6-8
PCS2 Service Manual
CODE
TEXT MESSAGE
DESCRIPTION
SUGGESTED RESOLUTION
17
19
20
21
22
23
WATCHDOG
ERROR
LOW PRESSURE
ERROR
LOW PRESSURE
ERROR
LOW PRESSURE
ERROR
LOW PRESSURE
ERROR
LOW PRESSURE
ERROR
Safety system did not
post fault to register
during system start-
up watchdog test.
Safety system relay
did not open during
system start-up low
pressure test.
Safety system relay
did not close during
system start-up low
pressure test.
Safety system did not
post fault to register
during system start-
up low pressure test.
DPM low pressure
load test produced a
value that is out of
the range of 1265 -
1620.
DPM low pressure
load test produced a
value that was ± 7%
from calibrated
value.
1. Replace safety card.
2. Replace processor card. Using Utilities, calibrate all the
components under A/D, centrifuge, safety system, and
configure the language. Reset protocol parameters
(MODIFY key), if parameters were different from
default values.
1. Replace driver card.
2. Replace safety card.
1. Replace driver card.
2. Replace safety card.
1. Replace safety card.
2. Replace processor card. Using Utilities, calibrate all the
components under A/D, centrifuge, safety system, and
configure the language. Reset protocol parameters
(MODIFY key), if parameters were different from
default values.
1. Using Diagnostics in Utilities, load the DPM for low
pressure and measure the DPM signal at P502 pin 1 of
the backplane card. Acceptable range for low reading is
1.54 - 1.98 VDC (1265 - 1620). If analog voltage
exceeds range, replace DPM.
2. Replace processor card. Using Utilities, calibrate all the
components under A/D, centrifuge, safety system, and
configure the language. Reset protocol parameters
(MODIFY key), if parameters were different from
default values.
1. Recalibrate the safety system in Utilities and verify that
low pressure digital reading is between (1265 - 1620). If
digital reading is out of range or grossly fluctuating,
replace DPM.
2. Replace processor card. Using Utilities, calibrate all the
components under A/D, centrifuge, safety system, and
configure the language. Reset protocol parameters
(MODIFY key), if parameters were different from
default values.
Содержание PCS 2
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