If an RS 422 interface (OPT.2) is installed in the controller, motor rotation
monitoring can be implemented (fig. 1-8). For this purpose, the parameter
P20 = 2 must be set on the front panel and a type 1000 encoder must
be installed on the stepping motor.
Rotation monitoring
The rotation monitoring feature compares the set and actual positions of
the motor and reports a rotation monitoring error if the difference between
set and actual position exceeds a certain limit value (18 steps).
NOTE
Rotation monitoring is possible in all modes except electronic gear mode
(P00 = 3).
The input AUTOM can be used (depending on the interface configura-
tion) for selecting one of the following modes:
Manual and automatic mode
Input AUTOM = 0
–
Parameter and data input via front panel or
–
Manual mode or
–
Teach-in mode or
–
Upload/download (only with serial interface, if parameter P00 = 0)
Input AUTOM = 1
–
Oscillator mode via inputs/outputs or
–
Oscillator mode via analog interface or
–
Position processing mode via inputs/outputs or
–
Electronic gear (only with encoder interface, if parameter P00 = 3)
NOTE
In on-line command processing mode, mode selection via the AUTOM
input is only possible if parameter P69 = 1.
3-phase
stepping
motor
Encoder
20
_
+
21
OPT.1
22
OPT.2
23
Signal/
24 V DC
24
V
W
U
L
N
Rotation monitoring
M
E
Fig. 1-8 Rotation monitoring
General description
1-10
WDP3-01X Ident. no.: 00441109760
