HQ Series Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumG-HQ-21 Rev2
Page 16 / 26
Valve Automation Leader, HKC
Wait until only the Green LED flickers after both Red and Green LED flicker for about 1.5
second.
Turn down No. 4 switch of the dip switch.
※
If No. 4 switch of the dip switch is turned down during the setting process, the setting will be
cancelled.
※
If there is no input for 2 minutes, the setting process will also be cancelled.
4.9.13.
Manual operation mode
①
This function allows the user to manually operate the actuator.
②
To access this function, press ZERO (Black) and SPAN (White) buttons simultaneously for 1 second.
Then, yellow LED will be ON to indicate that the actuator is in Manual Operation mode.
③
Pressing the ZERO button will move the actuator to close position and pressing the SPAN button
will move the actuator to open position.
④
If user do not operates within 10 seconds or press ZERO and SPAN buttons again simultaneously
for 1 second, PCU board will automatically terminate the Manual Operation mode.
4.9.14.
LED display
①
Operating display
Status
LED Color
Display
Function
Open
Red
On
Fully opened
Flicker
Moving to open position
Auto
Blue
On
Power on
Flicker
Auto setting
Close
Green
On
Fully closed
Flicker
Moving to close position
Fault
Yellow
On
Manual mode
Flicker
Malfunction
②
Error display on the
PCU-EB-V1.5D board for AC
PCU-EB-V1.5D board for AC
indicates an error condition when the yellow LED is flickering.
At this time, when user presses the ZERO (Black button), user can get the error type from LED status
as below.
No
Error type
(Malfunction)
LED display
Red
Blue
Green
Yellow
1
EEPROM error
Off
Off
Off
On
2
Input signal initialization error
Off
Off
On
Off
3
Auto setting initialization error
Off
Off
On
On
4
Input signal error
Off
On
Off
Off
5
Reverse turn the motor
Off
On
Off
On
6
Command signal selector switch error
Off
On
On
Off
7
Abnormal of potentiometer
Off
On
On
On
8
Open position error
On
Off
Off
Off
9
Close position error
On
Off
Off
On
10
Limit switch error
On
Off
On
Off
③
Error display on the
PCU-DC-V2.1C board for DC
PCU-DC-V2.1C board for DC
also indicates an error condition when the yellow LED is flickering. At
this time, when user push the ZERO (Black button), user can get the error type from LED status as
below.
