Alarms Table - Eliwell Coldface EWHT800LX Series Manual

ALARMS TABLE

This section lists alarms associated with the default configuration of the instrument. For a description of alarms relating to custom configura-
tions, refer to the user manual or contact Eliwell Technical Support
Folder Cause
Pb1 room probe faulty
• measured values are outside operating
E1*
range
• probe faulty/short-circuited/open
Pb2 defrost probe faulty
• measured values are outside operating
E2*
range
• probe faulty/short-circuited/open
E3* Pb3 destratification fan probe faulty
Pb4 NTC condenser fan probe faulty
• Measured values are outside operating
E4*
range
• Probe faulty/short-circuited/open
Pb5 Humidity probe / pressure transducer
E5*
faulty
Pb1 LOW temperature alarm
AL1
• value read by Pb1 < LAL after time of
"tAO".
Pb1 HIGH temperature alarm
AH1 • value read by probe Pb1 > HAL after
time of "tAO".
Pb3 LOW temperature alarm
• value read by Pb3 < LAL with
PbA=1,2*
AL3 • value read by Pb3 < SA3 with PbA=3
and dA3<0**
*after delay equal to tA0
** after delay equal to tA3
Pb3 HIGH temperature alarm
• value read by Pb3 > HAL with
PbA=1,2*
AH3 • value read by PB3 > SA3 with PbA=3
and dA3>0**
*after delay equal to tA0
** after delay equal to tA3
Pb5 LOW humidity alarm
LrH • value read by Pb5 < LHA
*after delay equal to AOH
Pb5 HIGH humidity alarm
HrH • value read by Pb5 > HHA
*after delay equal to AOH
11 - EN
Effects
• Label E1 displayed
• Min/max alarm regulator disabled
• Compressor operation based on parame-
ters "Ont" and "OFt" if set for duty cycle.
• Label E2 displayed
• The Defrost cycle will end due to time-out
(Parameter "dEt")
• Label E3 displayed
• Fans remain ON for time SOn
• Fans remain OFF for time SOF
• Label E4 displayed
• Condenser fans ON depending on F16 and
F20 parameters
• E5 label shown on lower display
• The upper display will show the value read
by the room probe except in the case of
probe errors
• Recording of label AL1 in folder ALr
• No effect on regulation
• Recording of label AH1 in folder ALr
• No effect on regulation
• Recording of label AH3 in folder ALr
• No effect on current regulation
• Recording of label AH3 in folder ALr
• No effect on current regulation
• Recording of label LrH in folder ALr
• No effect on regulation in progress
• Recording of label HrH in folder ALr
• No effect on regulation in progress
Remedy
• Check probe type NTC/PTC (see H00)
• Check the probe wiring
• Replace probe
• Check probe type NTC/PTC (see H00)
• Check the probe wiring
• Replace probe
Set parameters SOn and SOF to switch
the fans ON/OFF in duty cycle mode
• Check probe type NTC/PTC (see H00)
• Check the probe wiring
• Replace probe
• Check probe type (H45)
• Check wiring (2, 3, 4, 5-wire probe)
• Replace probe
• Wait for the temperature value
read by Pb1 to come back above
LAL+AFd
• Wait until temperature value read by
Pb1 returns below HAL-AFd
• Wait for the temperature value read
by Pb3 to come back below:
LAL+AFd with PbA = 1,2
SA3+|dA3| with PbA=3
• Wait for the temperature value read
by Pb3 to come back below:
HAL-AFd with PbA = 1,2
SA3-dA3 with PbA=3
• Wait until humidity value read by
Pb5 returns below LHA+AdH
• Wait until humidity value read by
Pb5 returns below HHA-LdH
EWHT800LX