Yudian(H.K.)AutomationTechnol o gyCo.Ltd.
Website:http://www.yudian.ushttp://www.yudian.com.hk
Email:sales@yudian.com.hk
Tel:+852‐27708785Fax:+852‐27708796
7
PARAMETER AND SETTING
● Field parameter table (Press and hold for 2 seconds to access)
Code Name Description
Setting
Range
HIAL
High limit alarm
Alarm on when PV (Process Value) >HIAL; Alarm off when PV<HIAL-AHYS
-9990～
30000
LoAL
Low limit alarm Alarm on when PV<LoAL; alarm off when PV>LoAL+AHYS
HdAL
Second high limit alarm Alarm on when PV>HdAL; alarm off when PV<HdAL-AHYS
LdAL
Second low limit alarm Alarm on when PV<LdAL; alarm off when PV>LdAL+AHYS
Loc
Parameter lock
0
～3: allowed to modify field parameters;
4～255: can only modify “Loc”; setting
Loc=808 and then pressing can access system parameter table.
0～9999
● System parameter table (set Loc=808 and then press to access)
AHYS
Alarm hysteresis
Avoid frequent alarm on-off action because of the fluctuation of PV. For
temperature alarm, it is recommended to be 0.5～2℃.
0～200
AOP
Alarm output
assignment
Example:
AOP = 3 3 0 1
LdAL HdAL LoAL HIAL
It shows that HdAL and LdAL are sent to AU1, LoAL has no output,
HIAL is sent to AL1.
Note : Installing L5 dual relay output module in ALM or AUX can
implement AL2 or AU2 alarm.
Alarm
Output to
LdAL
(x 1000)
HdAL
(x100)
LoAL
(x10)
HIAL
(x1)
None
0 0 0 0
AL1
1 1 1 1
AL2
2 2 2 2
AU1
3 3 3 3
AU2
4 4 4 4
0～4444
INP
Input specification
INP Input type INP Input type
0 K 20 CU 50
1 S 21 PT 100
2 R 26 0~80 omhs
3 SPARE 27 0~400 omhs
4 E 28 0~20mV
5 J 29 0~100mV
0~37
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