User manual

PoStep60 user manual
11
www.poscope.com
4.5 DC motor connection
4.5.1 6 pin PWM connector pinout
Pin
Function
1
End Switch
2
PWM BIN2
3
PWM BIN1
4
PWM AIN2 (inverted)
5
PWM AIN1 (inverted)
6
GND
All PWM connector input pins has on board pull-up resistors. The pins can be either open-collector
toward GND or push-pull driven. For input limiting values please refer to Section 6 - Technical
specifications.
4.5.2 DC motor connection
The PoStep driver can be configured to enable direct control the state of the output drivers. This
allows for driving up to two brushed DC motors. First DC motor is connected to terminals A1 and A2
and second DC motor to terminals B1 and B2. Speed and direction of DC motor rotation is controlled
by PWM AINx and PWM BINx for first and second motor respectively. Driver allows connection of
only one DC motor on A or B terminals as well as two DC motors.
Figure 4: Connection of up to 2 DC motors
NOTE!
PWM AIN1 and PWM AIN2 inputs are inverted.
CAUTION!
Please make sure driver is configured to support DC motor drive. If not the DC motor
can randomly rotate in speed and direction due to active micro stepping indexer.
NOTE!
Full-scale current value still applys when in DC drive mode. Idle current is not
applicable and is not being used.
2 4 6
1 3 5