Sub-Zero CRC-2020, User Manual

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13 14
Sr.
No.
Parameter setting method
Description of parameters and functions.
Parameter
Sr.
No.
Parameter setting method
Description of parameters and functions.
Parameter
C-OL
Parameter
12
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= 10 A and compressor
current is greater than 10 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 : According to the compressor
current, set Overload value.
(C-UL
+1.0) A
30.0A 10.0A
Range
Min Max Fact. Set
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.
C2
Parameter
13
Function : Current sensing delay.
5 Sec 60 Sec
5 Sec
Range
Min Max Fact. Set
Use UP/DOWN keys to set desired value.
Example :
If this parameter is set to
ENB : HP sensing is enabled.
DIS : HP sensing is disabled
Setting this parameter to disable will
ignore HP fault for compressor. If this
parameter is set to Enable then controller
will detect HP trip.
To change the D0 parameter,
press the set key.
D0
Parameter
14
Function : To enable or Disable HP
sensing.
DIS ENB ENB
Range
Min Max Fact. Set
Use UP/DOWN keys to set desired
value.
Example:
If this parameter is set to
ENB : LP sensing is enabled.
DIS : LP sensing is disabled.
To change D1
parameter, press the set key.
DIS ENB
D1
Parameter
15
ENB
Function : To enable or disable LP
sensing.
Range
Min Max Fact. Set
D2
Parameter
16
To change D2 parameter,
press the set key.
0V 230V
Function : Fault sensing logic.
0V
Use UP/DOWN keys to set desired
value.
0V : 0V at HP/LP/AUX input will be
sensed as fault and trip the
compressor.
230V : 230V at HP/LP/AUX input will be
sensed as fault and trip the
compressor.
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.
To change D3 parameter,
press the set key.
0 Sec
17
Min Min
Use UP/DOWN keys to set desired value.
Example : If this parameter is set to 30
sec, then LP fault will be sensed only
when it present continuously for 30 Secs.
180 Sec 30 Sec
D3
Parameter Function : To set LP sensing delay.
Range
Max
Fact. Set
Range
Max Fact. Set
18.0A
CRC-2020 CRC-2020