Exlar Tritex II DC Series, Installation And Service Manual

Page: 24 / 70

Curtiss-Wright | Tritex II DC Rev. J PN49220 2/8/2016 24
Electrical Installation
Introduction
All of the required power components and motion processor are
contained in the actuator or drive housing.
Main Power Supply Selection
The Tritex actuator requires DC power from a power supply or
batteries. The actuator will operate on voltages from 12-48V DC nominal.
The continuous operating range is 10-53V DC. If the bus voltage rises
above 85 V DC a High Bus Fault will occur and the drive will disable. The
voltage threshold may be set lower through a user parameter where
appropriate to protect a power supply from overvoltage during regen.
The power supply output current rating depends on the maximum
actuator power required for the installation.
A 48V supply will allow the motor to deliver maximum rated speed,
(specifications in Overview section) a 24V supply will allow the motor to
deliver ½ the maximum rated speed, and a 12V Supply will allow the
motor to deliver ¼ the maximum rated speed.
Power supply selection and connection is complicated by three factors
associated with variable speed servo drives: high peak loads, power
regeneration (regen) and switching frequency ripple current. Peak loads
and regen will depend on the application. Ripple current can adversely
affect some power supplies.