Siemens SIMATIC S7-300 Manual page 283

11.1 Error classes and module responses
Overview
The FM 354 contains monitoring circuits which are active during startup or
during continuous operation. Errors occurring during those times are reported
to the system and to the user program.
The table below lists the error classes and their meaning.
Table 11-1 Error classes, overview
Message Error Class
Internal errors
External errors
Diagnostic
interrupt
External
channel errors
Operator control
and travel errors
Checkback
signals
Data errors
Error response
Each error message triggers an appropriate response.
Table 11-2
Everything OFF
Feed STOP
Warning
FM 354 Servo Drive Positioning Module
Response
...are hardware faults in the module which are discovered by diag-
nostics routines (e.g. memory errors).
(see Section 6.4 for diagnostic interrupt data and error list, Table
11-4)
...are errors which can occur due to faulty module connection (e.g.
parameters for initialization of module MP station numbers are
missing or are incorrect).
Everything
(see Section 6.4 for diagnostic interrupt data and error list, Table
OFF
11-4)
...are measurement system errors or errors which can occur by
connecting the digital outputs or during operation (operating er-
rors) of the FM 354 (e.g. cable break, incremental value encoder).
(see Section 6.4 for diagnostic interrupt data and error list, Table
11-4 and 11-5)
... are errors (operator/travel errors) which can occur during "op-
Feed STOP eration" of the FM 354 (e.g. direction signals R+ and R– set at the
same time, see Error List, Tables 11-6 and 11-7).
... are errors (data, machine data and traversing program errors)
Warning! which are detected on interpretation of invalid data (see Error List,
Table 11-8).
Overview of internal error responses
Error response
Stop movement by way of voltage ramp (MD45)
Disable digital outputs
Deactivate servo enable
SYN is cleared
No new travel jobs possible
Stop movement by controlled deceleration
Travel job is canceled and terminated.
Measured data acquisition and position control are continued.
No new travel jobs possible
Message only
Movement and control of axes not affected
Troubleshooting
Significance
Significance
11-3