SSZ SSZ-BAT, Системное руководство, Страница: 31 / 66

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!!
The system does not have an auto-check function. According to the level
of safety assurance - PLd, the system in the standby mode is controlled
by the unit.
Controllers
10 11 13 14
9 12
99 mm
112 mm
23 mm
6. Storage and transport
To protect the safety control units from damages these should be transported and stored in
the primary packaging material.
Storage
In closed, dry and draughty, free of direct atmospheric influences places. The temperature of
the store should be not lower than -10° C and not higher than 70° C. The relative air humidity
not higher as 80%. Protection class: IP 30
7. Maintenance
The control unit is maintenance free. Repeat the operational test monthly.
8. Acceptance procedure
1. Pressure-sensitive device assembly and functionality check acc. to the requirements in
the Operation Manual of the chosen SSZ pressure-sensitive device.
2. Checking for correct cabling from the control unit to the SSZ pressure-sensitive device; a
particular attention shall be paid to redundancy preservation in the system!
3. Checking of the safety function - acc. to the safety documen tation.
4. Measurement of the entire system‘s response time and „full time stop“, as well as functio-
nality (lock or release) check, caused by the activation of an SSZ pressure-sensitive device.
The results should be compared to the specification requirements. All results should be
written into the documentation of the machine.
5. A special attention shall be paid to the signalling system in the SSZ control unit (one red
and two green LEDs), indicating either normal operation or failure of the system!
lf none of the LEDs is active, the supply of the control unit should be checked. lf the supply
connection to the control unit is cor rect, while its functionality still fails, it is necessary to
contact the manufacturer.
The same acceptance procedure shall be valid when particular, individual components are
replaced (either of SSZ pressure-sen sitive device or a replacement of the SSZ control unit).
The lnstaller shall be obliged to fill in an identification form of an installed device. In order to
ensure a correct ldentification, please enter in the form, the number from the hologram on
the pressure-sensitive device and on the SSZ control unit.