Mode Of Operation - Festo MSE6-E2M Original Instructions Manual

2 Overview
2.1.2

Mode of operation

Fig. 2.2 Typical mounting position (as an example at the bus node CPX-FB33)
The MSE6-E2M is typically assembled behind the service unit.
The module allows venting of the downstream system, both in the "Pressurisation" state
and in the "Blocking" state through a reverse flow (2 à 1). In the blocking state, the re­
verse flow is reduced. For this reason, for more rapid venting, the MSE6-E2M should be in
the "Pressurisation" state.
The key functions are:
Standby detection and automatic blocking of the compressed air supply
The MSE6-E2M uses modifiable parameters to detect production down times of a pneumatic system.
The system is separated from the compressed air supply using the 2/2 shut-off valve, without venting
the downstream system. This avoids additional air consumption through leakages. If production is to
continue on the system, then it must be signaled to the MSE6-E2M. The shut-off valve opens and the
system is again supplied with compressed air.
Automatic blocking of the compressed air supply can be activated and deactivated by the user. In both
states, the shut-off valve can be controlled directly by the PLC.
Pressure tightness testing
When in the blocked state, the MSE6-E2M measures the pressure curve over time.
Even in well-serviced systems, the pressure falls continuously due to leakages. The fewer leakages the
system has, the slower the pressure drop will be. The measured pressure change serves as a measure
of the leakage existing in the system. If the parameterised limit value is exceeded, the device will out­
put a diagnostic message.
Pressure recording
The MSE6-E2M continuously measures the output pressure, prepares the data and makes it available
cyclically.
To detect excessive operating pressures, the MSE6-E2M offers the option of parameterising limit values
for pressure. If the parameterised limit value is exceeded, the device will output a diagnostic message.
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Machine/system
Festo – MSE6-E2M-SY-EN – 1703d – English