Rockwell Automation 1398-DDM-xxx USE MNL/ULTRA 200 DIG.SERVO.DR - Manual (Page 83)

Publication 1398-5.0 – October 1998
Interfaces 6-19
Auxiliary Encoder Inputs
The ULTRA 200 Series drive may be electronically geared by a
remote signal. Electronic gearing may be driven by any of the
following three signals:
●
A master incremental encoder that generates quadrature encoder
signals
●
Step and direction signals, such as those created by indexers for
step motors
●
CW (Step Up)/CCW (Step Down) signals, typically used with
stepper indexers.
Figure 6.21 Auxiliary Encoder Input Types
Intro
A
B
STEP
DIR
CW
CCW
Note: The use of differential signals is strongly recommended. Single-
ended signals are susceptible to noise, which may cause intermittent or
continuous errors.
To improve noise immunity, terminate cable shields at both ends of the
cable. Connect shields to the backshell of the connector with a complete
circumferential (360°) termination. The cable connector should then
connect to chassis ground (not signal ground.)
Figure 6.22 Auxiliary Encoder Input Circuit
Intro
-
+
26LS33
AX(-)
1K
220pF
AX
220pF
AX(+)
1K
5K
+5VDC
10K
+5VDC
10K
5VCOM
Drive J1