8
1.7 Signal inputs and outputs
The following is the Signal Connector Description.
1 IMOT(OUT). Current Monitor: +/-7 V corresponds to drive's Peak current. A 5K6 Kohm resistor is
inserted in series on the output driver.
2 OK (OUT). Drive Ok, Open collector with 50mA max. current. (Normally closed, it opens for any
type of protection intervention).
3 TPRC (IN). (OUT). This command can be used in 2 distinct modes:
A. Current Output Limitation;
happens by connecting an external resistor to zero; linear re-partitioning with R
internal = 47K (the internal velocity loop remains functional). Ex. with ext. R of 47K
the curent is limited 50% of the size I Max.
B.
Current Reference (Torque Input): low impedance voltage drive with a signal of
+/- 10V max., which corresponds to the drives peak current output.
In this case the velocity loop is automatically excluded and doesn't interfere with the
system.
The TPRC terminal could be used (as an alternative in cases A and B) as a signal
monitor of the drive's demand current (output impedence 50k)
4 GND DriveCommon Zero Signal. Internally connected with to power supply's negative -AT
input.
5 +10V (OUT). Auxilary voltage+10V max 4mA
6 -10V (OUT). Auxilary voltage-10V max 4mA
7 ENABLE (IN). Functional enabling of the drive. (Range included between +10V and 30Vdc max.
positive logic).
It's also possible to enable the drive with negative logic by connecting a GND input
(to enable such a function, close solder links S12-S13).
8 +REF(IN). Positive (hot) differential Reference input.
9 -REF (IN). Negative (cold) differential Reference input.
10 CHA (IN) Encoder input Chanel A (include high logic level between +5V/24Vdc max)
High logic level >3,2V Low logic level <1,5V.
11 CHB (IN) Encoder input Chanel B. (include high logic level between +5V /24Vdc max).
High logic level >3,2V Low logic level <1,5V.
12 +V (OUT). Auxilary voltage +5V max 130mA.
13 GND. DriveCommon Zero Signal. Internally connected with to power supply's negative -AT
input.
14-15-16 HALL A-B-C (IN). Hall Sensor inputs internally connected to the motor. Each input has a pull-up
resistor 1 Kohm at 5V.
High logic level>3,2V , Low logic level<1,5V.
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