MTS Acumen - Manual (Page 18)

Important:
The C-Stop Interlock action configuration is set with MTS controller software and should not be
changed for typical operations. For information about changing the C-Stop Interlock action
configuration, contact MTS.
C-Stop Action Versus Interlock Action
The primary benefit of the C-Stop Interlock action is that when it is triggered, the controller performs a
control mode switch to stable displacement and the actuator is held in place. The C-Stop Interlock action
does not remove power from the actuator.
The C-Stop Interlock action is appropriate for instances in which limiting actuator movement after the
action is triggered is the primary objective.
In contrast, when an Interlock action is triggered, the controller removes power from the actuator, which
allows the actuator to continue to fall until the mechanical brake engages. This may result in actuator
movement greater than 30 mm (1.2 in.) between the time the detector limit is triggered and when the
mechanical brake engages.
The Interlock action is appropriate for instances in which removing actuator power, regardless of incidental
actuator movement, is the primary objective.
Recommended :
It is important to understand how detector actions affect system operation. In most cases,
MTS recommends using the C-Stop Interlock action for detectors during system setup and
test design for MTS Acumen systems.
Resetting a C-Stop Interlock action
Once a C-Stop Interlock action is triggered, you must click Interlock Reset before you can switch out of
stable displacement, use Manual Command controls, or resume or run a test.
High-Power Prohibit Mode
High-Power Prohibit mode limits maximum actuator speed to 10 mm/sec or less. This mode is applied
when you press the High-Power Prohibit button on the frame-mounted control, or if the door is open on
the optional test area enclosure.
It is recommended that the system be in High-Power Prohibit mode for fixture or specimen loading. In this
mode, if the machine detects a system fault where 10mm/sec may be exceeded, it will remove power from
the actuator. When this occurs, gravity may cause the actuator to drop causing specimen damage before
the brake is applied.
18 | MTS Acumen ™
Safety Overview