Ex p control unit
Motor purge controller
Safety
Rev. 0
01-37A2-7D0003_Operating instructions_MPC_20210923_0_en.docx
Page 13 of 96
Repairs
Repairs to explosion-protected equipment may only be carried out by
authorised persons using original spare parts and in line with the state of
the art. The applicable regulations must be observed.
Repairs must be carried out in accordance with EN / IEC 60079-19 /
ГОСТ
31610.19-2014
In the case of SIL-qualified devices, only corresponding electronic inserts
with SIL qualification may be used.
All application-specific settings must be re-entered. This is why you have
to start up again after repairs. If you saved the parameterisation data when
you started up the Ex p control unit for the first time, you can transfer
them back to the replacement control unit. You will find detailed
information on replacing spare parts in these operating instructions. You
must verify the parameters after starting up or after transferring the
parameterisation data. Only then is the device ready for operation again.
In Ex applications, only one device and one electronics module with the
appropriate Ex approval may be used. Order the spare parts from your
distributor. The serial number can be found on the type label of the device,
inside the housing.
2.5
Avoidance of property damage
Short circuit due to improper connection
An incorrect supply connection leads to the destruction of the electronics and
invalidates the guarantee.
Triggering of the safety function
Switching on again too quickly after switching off can result in internal voltage
peaks in the power supply unit and thus trigger the safety function. After
switching off the voltage, wait at least 30 seconds before switching it on again.
EMV-compliant connection
For the safe functioning of the Ex p control unit, it is important that the wiring is
EMC-compliant. This includes observing the chapter on electrical connections
with regard to EMC-compliant wiring and inductive loads.
Storage at too high a temperature
Please store the Ex p control unit at the intended storage temperature,
otherwise the electronics or seals may be damaged. Provide adequate air
conditioning at high storage temperatures.
