User Manual QT series generation 2.5, ID 2021, rev 3.2, January 14, 2022
Page
61 of 88
This chapter describes the differences between a standard actuator and one
with a Dual Power option.
The Dual Power option is a functional extension of an actuator adding 24
V
DC power input to standard 115
V - 230
V AC. This feature might be
combined with Single and Dual CAN configuration.
To operate reliably the Dual Power actuator requires a minimum of 21
V DC
on the terminals. Maximal current consumption is max. 3
A.
To utilize actuators with the Dual Power feature requires thorough system
analysis. The focus of the analysis is voltage drop. Factors contributing, but
not limited to the voltage drop are the following:
•
cross-section of the backbone cable,
•
length of the backbone cable,
•
cross-section of the cable stub,
•
length of the cable stub,
•
maximum of actuators active simultaneously.
The critical system parameter to consider is the lowest allowed battery
voltage. Figure 42 shows a draft of
an installation utilizing Eltorque’s hybrid
cable. The orange lines represent the battery power supply distribution
network. From a battery backup goes backbone to a junction box, located as
close to the actuator(s) as reasonable. From the junction box, a star
connection is established to power the individual actuator.
Figure 42 An example of an installation with Dual Power actuators
