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SIPLACE 80 S-20/F4 Service Manual 7 Components Table Edition 03/97 7.5 Communications Unit 7 - 23 7.5.2.2 Checking and Replacing Fuse F1 The error messag e "Comm unicati on with tabl e interrup ted" m ay point …
7 Components Table SIPLACE 80 S-20/F4 Service Manual
7.5 Communications Unit Edition 03/97
7 - 22
DANGER QQQ
Switch off the machine at the main switch and disconnect it from the main power supply.
● Pull out the plug X37 on the right-hand side of the machine base and also the power plug of the compo-
nents changeover table in question.
● Disconnect all plug connections of the modules at the connections panel of the communications unit:
The tapes must remain in position!
● Remove the front panel of the communications unit (6 recessed head screws M3).
● The back-up battery is located on the underside of the processor board = top board (see Fig. 7.5.1):
Slide the back-up battery forwards and out of its holder and slide in the new battery making sure the polar-
ity is correct: minus-pole points upwards! (see marking on the holder).
Fig. 7.5.1 Structure of the communications unit, replacement of the back-up battery
Refit the front panel and plug the feeder modules back into their connection sockets in the communications
unit.
● Reconnect the components changeover table back to plugs X37 and to the mains plug.
● Switch on the machine and start placement sequence. The components table will be loaded automatically
at the new start: in other words, the table program will be loaded into the memory of the components table
controller.
SIPLACE 80 S-20/F4 Service Manual 7 Components Table
Edition 03/97 7.5 Communications Unit
7 - 23
7.5.2.2 Checking and Replacing Fuse F1
The error message "Communication with table interrupted" may point to the fuse F1 being defective.
● Select "Abort placement". The picked-up components will be returned.
● Switch off the machine at the main switch.
● Unscrew and remove the fuse F1 which is to be found on the right-hand side of the connections panel (see
Fig. 7.5.1):
– The fuse has blown:
● First correct the cause of this:
– Short circuit in the feeder module: check this, for example, by connecting to the external power
supply.
– Short circuit within the empty tape cutting device: See Section 7.6.2.1 ’Checking the + 30 V Elec-
tric Circuit : Fuse, Plug Connections, Motor Activation, Solenoid Valve’
● Replace accordingly the fuse F1: 3.16 AT.
● First make sure the plug connections of the components changeover table at the machine base (X37 and
mains plug) are seated firmly.
● Switch the machine on and start the placement sequence.
– The fuse has not blown: proceed as described in the next section.
7.5.2.3 Locating an Interruption in Cable Y559-W1 and the Communications Unit
● The machine was already switched off during fault location work (see above).
● Pull out the plug X37 (Components table interface cable Y559-W1) on the right of the machine base.
● Remove the front panel of the communications unit (6 recessed head screws M3).
● Pull the boards (= one unit) a little towards you and disconnect the plug connection of the components
table interface cable Y559-W1 which enters the unit through a cable penetration at the back.
● In the following inspection refer to the circuit diagram 1710460-Y0559-...-L-. (circuit diagrams folder):
Check the cable Y559-W1 for breaks using an ohmmeter (acoustical signal upon if there is continuity):
– Cable break: replace the cable Y559-W1 as described in the section below.
– No break: proceed as described below:
● For test purposes install a new communications unit (see Section 7.5.2.7 ’Replacing the Communications
Unit’).
● Connect up the components changeover table on the right-hand side of the machine base (X37, mains
plug, and if applicable pneumatics connection).
● Slide in the side cover, if applicable, and close the guard; switch the machine on.
7 Components Table SIPLACE 80 S-20/F4 Service Manual
7.5 Communications Unit Edition 03/97
7 - 24
● Make sure that the components changeover table functions correctly with the new communications unit.
Please note the following note.
NOTE:
The error message "Communication with table interrupted" can occur both at starting and also during the
placement sequence at component pick-up from this table. For this reason, to check this start a (self-writ-
ten) placement program with components being picked up from the location which is to be tested.
If the SITEST program is used for testing, no corresponding error message will be issued.
– No error message after replacement of the components changeover tables: start the placement
sequence.
7.5.2.4 Replacing Cable Y559-W1
● Open the protective cover, pull the protective cover at the components loading point upwards and away.
Now move the placement head by hand until it is within the PCB transportation area:
Please note at this time the CAUTION note in Section 12.2 "Fault characteristics"!
● Cut off the empty tapes - if this has not already been done- at the front end of the module. All modules and
the tape reels will remain where they are in order that their allocations do not get changed.
NOTE:
If you have already unintentionally removed the tape reels, to restore their previous allocations proceed as
described in the User Manual, Section 9 , under "Components tables".
● Open the clamping lever, undo the plug connections (X37, mains plug and, if applicable, the pneumatics
connection) at the machine base and with a lift truck carefully remove the components changeover table
as described in the User Manual, Section 8.
● The front panel of the communications unit has already been removed in the course of fault location (see
Section 7.2 ’Fault Characteristics’ and the plug connection of the cable Y559 -W1 in the communications
unit has been disconnected.
● Remove the defective cable, install the new cable Y559-W1, reconnect the plug connection in the commu-
nications unit, making sure that it is firmly seated.
● Refit the components changeover table, close the clamping elements, reconnect the plug connections
(X37, mains plug and, if applicable, the pneumatics connection) at the machine base.
● Switch on the machine and start the placement sequence.