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S e c t i o n 2 . 1
M D r i v e 1 7 P o w e r S u p p l y & T h e r m a l
P o w e r S u p p l y S p e c i f i c a t i o n s
Recommended Supply Type
Ripple Voltage
Output Voltage
Table 2.1.1: MDrive17 Recommended Power Supply Specifications
A characteristic of all motors is back EMF. Back EMF is a source of current
that can push the output of a power supply beyond the maximum operating
voltage of the driver. As a result, damage to the stepper driver could occur
over a period of time. Care should be taken so that the back EMF does not
exceed the maximum input voltage rating of the MDrive17.
R e c o m m e n d e d I M S P o w e r S u p p l i e s
Listed below is the power supplies recommended for use with the MDrive17.
U n r e g u l a t e d L i n e a r S u p p l y
Input Range
120 VAC Version ................................................................. 102-132 VAC
240 VAC Version ................................................................. 204-264 VAC
Output
No Load Output Voltage* ......................................... 39 VDC @ 0 Amps
Continuous Output Rating* ..................................... 30 VDC @ 1 Amps
Peak Output Rating* ................................................ 25 VDC @ 2 Amps
* All measurements were taken at 25°C, 120 VAC, 60 Hz.
T h e r m a l S p e c i f i c a t i o n s
Because the MDrive consists of two core components, a drive and a motor,
close attention must be paid to the thermal environment where the device is
used. The following maximum temperatures apply to the MDrive17.
Heat Sink Temperature (Max) .......................................................... 85°C
Motor Temperature (Max) ............................................................. 100°C
MDrive Power Supply Specifications
Output Current
Power supply current requirements = 2A (MAX) per MDrive17.
Actual power supply current will depend upon voltage and load.
WARNING! The maximum +48 VDC Input Voltage of the MDrive17
includes Motor Back EMF, Power Supply Ripple and High Line.
R e q u i r e m e n t s
Unregulated DC
±10 %
+12 to +45 VDC
3A Peak
63
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