183
Error Codes
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Cause Check
Checklist
App.
Check Point Normal Abnormal
Defective
Parts
External Noise
Wrong Connection
0DVWHU2'8ļ
Slave ODU)
Push the reset button (If the cause in
noise, communication will fail
intermittently.
Check if shielded wire is used or not.
Wire
Shield wire Non-shielded wire
Wire /
External Noise
B4
(Power Off)Check connection of GND wire from
chassis
Wire
Connected
from chassis
Non connected
from chassis
-
Check whether wiring A and B is incorrect.
0DVWHU2'8ļ6ODYH2'8
ODU A,B
Terminal Block
A-A, B-B
Cross connect A
with B
-
SMPS PCB
Damaged
Check 5V Voltage (Comm. 5V) Voltage 4.5V ~ 5.5V 9Ļ SMPS PCB
A4
(Power On)
Check Resistance of Communication IC Resistance NĹ NĻa Main PCB
B4
(Power Off)
External PCB
Damaged
Check whether patterns in external PCB
are connected
Resistance Ļ Open External PCB
Table 82: Error No. 104 Improper Connections Checkpoint Details.
ERROR CODES
Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and service
troubleshooting of the Multi V product.
WARNING
Error No. 104, continued.
Master Slave
SODU Comm. B
SODU
B
SODU
A
SODU
B
SODU
A
SODU Comm. A
NG
Figure 74: Error No. 104 Improper Connections.
Figure 75: Checking Error No. CH104 from Main PCB (Communication IC) In Case of Power Off.
Red
Black
Figure 76: Multi-Meter (Note the
Probe Color).
+%%
Table 83: Error No. 104 Main PCB (Communication IC) Checkpoint Details.
Check Mode
Multi-Meter Measured Value
Black Red Normal Abnormal
IC07C ȍ IC07C GND (pin 5) IC07C Vcc (pin 8) NĹ Not Normal
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