Shimadzu AGS-100NX, Instruction Manual

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Chapter 3 Basic Instructions
3-16
5. Safety Features
(1) Contact Load Function
If more than a given level in load fluctuations is sensed during return or jog movement
operations the crosshead is stopped. If an unexpected accident should occur, such as a
collision with a jig, this function increases safety by stopping the crosshead as early as
possible.
Due to the following limitations, this function cannot ensure that collisions or overloading
will not occur within the test space.
1. The magnitude of the force detected (contact load) depends on the load cell capacity.
Load cells with capacity 5 kN or greater: 1% of load cell capacity
Load cells with capacity 1 kN or less: 10% of load cell capacity
2. Due to overshooting from a detection response between 0.5 and 1 second, danger
cannot be eliminated.
3. To improve safety and operating convenience when overloaded, movement in the
unloading direction is not stopped. Differentiating between directions is determined by
the UP START/DOWN START method setting. Detection is triggered when the load
passes zero and a negative load increases.
4. The contact load function cannot be activated during about the first second after starting
movement. Therefore, it is nonfunctional when moving a little at a time, such as when
inching with jog operation. Also, it will not function for about 1 second even if a load is
already applied.
<Activation of Safety Features>
A beep sound is emitted and the crosshead is stopped whenever a safety feature is
activated. Also, alarm code 205 is displayed, which can be confirmed via the alarm menu.
(2) Overload Detection Feature
If a load is applied to a load cell that is greater than

150% of its rating or

12 kN, the
AGS-X unit hardware instantly shuts OFF the servo motor.
When this function is activated, only jog operations can be used to remove the load.