Mecmesin 432-680, Installation & Operation Manual

Page: 42 / 65

Mecmesin

42 Mecmesin Interlocked Machine Guarding
6.7 Checking the Interlock Function and Operation
Once the installation is complete, the next step is to test the interlock circuit. First, ensure
that all required cables have been connected to the machine and the device is switched on
and ready to use. The interlock’s functionality is described below.
A set of interlock keys are provided, these are used to enable and disable the interlock
circuit.
For single column test stands below 5 kN, an interlock override plug is provided with the
test stand. This is fitted to the MultiTest’s rear panel connector to disable the test stand’s
interlock circuit instead of using a key switch.
6.7.1 Interlock Key Switch Set to ‘0’ (Override Plug Connected)
With the key switch set to the
‘0’
position (key horizontal), the
interlock circuit is disabled and the guard door can be opened
without error.
The test stand can be moved up or down freely and cannot be
interrupted by the interlocked guard.
For single column test stands below 5 kN, the interlock
override plug should be fitted in place of the guard’s connector.
This will allow the system to be moved freely without
interruption from the interlock circuit.
6.7.2 Interlock Key Switch Set to ‘1’ (Interlocked Guard Connected)
With the interlock cable fitted and the key switch set to the
‘1’
position (key vertical), the interlock circuit function is enabled.
For single column test stands below 5 kN, simply fit the
interlocked guard’s connector in place of the override plug.
Opening the door will inhibit the motor drive of the test stand,
and a warning will be displayed on the front panel (OmniTest
and
dV
test stands only) and software (if connected). The user
can not move the machine. If a test is in operation as the door is
opened, the test will be immediately stopped.
It is recommended that after successful completion of installation and training
that the interlock switch is set to key position ‘1’ (interlocked guard connected
for MultiTest
test stands below 5 kN).
The key (or override plug) should then be removed and given to an assigned
supervisor or safety officer within the organisation and stored away. The key
(or override plug) is still required for calibration and service requirements.