EM882S Digital Stepper Drive User Manual
Motion Control Products Ltd. Tel.: (+44) 01202 599922
Peak Current
RMS Current
SW1
SW2
SW3
2.1A
1.48A (default)
ON
ON
ON
2.7A
1.93A
OFF
ON
ON
3.6A
2.57A
ON
OFF
ON
4.6A
3.29A
OFF
OFF
ON
5.5A
3.93A
ON
ON
OFF
6.4A
4.57A
OFF
ON
OFF
7.3A
5.21A
ON
OFF
OFF
8.2A
5.86A
OFF
OFF
OFF
7.2 Idle Current Configuration
(SW4)
The SW4 of an EM882S is used to set output current percentage when motor is standstill. Idle current percentage will
be set to 50% at OFF position, and 100% at ON position. When the driven stepper motor is idle (no movement) for 0.4
second, the output current of EM882S will be automatically reduced to the configured percentage.
7.3 Micro Step Configuration (SW5-8)
Each EM882S has 8 micro step settings which can be configured through DIP switch SW5, SW6, SW7 and SW8. See the
following table for detail. When they are set to
ON, ON, ON,ON,
the microstep can be set via Leadshine ProTuner.
Micro step
Pulses/Rev. (for 1.8°motor)
SW5
SW6
SW7
SW8
2
400 (default)
ON
ON
ON
ON
4
800
OFF
ON
ON
ON
8
1600
ON
OFF
ON
ON
16
3200
OFF
OFF
ON
ON
32
6400
ON
ON
OFF
ON
64
12800
OFF
ON
OFF
ON
128
25600
ON
OFF
OFF
ON
256
51200
OFF
OFF
OFF
ON
5
1000
ON
ON
ON
OFF
10
2000
OFF
ON
ON
OFF
20
4000
ON
OFF
ON
OFF
25
5000
OFF
OFF
ON
OFF
40
8000
ON
ON
OFF
OFF
50
10000
OFF
ON
OFF
OFF
100
20000
ON
OFF
OFF
OFF
200
40000
OFF
OFF
OFF
OFF
