Yaskawa 1000 Series Drive Option - Digital Output Installation - Manual (Page 28)

7 Troubleshooting
28 YASKAWA ELECTRIC TOBP C730600 41F 1000-Series Option DO-A3 Installation Manual
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Preventing Electrical Signal Interference
Take the following steps to prevent erroneous operation caused by electrical signal
interference:
• Use shielded wire for the signal lines.
• Limit the length of wiring under 50 m (164 ft.).
• Separate the control wiring to the option, main circuit wiring, and power lines.
■ Interface Circuit
Figure 11
Figure 11 Output Interface Circuit
Digital Operator Display Fault Name
oFC02
Option Fault (CN5-C)
Two of the same options are connected simultaneously.
Cause Possible Solution
Same type of option connected to unit ports
CN5-A, CN5-B, and CN5-C.
Use only compatible options.
Photocoupler
PC
P1 to P6
M1, M3
M2, M4
+V
Contact relay output
Signal
Processor
DO