12 JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS23x, 34x, 43x
2.1 Power Supply
2.1.1 General Aspects of Power Supply - only MIS23x motors
Powering of the Controller is relatively simple.
To ensure that powering of the Controller is as simple as possible, only a driver and con-
trol voltage are connected to the Controller. Internal supply circuitry ensures the correct
supply voltages for the driver, control circuits, etc.
The motor can be operated with the same power supply if using 12 – 28VDC for both
Driver and control voltage. Often a higher voltage than 28VDC is desired as main supply
since the motor have a better torque performance at higher speed. In this case a separate
control supply (CVI) must be used with max. 28VDC.
NB: for actual connections, see drawing Step motor controllers (SMCxx), page 266
2.1.2 Main Power Supply (P+) - only MIS23x motors
The Driver section requires a supply voltage in the range 12-48VDC nominal. It is strong-
ly recommended to use a voltage as high as possible since it will give the best torque per-
formance of the motor at high speeds.
For optimum performance, it is recommended that a capacitance of minimum 1000µF is
connected to the power supply. It should be mounted as close as possible to the motor.
Similarly, it is recommended that 0.75mm cable is used to connect the power supply to
the Controller. If the Controller supply voltage falls below10V, the internal reset circuitry
will reset the driver. Provision should therefore be made to ensure that the supply volt
-
age is always maintained at a minimum of 12V, even in the event of a mains voltage drop.
The Controller is protected against incorrect polarity connection but not over-voltage.
Warning: Power supply voltage higher than 50VDC will cause damages.
Only MIS23x
Main Power Supply
12-48VDC
MIS23x Motor
Control Voltage
12-28 VDC
+
MIS23x Power Supply
TT2159GB
P-
(GND)
CVI
(Control circuit supply)
P+
(Main supply)
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