Super Systems 3 Series - 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