ASI BAC4000/8000 Motor Controller Pin-Out

Terminals

There are 5 screw terminals on the top of the unit which are for the motor phase wires and the battery.

U	Motor phase wire U (Green)
+	Battery positive (36-72v)
V	Motor phase wire V (Yellow)
–	Battery negative
W	Phase Wire W (Blue)

Molex Connectors

There are a pair of Molex connectors on the right hand side of the unit 1 x 16-pin MX150 and 1 x 6-pin MX150.

CON 1: 16-pin Molex MX150

Pin #	Function	I/O Details	Continuous Current	Withstand Voltage	Notes
1	HDQ	Low-side Switch	100 mA	57 V
2	Cruise	5V Pulled-up, active low		100 V
3	TTL-TX	5V TTL		9 V
4	5V output	Polyfuse protected	50 mA Shared		Shared output
5	PFS	5V Pulled-up, active low		100 V
6	Brake 1	0-5V, Configurable 5V pull-up		5.5 V
7	Throttle	0-5V Pulled down		5.5 V
8	5V Output	Polyfuse protected	50 mA Shared		Shared output
9	Key In / Ignition	Connect to Battery positive to power on	400 mA	95 V	Requires B+ out connection, may draw up to 100 mA
10	CAN-L	5V CAN		20 V	Configurable 120 Ω termination resistor
11	CAN-H	5V CAN		20 V	Configurable 120 Ω termination resistor
12	ABMS	0-10V Pulled down		11.5 V
13	TTL-RX	5V TTL		9 V
14	Signal GND		400 mA shared		400 mA max shared with all GNDs
15	Signal GND		400 mA shared		400 mA max shared with all GNDs
16	12V Output	Polyfuse protected	50 mA	47.5 V

CON 2: 6-pin Molex MX150 (Hall Sensors)

Pin #	Function	I/O Details	Continuous Current	Withstand Voltage	Notes
1	Hall 5V		100 mA	47.5 V
2	Hall GND	Polyfuse protected	100 mA
3	Hall A	5V Pulled-up, active low		100 V
4	Hall B	5V Pulled-up, active low		100 V
5	Hall C	5V Pulled-up, active low		100 V
6	Brake 2	0-5V, Configurable 5V pull-up		5.5 V