Checking The Safety Devices; Protective Circuit - Zeiss CONTURA Operating Instructions Manual

Checking the safety devices

Checking the safety devices

2-16

Protective circuit

Function of the protective circuit
The CMM is provided with a protective circuit monitoring the driving
forces during the movements of the bridge in the X and Y axes. The
thrust force monitoring is effective in all operating modes.
If the travel movement in the X or Y axis is hindered by a collision and
the thrust forces exceed a value of approx.150 N, the drives must switch
off automatically.
CAUTION
Impaired safety if the safety device has not been tested.
Failure of the protective circuit may cause injuries, such as crushing of
parts of the body.
The function of the protective circuit must be checked regularly in order
to guarantee safe operation of the CMM.
— Check the function of the protective circuit every 3 months.
Checking the protective circuit
X-Axis
Components may be damaged by improper handling.
The probe and the ram could be damaged.
ü You may only push against the housing cover of the ram.
— Do not push against the ram nor against the probe.
1 Move the bridge to the front until you can touch the cover of the
ram with your hand.
2 Move the probe in the X axis.
— Try to stop the movement (v
marked spot on the housing cover of the ram (F).
This increases the thrust of the drives. If the shearing force exceeds a
certain value, all drives switch off.
61211-1310402
) manually by pushing against the
X
CONTURA