30
| Tritex
®
TTX Series DC Actuator Installation & Maintenance Instructions
Curtiss-Wright | Rev D | PN75667 | 8/1/22
6.0 STARTUP
6.1 CONSIDERATIONS FOR STARTUP
6.1.1 Safety Considerations
CAUTION!
Do NOT exceed the maximum input
voltage for Tritex TTX Series DC powered actuators (48 Vdc).
6.1.2 Rotary-to-Linear Motion Relationship
The relationship between the rotary motion of the motor
and the linear motion of the actuator is based on the
following parameters:
L
D
= Rev x R
L
S
= [RPM/60] x R
L
F
= [T x (2p x E/R)]
where:
E = Efficiency
L
D
= Linear distance traveled
L
S
= Linear speed
L
F
= Linear force
R = Roller screw lead
REV = Motor revolutions
RPM = Motor revolutions per minute
T = Motor torque
NOTE:
Each of the above relationships requires proper anti-
rotation of the actuator rod.
6.2 GENERAL STARTUP PROCEDURE
IMPORTANT!
Exlar recommends testing new systems prior
to live operation (see Expert Software manual for startup
procedure).
1. A CD is provided with each actuator and contains the Expert
software and manual. The software is also available to
download from www.exlar.com.
2. The Expert software will need to be installed on your PC.
3. Follow the software installation and setup instructions
contained in the Expert Software manual.
NOTES:
• Tritex TTX Series actuators can be operated at current
levels two times the current rating for short amounts of
time.
• When operating the actuator in the peak current range,
follow the duty cycle limits shown in below.
120
100
80
60
40
20
0
0 0.5 1.0 1.5 2.0 2.5 3.0
Normalized Continuous Current (Motor)
% Duty Cycle
Duty Cycle
100.00
34.00
22.00
10.00
4.00
Duty cycle for peak current operation
