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Example 4: Origin Search Mode 3 Connection
Position Control Unit
CW output
CCW output
Power supply
for output
Origin adjustment
command output
Positioning
completion input
Input power
supply
Origin proximity
input
CCW limit
input
CW limit
input
Emergency stop in-
put
Caution
!
This is an example using the origin adjustment function of OMRON's Servomo-
tor Driver. The positioning completed signal (INP) is used as both the origin
search completion and the positioning completed signal.
Be sure to adjust the settings of the servomotor driver so that the positioning
completed signal is OFF when the motor is operating and ON when it is stopped.
The following diagram illustrates a connection example in which only the X axis
is used. The same wiring can be used for the Y axis of the NC211. The NC113 is
not provided with the Y axis.
2(X)
24(Y)
13(X)
15(Y)
24 VDC
1
+
Limit switch (NC) input)
23
0 V
5(X)
27(Y)
8(X)
30(Y)
12 to
24 VDC
22/34
+
7(X)
Limit switch
29(Y)
(NO (or NC) input)
17(X)
20(Y)
18(X)
21(Y)
19
(X/Y)
Limit switch
(NC input)
When only one axis is used, short-circuit the CW limit input and CCW limit input
of unused axis to 0 V in 12 to 24 VDC. If these are not short-circuited, the ER-
ROR LED will light, but the axis in use will operate normally.
OMRON R88D-H
Servomotor Driver
Servomotor
15
+CW
R88M-H
34
--CW
14
+CCW
33
--CCW
+24VIN
19
37
G24V
RUN
13
6
EM
H-RET
11
+5V OUT
18
30
--5V IN
28 INP
Section
3-2
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