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Troubleshooting
Table 11-4
Diagnostic Interrupt, continued
Byte.
Bit
0.2, 0.3 External channel errors
8.3
Voltage monitoring, encoder
(8093)
(8093)
Cause
Auxiliary 24 V DC voltage for encoder supply is not applied to front
or
connector X1.
10.3
Short-circuit in encoder supply cable (5 V incrementally, 24 V SSI).
(80B3)
Failure of module internal encoder supply unit.
or
or
Effect
12.3
12.3
(80D3)
Elimina-
Check connections.
tion
Replace the FM 453 if 24 V DC (1L+/1M) and encoder cable OK.
Using the MD20, monitoring can be temporarily skipped, at the responsi-
bility of the owner/operator.
8.4
Voltage monitoring 15 V
(8094)
(8094)
Cause
Failure of module internal
or
10 4
10.4
Effect
(80B4)
or
Elimina-
Replace the FM 453.
tion
Using the MD20, monitoring can be temporarily skipped, at the responsi-
12.4
bility of the owner/operator.
(80D4)
8.5
Voltage monitoring of digital outputs
(8095)
(8095)
Cause
Auxiliary 24 V DC voltage for digital outputs is not applied to front connec-
or
tor X1.
10 5
10.5
Effect
(80B5)
(80B5)
Elimina-
Check connections.
or
tion
Replace the FM 453 if 24 V DC OK.
12.5
Using the MD20, monitoring can be temporarily skipped, at the responsi-
(80D5)
bility of the owner/operator.
8.7
For operating errors, see Table 11-5
(8097
or
10.7
(80B7)
or
12.7
(80D7)
Note: (xxxx) value = Hexadecimal notation in diagnostic buffer.
11-12
Error Message,
Error Analysis and Elimination
Error response: "Everything OFF", as in Table 11-2
15 V.
FM 453 Servo Drive / Step Drive Positioning Module
Message/
Display
INTF
EXTF
EXTF
STAT
C79000-G7076-C453-01
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