88226673-01-03 Technical Reference Manual - (Production Iss 03 November 2020).pdf - 第25页
Fault I nd ication - ACU MCB Has Tripped YES NO YES LED 1 Run LED 2 Probe LED 3 N/A LED 4 N/A LED 5 ACU ON LED 6 Heater ON LED 7 System Tripped LED 8 Cond. bottle needs emptying LED 9 Cond. bottle is full LED 10 Cond bo …
Issue 03 November 2020
Electrical Faults
Error
Remedy
Red Beacon (No Blue)
(TCM Shutdown)
Check ACU circuit breaker is closed.
Check heater circuit breaker is closed
Heater Enclosure Thermal Trip may have
operated due to an over temperature
condition.
Investigate cause of failure. ESCALATE
No display on Beacon or
Controller
Check Control Module circuit breaker is
closed.
FIG 28
Circuit Breakers (located inside the electrical compartment) protect components and
wiring in the 24Vdc Control (C1), Heater (C10), and Air Conditioner Unit (C6) circuits
from excessive currents. Should a circuit breaker open, the cause must be investigated
before closing and re-energizing the circuit. ESCALATE if fault persists and Circuit
Breaker will not remain closed.
Diagnostic Flow Charts
Flow charts on following pages
WARNING
ELECTRICAL HAZARD. Ensure Isolator is in the OFF
position before removing access panel.
C1 C10
C6
Fault Indication - ACU MCB Has
Tripped
YES
NO
YES
LED 1
Run
LED 2
Probe
LED 3
N/A
LED 4
N/A
LED 5
ACU ON
LED 6
Heater ON
LED 7
System Tripped
LED 8
Cond. bottle needs emptying
LED 9
Cond. bottle is full
LED 10
Cond bottle overflow
Check mains supply voltage is within
operating range of 207 – 253V.
Isolate mains supply from TM TCM, reset
6A ACU MCB and power up TM TCM.
Is the ACU functioning correctly now?
Is fault indication still present?
Contact an Engineer
Use TM TCM CCT DWG 226671 as reference for further
fault finding.
Use TM TCM CCT DWG 226671 as reference for
further fault finding.
Check following components for failure:
Control PCB Part No. 181984
6A MCB Part No. 181985
Contactor Part No. 181989.
Change SV to be
within + or - 3°C of
ambient.
Are all printer covers fitted including side
safety covers?
YES
NO
YES
Are both the Intake and exhaust vents clear of
obstructions?
Is the mains supply to the TCM within
specification (230V +/- 10% (207V to 253V
working range) 50/60Hz?
Rectify
Amber Beacon ON for more than 30 minutes whilst TM TCM cooling down to SV
YES
NO
Is the SV (Set Value) within + or - 3°C of
the factory ambient temperature?
NO
NO
Indicating
Strip not fitted? Order
Part No. 215458
LOWER
HIGHER
Fit temperature sensor
upgrade.
Refer to Web for latest
MPU
Contact an Engineer
LED 1
Run
LED 2
Probe
LED 3
N/A
LED 4
N/A
LED 5
ACU ON
LED 6
Heater ON
LED 7
System Tripped
LED 8
Cond. bottle needs emptying
LED 9
Cond. bottle is full
LED 10
Cond bottle overflow
Use TM TCM CCT DWG 226671 as reference for
further fault finding.
YES
Check temperature of the processed air entering the
printer.
See Temperature sensitive label located on the TM TCM
Exhaust Air deflector. Green coloured block indicates
temperature. With heaters off a correctly functioning ACU
reading is 10 –15°C.
Is temperature higher or lower than SV (Set Value)?