Physio Control lucas 2 - Protective CPU Error Codes

LUCAS® 2 Chest Compression System – Service Manual
3323809-001, © 2017 Physio-Control, Inc.
30
5.3.2. Error Codes from The Protective CPU
Error Code
Explanation
Probable cause
Module to check /
replace
T1_RAM
Internal RAM test
detect fault at start.
Protective CPU fault.
Protective board
T1_E2_PROM
Internal E2 prom
test detect fault at
start.
Protective CPU fault.
Protective board
T1_P_SOUND_CHEC
K
Buzzer fault
Buzzer fault
Protective board
T1_PISTON_REVERS
E_ERROR
Reverse test not
done correct at start
Motor not moved
correct or fault
current read.
Protective board, check
cable between boards or
Control board (P45 fault)
T1_PISTON_RELEAS
E_ERROR
Protective release
line operation fault
at start
Current detected at
disable test or moved
to low at enable test.
Check cable between
boards, Protective board
or Control board (P45
fault)
TO_DEEP_COMPRE
SSION
To deep
compression
detected in active
mode.
Protective
potentiometer fault.
Jam of compression
module at run with
no load.
Check smoothness in
compression module,
Protective
potentiometer.
TO_SHALLOW _COM
PRESSION
To shallow
compression
detected in active
mode.
Protective
potentiometer fault.
Compression module
runs with too high
load.
Check load or Protective
potentiometer at
different heights.
INTERNAL_TEMPER
ATURE
Protective board
temperature
detected > 85°C
Fan or Protective
board fault
Fan, Protective board
PISTON_TIME_OUT
Protective
potentiometer not
detected a
movement of 50%
stroke for 10s.
Protective
potentiometer fault.
To high load. I2C
communication fault
at mode change.
Protective potentiometer
at different heights.
Check for
communication time
outs.
CONTROL_LIFETICK
I2C communication
fault with Control
CPU
I2C communication
fault at mode
change.
Other fault
detected by Control.
Check if other fault is
detected by Control.
Check cable between
boards.
ALARM_TYPE_ROM_
TEST
Internal ROM test
detect fault at start.
Protective CPU fault.
Protective board
CHARGER_STOP
Charger fault
detected
See Charger errors
See Charger errors
CONTROL STOP
Control system fault
detected
See Control errors
See Control errors
Figure 5.3-2: Table 1 – Error code Protective CPU