CT-600-2
71
No.
Function
Description
Related
alarms,
warnings
(see 14.1)
Related
param.
(see 13.1)
Related
timers
(see 13.2)
period. When no compressor eco-valve
is enabled, then an alarm will be issued
when the high level sensor detects
liquid refrigerant.
2.24 Eco system
superheat low
Surveillance for low eco system suction
superheat. A warning is issued when
the warning limit is exceeded. An alarm
is issued when the alarm limit is
exceeded (after timer delay). Only
active when at least one compressor is
running with eco-valve enabled and
timer delayed after start of liquid
injection.
82
139, 140
18, 21
2.25 Eco system
superheat high
Surveillance for high eco system
suction superheat. A warning is issued
when the warning limit is exceeded. An
alarm is issued when the alarm limit is
exceeded. Only active when at least
one compressor is running with eco-
valve enabled and timer delayed after
start of liquid injection.
83
141, 142
21
2.26 Motor feedback
low
Surveillance for run feedback of the
motor: run feedback is negative when
run status from CM-SW-01 does not
correspond to status of start signal and
when deviation between actual and set
running speed is more than 5%. A
warning is issued when the run
feedback is negative for the duration of
the timer. At start of compressor, the
timer duration is trippled.
101, 102,
103
1, 44
30
2.27 Motor/drive
error/PTC
Surveillance of the digital error signal
from the variable speed drive or
softstarter. An alarm is issued when the
digital signal indicates alarm.
111, 112,
113
