Huntleigh DA100PB, Service Manual, Page: 71 / 73

Spare Parts
771402-2 dopplex ABIlity Service Manual
71
Internal
Fault Code
Test Fault
Code (FF)
Source
(SS)
Description
009 04 04 Arm Deflation Failure
05 Left Ankle Deflation Failure
06 Right Ankle Deflation Failure
06 04 Arm Dump Failure
07 Ankle Dump Failure
Table 3: Test Fault Codes
Notes:
•
Deflation failures can arise from either pneumatic failure or an excessively long deflation period in
excess of 60 seconds (The later suggesting external influence).
•
Dump failures arise when any of the arm or ankle cuffs have failed to vent to below 15 mmHg. For the
arms, this check is performed following the arm calculation phase and for the ankles, a maximum time
of 50 seconds is allowed following completion of the deflation phase before fault triggering and a vent
phase commencing using the bleed valves.
14.3.10 Internal Fault 010 (Hard): Timer Array Full Fault
This fault should not occur in normal use.
14.3.11 Internal Fault 011 (Hard): Stack Full Fault
This fault should not occur in normal use.
14.3.12 Internal Fault 012 (Hard): CPLD Trigger Fault
The CPLD has gone into fault mode and the current test has exceeded 4 minutes in length, or if the test has
entered a second phase of inflation, the second phase has exceeded 4 minutes in length. At this point, the
electromechanical supply has been de-activated which allows all cuffs to vent and the unit operation halts
pending a reboot following a 30 second CPLD timed period.
14.3.13 Internal Fault 013 (Hard): CPLD Pre-Trigger Capture
The CPLD pre-trigger pre-empts the CPLD trigger by monitoring the test time; if test time exceeds 3m45s in
length, and again for the second inflation if required, the test will abort and deflate the cuffs sequentially,
preventing occlusion pressure reaching the detect chambers.
14.3.14 Internal Fault 014 (Hard): Memory Access Fault
This fault should not occur in normal use.
14.3.15 Internal Fault 015 (Hard): Electromechanical Supply Failure
The electromechanical supply is protected by a fuse and switched by a FET controlled by the microcontroller via
the CPLD. Feedback exists allowing the microcontroller to check the status of the supply. This applies for both
enabling and disabling the supply as a safety feature, and provides feedback as to either fuse or FET failure, an
important feature of which is checking the FET is able to disable the supply in the event of CPLD triggering.