iMC-S8
– operating instruction
page - 23
Current reduction (DIP-switch 4)
Use the DIP switch 4 to set the automatic current reduction. If the DIP switch is set to
ON the automatic current reduction is deactivated. DIP switch in state OFF means
that the current is set to 50% of the motor current if the motor standstill.
DIP 4
Stromabsenkung
ON
0% reduction (deactivated)
OFF
50% reduction
If the holding torque is sufficient, the activated automatic current
reduction is recommended.
The factory set of the current reduction is active (DIP 4 = OFF).
Step resolution (DIP-switch 5, 6, 7, 8)
Use the DIP switches 5, 6, 7 and 8 to set the step resolution. Setting the factor to a
higher value causes a smooth motion of the motor but the maximum reachable
velocity will taking down. Also the motor torque will be reduced to 75% in microstep
mode. The following table shows the DIP switch settings for the different step
resolutions:
micro steps
steps/ rev. (1,8 ° motor)
SW5
SW6
SW7
SW8
2
400
OFF
ON
ON
ON
4
800
ON
OFF
ON
ON
8
1600
OFF
OFF
ON
ON
16
3200
ON
ON
OFF
ON
32
6400
OFF
ON
OFF
ON
64
12800
ON
OFF
OFF
ON
128
25600
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
125
25000
OFF
OFF
OFF
OFF
Tabelle 1: Step resolution MD24
