The Eltorque QT250 and QT800 actuators are available with more than one
safety/emergency solution.
The standard product comes with:
• An emergency hand wheel for manual operation
• A self-lock function that ensures that the actuator is kept in position.
Additionally, the following options are available:
• A Dual CAN option, providing a more robust CAN network.
• A Failsafe option, providing and UPS back-up battery.
This appendix describes the Failsafe option. The Dual CAN option is described in
Appendix A Dual CAN Option on page 59.
Note! It is not possible to upgrade an already installed standard actuator with Failsafe
or Dual CAN options. This must be included when ordering.
Figure 40: Actuator with Failsafe option