Operating instructions

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6 Annex
6.1 Error messages
The various control functions and methods and the hardware of the frequency inverter
contain functions which continuously monitor the application. As a supplement to the
messages documented in these operating instructions, the following failure keys are
activated by the EM-SYS expansion module.
System bus error messages
F21 nn Fault report to system bus master in fault in system bus slave
nn = Node ID of slave (hex)
00 Communication fault, system bus, timeout SYNC telegram
01 Communication fault, system bus, timeout RxPDO1
02 Communication fault, system bus, timeout RxPDO2
03 Communication fault, system bus, timeout RxPDO3
F22
10 Communication fault, system bus, bus OFF
Alongside the fault messages stated, there are further fault messages, however they
are only used for internal purposes and are not listed here. If you receive fault mes-
sages which are not listed here, please contact us by phone.