Alarm Object (Emergency Object) - Siemens Sinamics S120 Commissioning Manual

Diagnosis

6.2 Alarm object (Emergency Object)

6.2 Alarm object (Emergency Object)
Error statuses for each drive unit are signaled via the high-priority 8-byte emergency object
(error message).
You can find the relevant parameters here:
● In the object directory index 1014 hex (COB ID EMCY) and 1015 hex (inhibit time EMCY)
● For SINAMICS in parameter p8603 of the Control Unit.
When an error occurs, an error telegram (emergency telegram) is sent to the identifier set in
object "1014 hex".
Every error is assigned an error code in CANopen, with the error codes being further
subdivided into, for example, current errors, voltage errors, etc.
Emergency telegram
When an error occurs, the CANopen drive unit automatically transmits an emergency
telegram asynchronously. The emergency telegram is structured as follows:
Table 6- 3
Byte 0
CANopen
Error code
The CANopen error code is in bytes 0 and 1 (refer to the section "Drive-unit-internal error list
("predefined error field") (Page 125)").
The codings for the CANopen error register are located in byte 2 (refer to the section "Drive-
unit-internal error list ("predefined error field") (Page 125)").
Byte 5 contains the number of the drive object from which the error originated.
Alarms that do not result in a shutdown are indicated only by the alarm bit or fault bit in the
status word and do not trigger an emergency telegram. Faults trigger an emergency
telegram and cause the drives to be shut down. The fault telegram can be suppressed by
setting bit 31 in object 1014 hex.
124
Structure of the emergency telegram
Byte 1 Byte 2
CANopen
Error
Register
Byte 3 Byte 4
SINAMICS
fault number
Commissioning Manual, 11/2017, 6SL3097-4AA00-0BP3
Byte 5 Byte 6
Drive Reserved
object
number
CANopen interface
Byte 7
Reserved