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NI ISM-7413 Ethernet Integrated Stepper User Manual
Reference Materials
Tor
q
ue-Speed Curves
Figure 27.
Tor
q
ue-Speed Curve for NI ISM-7413
Heating
Step motors convert electrical power from the driver into mechanical power to move a load.
Because step motors are not perfectly efficient, some of the electrical power turns into heat on
its way through the motor. This heating depends on the motor speed and power supply voltage
rather than load. There are certain combinations of speed and voltage at which you can
continuously operate a motor without damage.
The drive electronics of the NI ISM-7413 also dissipate power. The heat produced by the
electronics is dependent on power supply voltage and motor speed.
The following figures show the maximum duty cycle versus speed for the NI ISM-7413 at
commonly used power supply voltages. Refer to these curves when planning your application.
Use the charts depicting typical power dissipation when planning the thermal design of your
application.
RP
S
oz-in
3
50
3
00
250
200
150
100
50
0
0
10
20
3
0
40
50
12 V
24 V
4
8
V
70 V
Summary of Contents for ISM-7413
Page 1: ...ISM 7413...
