Super Systems 3 Series User Manual
Page 42

Operations Manual
Series 3
42
9.2
Current Transformer Input Parameters (Current Transformer is not available)
This is not available on Series 3 controllers.
Measures, via an external current transformer, the current flowing through the electrical load when the heat output is ‘on’ (load
current) and also when it is ‘off’ (leakage current).
Alarm
If the load current is lower than a threshold limit or the leakage current is higher than a threshold limit,
then an alarm triggers. The hysteresis to exit from either of these alarm conditions is fixed at 2% of the
current transformer span.
Full scale value
Selectable from 10 to 1000A
CURRENT TRANSFORMER LIST ‘C T - i N P ’
Name
Scrolling Display
Parameter Description
Value
Default
Access Level
Ct.Id
MODULE TYPE
CT module identity
Ct.In
CT input circuit fitted
Conf read only
CT.SRC
CT SOURCE
Selects the output controlling the
current measured by the CT input.
The source can only be selected if
the output has been configured for
Heat or Cool
none
None
IO-1
Input/output 1
OP-2
Output 2
aa
AA Relay
CT.RNG
CT RANGE
Sets the CT inputs range
0 to CT full scale value (1000)
Conf
CT.LAT
CT ALARM
LATCH TYPE
To configure the latch mode of the
CT input alarm.
A description of alarm latching is
given in the alarm section
nonE
No latching
no
Conf if CT alarm
enabled
Auto
Latched with automatic
reset
man
Latched with manual reset
Ld.alm
LOAD CURRENT
THRESHOLD
Load open circuit alarm threshold –
low alarm
Off
to CT full scale value (settable to
3000)
Read only
LK.ALM
LEAK CURRENT
THRESHOLD
Leakage current in the off state
alarm threshold – high alarm
Off
to CT full scale value (settable to
3000)
Read only
Hc.alm
OVER
CURRENT
THRESHOLD
Overcurrent threshold – high alarm
Off
to CT full scale value (settable to
3000)
LD.AMP
LOAD CURRENT
Measured load current
L3 if CT input
enabled
LK.AMP
LEAK CURRENT
CT input leakage current
L3 if CT input
enabled
CT.MTR
CT METER RANGE
To set the range of the meter.
0 to 1000
L3