49
FY operation manual
position adjustment again.
2. Setting motor valve traveling time
Parameter
Symbol
Content
Default
Level
RUCY
Motor valve traveling time
Time unit
:
second
5
Fast
With feedback resistance mode
Executing automatic valve position adjustment will get RUCY setting value automatically
Without feedback resistance mode
Check the motor valve specification and setting the RUCY value of a manually
3. Setting valve action interval time
Parameter
Symbol
Content
Default
Level
CYT1
Motor valve action interval time.
Time unit : second
5
Fast
EX1 : Setting CYT1=5, after executing current valve action,
If the controller calculates that the valve needs to be closed
for 2 seconds, controller will delay 5 seconds before performing close valve action
EX2 : Setting CYT1=7, after executing current valve action,
If the controller calculates that the valve needs to be open
for 2 seconds, controller will delay 7 seconds before performing open valve action
4. Setting motor valve action main adjustment
Parameter
Symbol
Content
Default
Level
HYSM
motor valve action main adjustment
unit : percentage
1.0
Fast
When error% accumulates to the set value of HYSM the controller will drive motor valve to eliminate this error%
EX1 : set HYSM =0.5,
when error% accumulates to 0.5 the controller will drive motor valve to eliminate this error%
EX2 : set HYSM =1.0, when error% accumulates to 1.0 the controller will drive motor valve to eliminate this error%
The smaller the set value of this parameter, the more frequent the valve action, the more precise the control, but it
will also affect the valve life, proper HYSM setting reduces valve operating frequency to protect valve life
5. Setting motor valve action sub adjustment
Parameter
Symbol
Content
Default
Level
HYS1
motor valve action sub adjustment
unit : percentage
0.5
Fast
When the error% accumulates to the set value of HYSM, the controller will drive the valve to eliminate the set
value of HYS1
EX1 : set HYSM =0.5, HYS1 =0.3, when error% accumulates to 0.5% the controller will drive motor valve to eliminate 0.3%
EX2 : set HYSM =1.0
,
HYS1 =0.5, when error% accumulates to 1.0% the controller will drive motor valve to eliminate 0.5%
6. Setting motor valve high/low limit in resistance feedback control mode
Parameter
Symbol
Content
Default
Level
MOLL
low limit of valve position
0.0
Fast
MOLH
high limit of valve position
100.0
Fast
EX1 : if you want set 20% low limit of valve position, setting MOLL=20.0
EX2 : if you want set 80% high limit of valve position, setting MOLH=80.0
Notes
1. The lowest valve position and the highest valve position are automatically written into ANL2 & ANH2 after executing
automatic valve position adjustment
2. When performing automatic valve position adjustment(PMAC=ON), please make sure that the fuel is closed
3. When the controller detects that the feedback resistance is disconnected, it will automatically switch to no feedback control
mode
and PV area show “PMER” message
4. It is recommended to install spark killer at the relay junction to prolong the service life of the relay.
Spark killer connection
R
CLOSE
OPEN
Motor valve
S
COM
CLOSE
OPEN
COM
NFY600/800/900 Controller
7
8
10
6
9
spark killer
Summary of Contents for FY400
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