No. Fault code name No. Fault code name
0 No fault record 14 Encoder speed detection fault (PULS)
1 Over current at constant speed (O.C.-1) 15 Motor overheat (M.O.H.)
2 Over current in acceleration (O.C.-2) 16 EMI (CPU-)
3 Over current in deceleration (O.C.-3) 17 Short circuit (S.C.)
4 Over voltage at constant speed (O.E.-1) 18 Reserved
5 Over voltage in acceleration (O.E.-2) 19 L1, L2, L3 phase failure (IPH.L)
6 Over voltage during deceleration (O.E.-3) 20 U, V, W phase failure (OPH.L)
7 Frequency converter overload (O.L.-1) 21 Frequency converter overheat (C.O.H.)
8 Motor overload (O.L.-2) 22 Parameter setting fault (PRSE)
9 CPU read/write fault (R.E.) 23 Parameter auto-tuning fault (TUNE)
10 Operating panel read/write fault (KEY-) 24
Frequency converter over load pre-warning 2
(O.L.-3)
11 External fault (E.-St) 25 Broken wire alarm (B.W.A)
12 Communication fault (R.S.) 26 Broken wire fault (B.W.F)
13 Circuit disconnection (C.F.) – –
Tab. 12-39: Fault codes and meanings_PROFIBUS
Example 1
If the Maximum frequency of the frequency converter is set at 100 Hz, to for‐
ward run the frequency converter ward run at 200 Hz (0x4E20) (exceeds the
maximum frequency), then the PPO request and response messages are
shown in table below.
PZD1 PZD2
PPO request message
CW REF
0x0001 0x4E20
PPO response message
SW ACT
0x0180 0x4E20
Tab. 12-40: Example 1_PPO request and response messages
In this example, the feedback status word is 0x0180, bit7...bit9 of
status word is 011 (PZD area set frequency exceeds limit).
Example 2
The frequency converter is first forward run at 50 Hz (0x1388), the hardware
circuit of communication is then disconnected, then the PPO request and re‐
sponse messages are shown in table below.
DOK-RCON02-FV*********-IB08-EN-P Bosch Rexroth AG 243/259
Rexroth Frequency Converter Fv
Communication Protocols
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