94
Manual – MOVIDRIVE® MDX60B/61B Communication and Fieldbus Unit Profile
7
Sequence control
SEW Unit Profile
Fault/warning
With bit 5 in the status word, the inverter signals a possible fault or warning. The result
of a
fault
is always that the inverter is no longer ready for operation. A
warning
, how-
ever, can occur temporarily without affecting the operating behavior of the inverter.
Therefore, you should also evaluate status bit 1
inverter ready
(requirement: mains
voltage ON).
Limit switch
processing
Limit switch processing is active if two input terminals of the inverter are programmed to
CW limit switch
or
CCW limit switch
. In this way, the higher-level controller is informed
about the current status of the limit switches so it is able to specify the travel process in
opposite direction. The terminal signals of the limit switches are 0-active while the con-
dition of the limit switches is indicated in the drive inverter as 1-active.
7.4.7
Status word 1
Status word 1 contains the status information in the basic status block and the
unit
status
or the
fault number
in the higher-level status byte. Depending on the fault bit,
the unit status is displayed for fault bit = 0 or for problems (fault bit = 1), the error number.
The fault bit is reset by resetting the fault and the current unit status is displayed. The
meaning of the fault numbers and the unit status is described in the system manual or
in the MOVIDRIVE
®
MDX60B/61B operating instructions.
Bit 1: Ready
Bit 5: Fault/warning
Meaning
0
0
Inverter not ready for operation
0
1
Malfunction
1
0
Inverter is ready for operation
1
1
Warning
Bit Function
Definition
0
Output stage enabled
Fixed definition
1
Inverter ready
2
PO data enabled
3
Current ramp generator set
4
Current parameter set
5
Fault/warning
6
Limit switch CW active
7
Limit switch CCW active
8
Fault/warning?
Bit 5 = 1
→
fault number:
01 Overcurrent
02 ...
Bit 5 = 0
→
Unit status:
0x1 Controller inhibit
0x2 ...
Unit status/Fault number
9
10
11
12
13
14
15
Summary of Contents for MOVIDRIVE MDX60B
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