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M o t o r H o l d i n g C u r r e n t ( M H C )
The MHC parameter sets the motor holding current as a percentage of the full
output current of the driver. If the hold current is set to 0, the output circuitry
of the driver will disable when the hold current setting becomes active.
The hold current setting becomes active 200ms following the last step clock
pulse.
M o t o r R u n C u r r e n t ( M R C )
The Motor Run Current (MRC) parameter sets the motor run current to a
percentage of the full output current of the driver.
RANGE
1
VI
200
VM
100000 50000 25000 10000 5000 2500
Table 1.7.2: RANGE Parameter Settings
I n p u t M o d e ( A 1 )
The Input mode setting selects the input method to be used, either Voltage,
4 - 20mA or 0 - 20mA. NOTE: In the Voltage mode you may also use a 15
kHz to 25 kHz PWM Input.
V e l o c i t y R a n g e ( R A N G E )
The RANGE parameter specifies the maximum ranges available for the initial
velocity (VI) and maximum velocity (VM). When the range is set to a value,
the VI and VM parameters will automatically default to the value specified by
the range setting. The value of VI and VM can then be set within the range
specified by RANGE. The previous table illustrates the range settings.
M i c r o s t e p R e s o l u t i o n S e l e c t ( M S E L )
The MSEL parameter specifies the microstep resolution of the MDrive. See
the table below for valid MSEL parameter settings.
Microstep Resolution Settings (MSEL)
Binary Microstep
Resolution Settings
MSEL=
2
4
8
16
32
64
128
256
Table 1.7.3: MSEL Parameter Settings
RANGE PARAMETER SETTINGS
2
3
4
100
50
20
Steps/Rev
400
800
1,600
3,200
6,400
12,800
25,600
51,200
5
6
10
5
1000
Decimal Microstep
Resolution Settings
MSEL=
Steps/Rev
5
1,000
10
2,000
25
5,000
50
10,000
125
25,000
250
50,000
7
8
2
1
500
53
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