19
Sr.
No.
Parameter setting method
Description of parameters and functions.
Parameter
20
Sr.
No.
Parameter setting method
Description of parameters and functions.
Parameter
+1.0) A
(C-UL
50.0A
30.0A
Range
Min
Max
Fact. Set
Controller with 50A CT
After over the Temperature hold duration
display temperature will be increased by
O
0.1 C at every sec until it reaches current
Room Temperature.
increasing.
C-UL
Parameter
30
Function :
Under load limit for
compressor current.
To change the C-UL parameter,
press the set key.
Example :
If C-UL= 1.0A and compressor
current is less than 1.0A then and exists till
C2 current sensing delay then it is
registered as UL fault. Compressor will
get OFF on this fault. If after 3 retries
within 1 Hour current drawn is still less
than 1.0Amp the controller will trip the
compressor on fault and activate
respective alarm relay. Also display will
flash ‘C-UL’. Controller will go in manual
reset mode.
Use UP/DOWN keys to set desired value.
0.0A
(C-OL
-1.0)A
1.0A
Range
Min
Max
Fact. Set
C-OL
Parameter
31
Function :
Over load limit for compressor
current.
To change the C-OL parameter,
press the set key.
Use UP/DOWN keys to set desired value.
Example :
If C-OL= 15.0 A and
compressor current is greater than 15.0 A
then and exist till C2 current sensing delay
then C-OL fault exists and flash on
display. Compressor will be tripped on this
fault.
NOTE: 20/50A CT option available
while ordering controller.
(C-UL
+1.0) A
20.0A
15.0A
Range
Min
Max
Fact. Set
Controller with 20A CT
Use UP/DOWN keys to set desired value.
Example :
If C2 = 5 sec then, any current
fault will be valid only when it exists for
more than 5 sec.
To change the C2 parameter,
press the set key.
Parameter
C2
32
Function :
Current sensing time delay.
5 Sec
120 Sec
5 Sec
Range
Min
Max
Fact. Set
Use UP/DOWN keys to set desired value.
If this parameter is set to
ENB : HP sensing is enabled.
Example :
DIS : HP sensing is disabled.
To change the D0 parameter,
press the set key.
D0
Parameter
33
Function :
To enable or Disable HP
sensing.
DIS
ENB
ENB
Range
Min
Max
Fact. Set
Setting this parameter to disable will
ignore HP fault for compressor. If this
parameter is set to Enable then controller will
detect HP trip.
Use UP/DOWN keys to set desired value.
ENB : LP sensing is enabled.
Example:
If this parameter is set to
DIS : LP sensing is disabled.
To change D1parameter,
press the set key.
DIS
ENB
Parameter
D1
34
ENB
Function :
To enable or disable LP
sensing.
Range
Min
Max
Fact. Set
Setting this parameter to disable will
ignore LP fault for compressor. If this
parameter is set to Enable then controller will
detect LP trip.
