board or the modulator
board.
CTF
Analog Pwr Fault
F
Analog Power supply Fault
The analog power supply (±15V) was low-
ered.
• Replace the analog power supply (±15V).
CER
CTL CPU Fault
F
CPU Watchdog Fault
The watchdog timeover occurred in the CPU
board.
• Try turning the control power supply off
and on again.
• Replace the CPU board.
BAT
Weak Battery
F
Battery Lowered
Battery for memory on the CPU board was
lowered.
• Replace the battery on the CPU board.
EF x
Ext Fault Sx
F/A
External Fault (Input terminal Sx)
x = 3 to 16
An “external fault” was input from a multi-
function input terminal.
• Reset external fault inputs to the multi-
function inputs.
• Remove the cause of the external fault.
Table 7.1 List of Drive Faults (Continued)
Fault Display Rank Fault Details Corrective Actions