Applied Motion STM23R-2ND - Manual (Page 8)

8
STM23R Hardware Manual 920-0056C
5/5/2015
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 get a switching supply.
And you must decide what size of power supply (in terms of voltage and current) is needed for your applica-
tion.
Applied Motion offers two power supplies that are excellent matches for the STM23R: PS150A24 (24V, 6.3A)
and PS320A48 (48V, 6.7A).
Voltage
Your motor can provide more torque at higher speeds if a higher power supply voltage is used. Please consult
the speed-torque curves later in this manual for guidance.
If you choose an unregulated power supply, make sure the no load voltage of the supply does not exceed 70
volts DC
Current
The charts on the following pages list the maximum current required for each motor at several common power
supply voltages. Please consider this information when choosing a power supply. Full load curves are abbrevi-
ated because of the speed limitation at lower voltages.
1.00
1.50
2.00
2.50
3.00
3.50
Amps
STM23R-2 12V Power Supply Current Full Load
No Load
0.00
0.50
1.00
0 10 20 30 40 50
Speed (RPS)