Omron CS1W-213 - REV 02-2008, Operation Manual

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Servo Relay Unit Section 3-7
3-6-2 CS1W-NC213/NC233 – X Axis Only (Unit Versions Earlier Than
2.1)
On PCUs with a unit version earlier than 2.1, unused axes require only the
emergency stop input signal to be wired.
Based on Example 2: Mode 1 Connection on page 47, the following example
shows the connections for the CS1W-NC213/NC233 when only the X axis
(and not the Y axis) is used. In this example, the limit input signals for both
axes are set to N.C. contacts. With the CS1W-NC413/NC433, if the Z axis is
used and the U axis is not used, the connection will be the same with X and Y
replaced by Z and U respectively.
When there is an unused axis, connect the emergency stop input signal (N.C.
contact) and the CW/CCW limit input signals (N.C./N.O. switchable) for that
axis so that they are ON. If the parameters are at their default settings, the
CW/CCW limit input signals are N.C. contact inputs and so connect an input
power supply and keep power ON.
If the emergency stop input signal and the CW/CCW limit input signals for an
unused axis are not ON, a sensor input error (error codes 6000, 6100, or
6101) will be generated for the axis, and the ERC and SENS indicators as
well as the LED indicator for the axis will light or flash. The used axis, how-
ever, will continue to operate normally even if an error is generated for the
unused axis.
Note If the CW/CCW limit input signals for the unused axis are set to N.O contacts
using the parameter settings, it is not necessary to wire the CW/CCW limit
inputs. For details, refer to
4-3 Axis Parameter Area .
3-7 Servo Relay Unit
• Wiring requirements can be reduced by connecting Servo Drives and
PCUs via a Servo Relay Unit, which provide a connector and a terminal
block in one Unit.
Position Control Unit
X axis (used)
Y axis
(not used; no wiring required)
X axis (used)
Y axis (not used)
Origin
proximity
input
signal
CCW limit
input signal
CW limit
input signal
Emergency
stop input
signal
N.C. contact
N.O. contact
Input
common
N.C. contact
N.C. contact
24 VDC
X axis (used)
Y axis (not used)
X axis (used)
Y axis (not used)