Douwe Egberts Cafitesse 700, Back Office Manual

Page: 55 / 265

*errors will be logged ** errors will not be logged *** UI-error messages: higher priority overrules lower priority, with same priority message of first appearance is shown
July 2004 3 - 17
Errors hardware and network
No. Description Over-
rules Set condition Reset condition Remarks Cause Remedy Prio-
rity***
78 I/O module
communication failed
(action aborted) MCM-timeout:
During communication
between the MCM and
modules some signals
could not be sent due to
network failures. No reset required,
message is displayed for
only two seconds Warning, the
current drink
delivery is
stopped. When the error appears
often, the network is not
stable:
1. Influence from outside
causes the instability
of the network.
2. PCBs (MCM, UIB, I/O
modules A, B, C, or P,
LCD) not correctly
connected or
defective
3. Wiring incorrect or
connections defective
1. Check the possibility of
network influence by
other devices.
2. Check connections or
replace the circuit
boards one by one and
check if the error
disappears
3. Check wiring or replace
connections
15
79 I/O module was busy
(action aborted) When an I/O module
indicates during a drink
delivery, that it is busy. No reset required,
message is displayed for
only two seconds Warning, the
current drink
delivery is
stopped. When the error appears
often, the I/O module
activity is not
synchronized correctly
with the MCM:
1. PCBs A, B, C, or P
not inserted correctly
in the rack
2. PCBs A, B, C, or P
defective
1. Insert PCBs A, B, C, or
P correctly in rack.
2. Replace A, B, C, or P
15
80* I/O module A is not
responding 10-26 Software operating
system After ON/OFF/ CLEAR
switch in service mode, if
initialization has
indicated a successful
communication with the
I/O module.
A communication check
is carried out every 30
seconds.
A communi-
cation check is
carried out by
the software
every 30 sec.
After ON/OFF/
CLEAR wait 30
sec. and check,
if the error is
active. 1. Wiring incorrect or
connections defective
2. PCB A incorrectly
inserted in rack
3. PCB A defective
4. Left fuse on switch
mode power pack
defective
1. Check wiring or replace
connections
2. Insert PCB A correctly in
rack
3. Replace PCB A
4. Replace left fuse on
switch mode power pack
220