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09.02
Procedure for replacing EPROMs:
♦ Switch off electronics supply voltage
♦ Undo fixing screws for module CUR above and below the insertion/removal aids.
♦ Remove the module from the electronics box carefully with the help of the insertion/removal aids.
♦ Remove old EPROM carefully from the socket and replace it with a new EPROM. It is important to ensure
that the EPROM is mounted the right way round (pin 1 aligned correctly) and that pins are not bent.
♦ Slide module into the electronics box carefully in the guide rails as far as the stop.
♦ Screw the module into place again using the fixing screws.
♦ After switching the electronics supply voltage on again, wait until the function "generate factory setting" is
complete. Then restore the parameter values in accordance with the logbook or reload the values saved
using DriveMonitor into the unit.
♦ If the parameters are restored in accordance with the logbook, circuit identification (see Section 4.3.9.7)
must be carried out (due to special parameter P772).
8.2.3
Replacing thyristor modules with sizes C and E
The thyristor modules are secured with self-tapping screws. When replacing the thyristor modules, it is
imperative to use original-length screws with locking elements to secure them.
Also use original-length screws when screwing the thyristor modules to the busbars.
Siemens AG
6SE7087-6AK85-1AA0
Rectifier/Regenerating Unit
Operating instructions
AoteWell LTD
AoteWell Automation Sales Team
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Maintenance
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8-7
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