8
Rev. 1.0
8/26/2015
TSM11 Hardware Manual
2.3 Choosing a Power Supply
The main considerations when choosing a power supply are the voltage and current requirements
for the application.
2.3.1 Voltage Selection
The TSM11 is designed to give optimum performance at 24 VDC . The extended range of
operation can be as low as 14VDC minimum and as high as 32 VDC maximum. When operating
below 18VDC, the power supply input may require larger capacitance to prevent under-voltage
and internal-supply alarms. Current spikes may make supply readings erratic. The supply input
cannot go below 14VDC for reliable operation. Absolute minimum power supply input is 14 VDC.
Absolute maximum power supply input is 32VDC at which point an over-voltage alarm and fault
will occur. When using a power supply that is regulated and is near the drive maximum voltage of
32VDC, a voltage clamp may be required to prevent over-voltage when regeneration occurs. The
RC880 Regeneration Clamp is recommended for the TSM11 in this situation (see 3.1 Connect-
ing the Power Supply below). When using an unregulated power supply, make sure the no-load
voltage of the supply does not exceed the drive’s maximum input voltage of 32 VDC.
TSM11 Max Duty cycle vs Speeds at 24VDC operation(40°C)
These charts show the duty cycle of the drive at various speeds and voltages. See also Section
4.4 on Drive/Motor Heating for more information
0
20
40
60
80
100
0
10
20
30
40
50
%
D
ut
y
C
yc
le
Speed (RPS)
TSM11 Max Duty cycle vs Speed
24V 1.5 Amps @Ambient of 40
°C
TSM11-
□
Duty Cycle
