YASKAWA 1000 Series Installation Manual page 35

Digital Operator Display
oFC02
Cause
Options AI-A3 or D1-A3
connected to the CN5-C port
while an option was connected
to CN5-A.
Minor Faults and Alarms
■
Digital Operator Display
Cause
The drive output is disabled.
"bb" is displayed on the operator
when the drive is set for control by
PROFIBUS-DP, and a conventional
data format is used,
and the operation command bit F is
set to 1, or a PPO type data format is
used, and the control word (STW)
bit 3 is set to 0.
Digital Operator Display
Cause
Communication wiring or terminal
resistor connection is faulty. There is
a short circuit, or an option
component is not connected
properly.
Master-side programming error.
Damaged communication circuitry.
YASKAWA ELECTRIC TOBP C730600 42D 1000-Series Option SI-P3 Installation Manual
Option Fault (CN5-C)
Two of the same options are connected simultaneously.
Only one of these options, AI-A3, DI-A3 or SI- option can be connected to the
drive at the same time. The SI-N3 must be connected to CN5-A.
Baseblock
bb
Data format and setting contents do not match.
Set either of the bits depending on the data format used. No output
Serial Communication Transmission Error
CALL
Communication has not yet been established.
Check for wiring errors and correct the wiring.
Remove any ground shorts and reconnect loose wires.
Check communications at start-up and correct
programming errors.
Perform a self-diagnostics check and replace the drive
if the fault continues to occur.
Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
8 Troubleshooting
Minor Fault
(H2- = 10)
Minor Fault
(H2- = 10)
Yes
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