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3-2
Origin Search Mode Connection Examples
Example 1: Origin Search Mode 0 Connection
When Stepping Motor
Driver is Used
C500-NC211
Position Control Unit
CW output
CCW
output
power supply
for output
0 V
Origin
proximity
input
Origin
Input
power supply
for input
CCW limit
input
CW limit
input
Emergency
STOP input
Caution
!
This example shows the use of a stepping motor with an external sensor signal
connected to the origin signal.
Do not make any connection to the Z-phase input (9 (X)/ 31 (Y)).
The following diagram illustrates connection 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)
1
+
24 VDC
23
Switch (N.O. or N.C. input)
7(X)
29(Y)
10(X)
11(X)
32(Y)
24 V
0 V
Signal
33(Y)
24 VDC
22/34
+
17(X)
20(Y)
18(X)
21(Y)
19(X/Y)
Note Be sure there is no chattering in the origin input. If chattering occurs during an
origin search, an emergency stop error (error code 6000) will be generated.
When only one axis is used, short-circuit the CW limit input and CCW limit input
of unused axis to 0 V in 24 VDC. If these are not short-circuited, the ERROR LED
will light, although the axis in use will operate normally.
Stepping motor driver, for example, model UFK543A
(5-phase) or UMK264A (2-phase) made by Oriental Co.
+CW
--CW
+CCW
--CCW
External signal such as photoelectric
switch or proximity switch (NPN output
type in this example). See note.
Switch
(N.C. input)
Section
3-2
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