Siemens SIMATIC S7-300 Manual page 292
Fm 354 servo drive positioning module
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Also See for SIMATIC S7-300:
- Manual (676 pages) ,
- Reference manual (574 pages) ,
- Installation and operating manual (356 pages)
Table of Contents
Troubleshooting
Table 11-4
Diagnostic interrupt, continued
Byte.
Bit
0.2, 0.3 External channel errors
8.0
Cable break, incremental encoder
(8090)
(8090)
Cause
Measurement system cable not plugged in or sheared off
Encoder without internode signals
Incorrect pin connection
Cable too long
Effect
Elimina-
Check encoder and measurement system cable
tion
Observe limit values
Using the MD20, monitoring can be temporarily skipped, at the responsi-
bility of the owner/operator.
8.1
Error, absolute encoder
(8091)
(8091)
Cause
Telegram traffic between FM 354 and the absolute encoder (SSI) is faulty or
is disrupted:
Measurement system cable not plugged in or sheared off
Unauthorized type of encoder (only allowable per MD10)
Encoder incorrectly set (programmable encoder)
Telegram length (MD13, MD14) incorrectly specified
Encoder delivers erroneous values
Noise interference on measurement system cable
Baud rate set too high (MD15)
Effect
Elimina-
Check encoder and measurement system cable
tion
Check telegram traffic between encoder and FM 354
Using the MD20, monitoring can be temporarily skipped, at the responsi-
bility of the owner/operator.
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
Message/
Display
SF
DC5V
DIAG
FM 354 Servo Drive Positioning Module
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