Curtis Instruments AC F4-A - Page 65

4 — PROGRAMMABLE PARAMETERS
pg. 57
Return to TOC Curtis AC F4-A Motor Controller – August 2020
Isolated CAN models
CAN1 and CAN2 do not have internal 120Ω termination. Pin 34 is the CAN-circuit isolated
(reference) ground. Do not use the controller’s I/O ground (pins 7 and 18) for the isolated CAN
connections.
CAN1
CAN1 L = pin 35
CAN1 H = pin 23
CAN2
CAN2 L = pin 29
CAN2 H = pin 28
Isolated GND = pin 34
Pin 21 = Not used (no connection).