Page
64 of 88
User Manual QT series generation 2.5, ID 2021, rev 3.2, January 14, 2022
All batteries and electronic equipment may contain substances harmful to
the environment. Therefore, after removing used equipment, return them for
disposal according to local governmental guidelines.
The failsafe electrical actuator is a functional extension of QT series
generation 2.5 actuators. Physically, the difference is the added failsafe
module between the interface box and the motor unit, also found on the
standard version. This module contains the battery (Lead acid) and the UPS
management system.
When adding this module, the certified temperature rating is reduced, and
the overall size is increased. Still, it enables the internal power source for a
pre-defined operation after a signal or power loss. Both these interruptions
are individually adjustable by a predefined time delay.
Figure 44: Actuator with Failsafe option
The bottom views for the motor and gear housing and the communication
interface box are identical to the standard version shown in Figure 7 and
Figure 8 on pages 21 and 21.
Due to the introduction of both a battery and a security protocol (the failsafe
protocol), the product installation needs to be planned well to avoid
unwanted behavior/accidents. This chapter covers
Eltorque’s
input for
planning. Eltorque can also quote assistance for both the planning activities
and the installation activities if requested.
