V. PARAMETER AND SETTING
Field parameter table (Press and hold for 2 seconds to access)
Code Name
Description
Setting
Range
HIA
High limit alarm
Alarm on when PV (Process Value) >HIA;
alarm off when PV<HIA-AHY
0
～
999
℃
LoA
Lower Limit
alarm
Alarm on when PV (Process Value) < LoA;
alarm off when PV > LoA+AHY
0
～
999
℃
HdA
Deviation high
alarm
Alarm on when PV-SV>HdA;
alarm off when PV-SV<HdA-AHY
0
～
999
℃
Loc Parameter
Lock
Loc=0~1: Allowed to modify parameters HIA, LoA, HdA and SV.
Loc=2~3: Allowed to modify parameters HIA, LoA, HdA. But cannot
change SV.
Loc=4~255: NOT allowed to modify any parameters and SV.
Loc=808, Set to 808 and press , allowed modify all parameters.
0
～
255
AHY
Hysteresis
Avoid frequent alarm on-off action because of the fluctuation of PV,
usually sets to AHY=2
0~200
AOP
Alarm output
assignment
Alarm
Output to
HdA
(x100)
LoA
(x10)
HIA
(x1)
None
0 0 0
AU1
1 1 1
AU2
2 2 2
eg: AOP=201 means HdA have alarm action from AU2, LoA, no alarm
action , HIA alarm action output from AU1.
0~444
CrL Control
mode
z
onF : On-off control, When PV=SV, Output stop. When
PV<SV-CHY, start output.
z
AI : AI PID control, high precision and no-overshoot,
P
Proportion band
Proportion band in PID with unit
℃
1~999
I
Time of Integral
Time of Integral in PID. No integral effect when I=0
0~999 Sec
d
Time of
Derivative
Time of Derivative in PID. No derivative effect when d=0
0~999 Sec
Ctl Control
period
Small value can improve control accuracy.
For SSR output, generally 0.5 to 3 seconds.
For Relay output, generally 15 to 40 seconds, because small value will
cause the frequent On-Off of mechanical switch and shorten its service
life. Ctl is recommended to be 1/4 – 1/10 of derivative time. When
control under on-off control, Ctl use as restart delay time after off, for
protect compressor application.
0.5-300 SEC
CHY
Control
Hysteresis
CHY is used for ON-OFF Control.
PV > SV, Output turns OFF;
PV<SV-CHY, Output turns ON.
0~200
InP
Input
specification
Sn
Input spec.
Sn
Input spec.
0 K
1-3
Spare
4 E
5 J
6 Spare
7 N
8-20 Spare
21 Pt100
0
～
21
Scb Input
Shift
Scb is used to make input shift to compensate the error produced by
sensor or input signal.
PV after compensation= PV before compen Scb.
-99
～
+99
℃
