Applied-motion STM23C-3CE Bedienungsanleitung PDF herunterladen (Seite 9)

Choosing a Power Supply

When choosing a power supply, there are many things to consider. If you are manufacturing

equipment that will be sold to others, you probably want a supply with all the safety agency approvals. If size and

weight are an issue use a switching supply.

You must also decide what size of power supply (in terms of voltage and current) is needed for your application.

Voltage

e STM23 series drives are designed to give optimum performance between 24 and 48 volts DC. Choosing the

voltage depends on the performance needed and Motor+Drive heating that is acceptable and/or does not cause

a drive over-temperature. Higher voltages will give higher speed performance but will cause the Motor+Drive to

operate at higher temperatures. Using power supplies with voltage outputs that are near the drive maximum may

reduce the operational duty-cycle signicantly. See the chart below to determine thermal performance at dierent

power supply voltages

If you choose an unregulated power supply, make sure the no load voltage of the supply

does not exceed the drive’s maximum input voltage specication.

STM23-3 Max Duty cycle vs Speed

5 Amps @Ambient of 40°C

Mounted to a 6.4" x 6.4" x .25" Aluminum Plate

100

0 10 20 30 40 50

Speed (RPS)

% Duty Cycle

12V Duty Cycle

24V Duty Cycle

48V Duty Cycle

65V Duty Cycle

STM23-2 Max Duty cycle vs Speed

5 Amps @Ambient of 40°C

Mounted to a 6.4" x 6.4" x .25" Aluminum Plate

100

0 10 20 30 40 50

Speed (RPS)

% Duty Cycle

12V Duty Cycle

24V Duty Cycle

48V Duty Cycle

65V Duty Cycle

STM23 Hardware Manual

920-0021F

2/14/2012

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Applied-motion STM23C-3CE Bedienungsanleitung Seite 9