HKC HQ-006 Instruction manual

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Valve Automation Leader, HKC
HQ–006 Quarter-turn Electric Actuator
Installation, Operation & Maintenance Manual
Ordinary Location Usage Hazardous Location Usage
(General Type) (Flame Proof Type)
Address : 26, Emtibeui 28-ro, Siheung-si, Gyeonggi-do, (15119) Republic of Korea
Tel : [phone], Fax : [phone], Home page : www.hkcon.co.kr, email : [e-mail]

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 2 / 22 Valve Automation Leader, HKC
Contents
1. Introduction ................................................................................................................. 3
1.1. Purpose ............................................................................................................................................... 3
1.2. Safety Notices .................................................................................................................................... 3
2. Product Identification ................................................................................................. 3
2.1. Product Identification ...................................................................................................................... 3
2.2. Initial Inspection ............................................................................................................................... 3
2.3. Storage ................................................................................................................................................ 4
3. General Information and Features ............................................................................ 4
3.1. General Information ......................................................................................................................... 4
3.2. External Parts for Standard Models .............................................................................................. 5
3.3. Internal Parts for Standard Models............................................................................................... 5
4. Installation ................................................................................................................... 6
4.1. Pre-installation .................................................................................................................................. 6
4.2. Actuator Mounting ........................................................................................................................... 6
4.3. Limit Switch Setting ......................................................................................................................... 7
4.4. Setting Potentiometer (Replacement and Setting) .................................................................... 8
4.5. Current Position Transmitter – CPT (Optional) ........................................................................... 8
4.6. Proportional Control Unit ............................................................................................................. 10
4.7. AC/DC Multi-Board ......................................................................................................................... 16
5. Operation ................................................................................................................... 16
5.1. Electrical Connections and Preliminary Test.............................................................................. 16
5.2. Wiring Diagrams for Standard Models ...................................................................................... 18
5.2.1. HQ-006 On/Off type ......................................................................................................... 18
5.2.2. HQ-006 PCU type .............................................................................................................. 18
6. Maintenance .............................................................................................................. 19
6.1. Maintenance .................................................................................................................................... 19
6.2. Tools .................................................................................................................................................. 19
7. Trouble Shooting ....................................................................................................... 19
7.1. The actuator does not respond ................................................................................................... 20
7.2. The actuator is supplied with power but does not operate .................................................. 20
7.3. Actuator runs erratically ................................................................................................................ 20
7.4. Optional Equipment(s) ................................................................................................................... 20
8. Dimensions ................................................................................................................ 21

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 3 / 22 Valve Automation Leader, HKC
1. Introduction
1.1. Purpose
The purpose of this manual is to introduce and explain the installation, operation and maintenance of
HQ-006 electric actuators.
1.2. Safety Notices
Safety notices are in this manual as outline precautions. The user must take to reduce the risk of personal
injury and damage to the equipment. The user(s) must read these instructions before the installation,
operation or maintenance of HQ-006 electric actuators.
DANGER: Refers to personal safety and alerts the user to danger or harm.
The hazard or unsafe practice will result in severe injury or death.
WARNING: Refers to personal safety. Alerts the user to potential danger.
Failure to follow warning notices could result in personal injury or death.
CAUTION: Directs the user’s attention to general precautions that, if not followed, could
result in personal injury and/or equipment damage .
Notes: Highlighted information is critical to the user’s understanding of the actuator’s
installation and operation.
2. Product Identification
2.1. Product Identification
The actuator name plate is located on the opposite side of the conduit entry. The name plate contains
the following:
2.1.1. Marking
① General (Sticker) ② Ex d (for IECEx/ATEX: Stainless Steel)
③ Ex d (for KCs: Stainless Steel)
Note:
Name of manufacturer and country shall not be printed based on OEM.
2.1.2. [Applied standard
① IEC60079-0:2011, EN60079-0:2012
② IEC60079-1:2014-06, EN60079-1:2014
③ 고용노동부고시 제2013-54호, 방호장치 의무안전인증 고시
2.1.3. Certification
① IECEx: EPS 15.0075X, Ex db IIB T4 Gb
② ATEX: EPS 15 ATEX 1 127 X, II 2G Ex db IIB T4 Gb
③ KCs, : 16-AV2BO-0354 Ex d IIB T4
④ [CCC : 2021 3123 0700 0204 Ex d IIB T4 Gb ----- 21 r1]
2.2. Initial Inspection
Upon on the receipt of the actuator, the user should inspect the condition of the product and ensure that
product specification stated in the name plate matches with the order sheet.
 Remove the packing wrap or wooden box carefully. Inspect the product for any physical damage that

HQ logo(trade mark)
Model
Electrical power supply
Torque
Operating time (seconds)
Type : IECEx/ATEX/KCs/CCC Ex db IIB T4
Rated current
Option

Serial No.

