TERMINAL 9 GROUND
This is the CN0124's power supply GROUND input. It also serves as the
return side of the current set resistor (Terminal 10).
TERMINAL 10 CURRENT
SET
A resistor from the CURRENT SET pin to the GROUND pin sets the
operating phase current. The resistor value for a motor in the high
performance configuration is calculated from the following formula:
R =
780 I
(2 - I
)
SET
SET
Where R is the current set resistor
value in ohms and I
SET
is the desired
phase current in amperes (parallel)
The CURRENT SET TABLE lists resistor values for both parallel and series
operation. Use the high performance column in the table when selecting
phase current for 4 wire motors.
CURRENT SET TABLE
AMPERES
(SERIES)
AMPERES
(PARALLEL)
RESTISTOR
(OHMS)
.2
.4
.6
.8
1.0
.1
.2
.3
.4
.5
39
82
130
200
270
1.2
1.4
1.6
1.8
2.0
.6
.7
.8
.9
1.0
330
430
510
620
750
2.2
2.4
2.6
2.8
3.0
1.1
1.2
1.3
1.4
1.5
1.0 K
1.2 K
1.5 K
1.6 K
2.4 K
3.2
3.4
3.6
3.8
4.0
1.6
1.7
1.8
1.9
2.0
3.0 K
4.2 K
6.8 K
15 K
OPEN
3
