9-1
PP7,
PP17-I, PP17-II Equipment Manual
Release 06/98
Spare Parts
The
memory module is available as a spare part for all the Push Button Panel
unit versions.
All the parameters concerning the interface to the PLC are stored in the Push
Button Panel memory module. In cases where the unit electronics or the entire
unit are replaced, the interface need not be reconfigured. Only the old memory
module needs to be transferred to the new unit.
If the Push Button Panel memory module is defect, the message
EEPROM
ERR
appears in the display in both normal operation and hardware test mode.
In this case, the memory module must be replaced.
The following spare parts are only available for the PP17-I unit:
Standard keyboard
Electronics
Front panel
It is not necessary to remove the Push Button Panel from the cabinet in order to
install the spare parts. Even the 22.5 mm elements, individually installed and
connected by the customer
, can remain in position.
9
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