Siemens SIMATIC FM 453 Manual page 319

11.1 Error Classes and Module Responses
Overview
The FM 453 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 signals
Data errors
Error Response Each error message triggers an appropriate response.
Table 11-2
Everything OFF
Feed STOP
Warning
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
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.
front panel connector missing).
(See Section 6.4 for diagnostic interrupt data and error list, Table
Everything
11-4)
OFF
...are measurement system errors or errors which can occur by
connecting the digital outputs or during operation (operating
errors) of the FM 453 (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 (general operator control and guidance errors) which
can occur during "operation" of the FM 453 (e.g. direction signals
Feed STOP
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 Responses
Error
Response
Movement stopped by actuating signal ramp (MD45)
Digital outputs disabled
Servo enable is de-activated
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