22
E-AC Drive Hardware Installation Guide Chapter 2 – Installation
4 – CONNECT A CONTROLLER – INPUTS & OUTPUTS
Connect your controller cable to the DRIVE I/O connector, a 25 pin D-
connector on the front of the drive. The cable that comes with Compu-
motor controllers is prewired for compatibility with the E-AC Drive—you
can plug the cable directly into the E-AC Drive’s DRIVE I/O connector.
Controller
E-AC Drive
SERIES
DRIVE I/O
MOTOR
PWR/FLT
Compumotor
L1
N
A +
A -
B +
B -
120V
Connecting a Compumotor Controller
If you make your own cable, or use a non-Compumotor controller, con-
sult the drawing below when you wire your cable and connector.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
E-AC Drive – Internal Connections
ILD223
ILD213
ILD213
HCPL2631
HCPL2631
243Ω
243Ω
681Ω
681Ω
Shutdown–
Shutdown+
Fault+ (C)
Fault– (E)
Reset+
Reset–
Step–
Step+
Direction–
Direction+
Drive I/O Connector
Descriptions of each function on the 25 pin D-connector follow.
STEP INPUT
For every step pulse it receives on its step input, the drive will commutate
the motor to increment rotor position. To send a step pulse to the drive,
apply a positive voltage to STEP+ with respect to STEP–. The drive regis-
ters the pulse on the rising edge.