Chapter 3 - Connecting and Installing Your Impulse
3-3

A. Connecting a Motor to the Impulse

Connecting an IDC Motor

The A+, A-, B+, and B- phase outputs power the motor windings.
Connect motor wires to th e motor conn ector (s up plied) and plug the wired con nector into the dr ive.
Drawings below provide color codes for IDC motors.
GND is internally connected to the earth pin on the power connector. This provides a convenient
terminal for grounding the motor frame and a motor cable shield. Note: If the motor is mounted on
a machine that is grounded, do not connect the motor to GND.
The two INTLK pins must be jumpered together on the motor connector to allow power to the
motor.
CAUTION! Do not remove the motor connector from the Impulse drive while power is
applied. Removing the connector while power is applied could damage the connector pins.
Do not extend the interlock jumper wire to prov ide protection for another connector interface. The
interlock circuit is susceptible to trips caused by noise-pickup in cables (20 kHz switching).
Note: This is a high-impedance safety-interlock circuit. If the interlock wire breaks, or the connector
is removed, the current to the motor is immediately stopped, the drive faults (latches) and the LED
on the front panel of the Impulse will flash five times (see LED Diagnostics on p. 3-8).

Connecting a Non-IDC Motor

One of the Impulse drive’s more advanced features, Open Loop Stall DetectTM, is guaranteed only
when matched with one of IDC’s S or P-series motors.
IDC’s S and P series motors hav e custom wind ings t o provide op timum dyn amic perfo rmance with
the Impulse. If you use another manufacturers motor, refer to Non-IDC Motors in Chapter 6,
Hardware Reference, for more information.
IDC Motor Wiring/Color Codes
Quick Disconnect Cable Wire Color
A+ Red
A- Red/Yellow
*GND Green
B+ Red/White
B- Red/Black
*Gray-colored Quick Disc. cables are
shielded - connect shield to GND.
P31/32/33S12/21/23/32/33 P21/22, S21/23
YELLOW
WHT/RED
RED
WHT/YEL
SHIELD
BLACK
WHT/ORG
ORANGE
WHT/BLK
YELLOW
WHT/RED
RED
WHT/YEL
BLACK
WHT/ORG
ORANGE
WHT/BLK
GREEN/YEL
YELLOW
WHT/YEL
WHT/RED
RED
SHIELD
BLACK
WHT/BLK
WHT/ORG
ORANGE
Series Parallel Parallel
Motor
Connector