Eltorque QT250 - B.4.vii. Configurable Parameters

Failsafe Option
User Manual QT250 and QT800 gen 2.5, ID 2021 2.3 20. April 2021
Page 73 of 92
Figure 47: QT250 and QT800 with Failsafe – Space requirements for installation, service
and manual operation
The failsafe actuator has several configurable parameters. The tables below show
the parameters that trigger the failsafe protocol and other important parameters
necessary to adjust for correct error behavior.
Note! For all available parameters, see System Integrators Manual CANopen Interface.
Table 22: Failsafe triggers
Parameter
Action / Purpose
Adjustable Range
Set Failsafe from
IAS/E3C
Manually setting Failsafe for test or
other scenarios
NA
Heartbeat Bad timeout
Initiate Failsafe protocol if the signal is
lost after the predefined time delay.
0-255 seconds
PSU Critical Timeout
Initiate the failsafe protocol if external
power is below critical after the
predefined time delay.
0-255 seconds
UPS Error Timeout
triggered by one or
more of the following
− UPSCOMERR
− TEMPERR
− SOHERR
− SOCERR
The UPS Error Timeout is a common
timer for all internal errors before
triggering of the failsafe protocol.
− PSU Communication error
− Temperature above critical
− State of Health below minimum
− State of Charge below minimum
Disabled (65535) or
adjustable between
0-65534 seconds