Yaskawa 1000 Series Drive Option - Profibus-DP Installation - Manual (Page 32)

8 Troubleshooting
32 YASKAWA ELECTRIC TOBP C730600 42C 1000-Series Option SI-P3 Installation Manual
■ Minor Faults and Alarms
Digital Operator Display Fault Name
oFc02
Option Fault (CN5-C)
Two of the same options are connected simultaneously.
Cause Possible Solution
Options AI-A3 or D1-A3
connected to the CN5-C port
while an option was connected
to CN5-A.
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.
Digital Operator Display Minor Fault Name
bb
Baseblock
Data format and setting contents do not match.
Cause Possible Solution
Minor Fault
(H2- = 10)
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.
Set either of the bits depending on the data format used. No output
Digital Operator Display Minor Fault Name
CALL
Serial Communication Transmission Error
Communication has not yet been established.
Cause Possible Solution
Minor Fault
(H2- = 10)
Communication wiring or terminal
resistor connection is faulty. There is
a short circuit, or an option
component is not connected
properly.
Check for wiring errors and correct the wiring.
Remove any ground shorts and reconnect loose wires.
Yes
Master-side programming error.
Check communications at start-up and correct
programming errors.
Damaged communication circuitry.
Perform a self-diagnostics check and replace the drive
if the fault continues to occur.