ABB COMMANDER 1911, Руководство по эксплуатации

Страница: 40 / 44

38
Symptom Possible Cause Action
Does not power up a) Internal fuse (if fitted) is blown
b) Internal power switch (if fitted) is OFF
c) Power supply connections are
incorrect a) Check wiring, rectify fault and replace
fuse
b) Turn power switch ON
c) Check connections
Chart does not appear to move a) Very slow chart speed selected
b) Chart stop function enabled a) Select required chart speed in
Set Up
Chart Page
b) De-activate source being used to stop
chart – see
Set Up Chart Page
Pens in recording position but do not drop
onto paper Chart stop function enabled De-activate source used to stop chart – see
Set Up Chart Page
Red pen does not move beyond 94%
position on chart When real time event pen is fitted the red pen
cannot go beyond 94% to prevent pens
clashing Use chart range which prevents the need to go
beyond 94% of maximum on chart
Pen lift switch on front panel does not
work Pen lift switch is disabled Enable pen-lift switch in
Set Up Chart Page
Pens do not remain lifted when pen lift key
is used Auto pen drop feature is enabled Disable auto pen drop in
Set Up Chart Page
if
this is not required
Analog inputs are slow to respond A large filter time has is set Set digital filter value to give required response
in
Set Up Inputs
Time or date incorrect Not set for correct local time Set correct time and date in
Set Up Clock
Page
– refer to
Advanced Software Manual
Totalizers cannot be set to STOP or GO Operator STOP/GO selection is not enabled
in the
OPERATOR LEVEL
Enable counter STOP/GO in the
Set Up
Totals Page
Totalizer cannot be set to STOP Digital signal assigned to the total STOP/GO
function is active De-activate digital signal assigned to total
STOP/GO function
External relays connected to relays in
instrument fail to de-energize Arc suppression capacitors are provided
across the relay contacts and capacitor
leakage current may be sufficient to prevent
an external relay from de-energizing Remove the arc suppression components –
IC4 and IC5 on mainboard
IC6 and IC7 on standard I/O and analog relay
IC3 to IC10 on 4 relay module
Pens return to a different position after a
pen-lift or power down Pens are interfering with one another due to
incorrect setting of pens Each pen requires the force of 1 gram to lift it
off the paper. Carefully bend arm (up or down)
close to the plastic moulding to give correct
setting
7 SIMPLE FAULT FINDING