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 4 / 22 Valve Automation Leader, HKC
may have occurred during shipment.
 Check the product specification with product ordered. If a wrong product has been shipped,
immediately report to our coordinator.
2.3. Storage
Actuators must be stored in a clean, cool and dray area. The unit should be stored with the cover installed and
the conduit openings sealed. Storage must be off the floor, covered with a sealed dust protector. When
actuators are to be stored outdoor, they must be stored off the ground, high enough to prevent from being
immersed in water or buried in snow.
3. General Information and Features
3.1. General Information
HKC HQ-006 electric actuators are designed to provide reliable and efficient operation of 90 degree quarter
turn valves, such as damper valves, etc.
3.1.1. Performance
Type
Max.
output
Torque
Operating
time(sec.)
60/50 Hz
Duty Cycle
IEC34-1
Mounting Size
Power
1 Phase
Rated Current (A) 60/50 Hz
1 Phase Weight
Kgf.m 90° S4 (%) ISO 5210 AC or DC 110V 220V 24V kg
HQ-006 6 12/14 50 F03, F05, F07 110V, 220V ac, 24V dc 0.4 / 0.4 0.2 / 0.2 1.7 3
3.1.2. Standard Technical Data
Enclosure Rated
Weatherproof IP67
Enclosure
High grade aluminum alloy,
Anti
-
corrosion coated
Power Supply
110 / 2
20
V
ac
1
p
h 60/5
0
Hz
,
24 V
dc
Duty Type
S4
4
0
% / S2 30min (IEC 60034)
Motor
AC reversible motor
Limit Switches
2 x open/close SPDT, 250
V
ac
10
A rating
Auxiliary Limit Switches
2 x open/close SPDT, 250
V
ac
10
A rating
Torque Switches
N/A
Indicator
Continuous position indicator
Manual Override
Manual
handle
Space Heater
2
W
Conduit Entries
Standard:
2
x P
G13.5
, Option:2 x NPT1/2
”
, PT1/2
”
, PF1/2
”
Flame proof: 2 x NPT3/4”, M20, M25
Lubrication
Grease moly EP
Ambient Temperature
-
20
℃
~ +
6
0
℃
External Coating
Dry powder
polyester
3.1.3. Optional Technical Data (Optional)
EXD
Flame proof enclosure (Ex d IIB T4)
WTA
Wat
ertight Enclosure (IP68 10m / 24
hr)
PIU
Potentiometer U
nit (0~1KΩ)
PCU
Proportional Control U
nit (
input, output
0~10
V
DC,
4~20mA DC)
CPT
Current Position T
ransmitter
(output 4~20mA DC)
3.1.4. Duty Cycle 1)
Duty cycle rated IEC60034 – S4 40% / S2 30 min
Exceeding the actuator’s rated duty cycle may cause thermal overload.
Note:
1) Type of duty according to VDE 0530 / IEC 60034-1
Short – time duty S2 Intermittent duty S4
The operation time at a constant load is
short, so that thermal equilibrium is not
reached. The pause is long enough for the
machine to cool down to ambient
temperature. Example, the duration of the
short –time operation is limited to 15min.
The duty is a sequence of identical cycles
which consist of starting time, operation time
with constant load and rest period. The rest
period allows the machine to cool down so
that thermal equilibrium is not reached.
Example, the relative on-time at S4-25% or S4-
50% is limited to 25% and 50% respectively.

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 5 / 22 Valve Automation Leader, HKC
3.1.5. Heater
Condensation in the actuator is possible due to wide fluctuation of the ambient temperature. The heater
integrated in the control unit prevents this in general.
3.1.6. Manual Override
HQ-006 actuators are provided with a manual system. The standard HQ-006 actuators come with a manual
override nob. This nob is located on the bottom of the unit and can be easily operated with a 5M wrench.
Turn the hand wheel until the valve reaches the required position (turn clockwise to fully open and counter-
clockwise to fully close).
3.1.7. Lubrication
HQ-006 electric actuator is a totally enclosed unit with permanent lubricated gear train (Moly EP Grease).
Once installed, further lubrication should not be required. However, periodic preventative maintenance will
extend the operating life of the actuator.
3.2. External Parts for Standard Models
3.3. Internal Parts for Standard Models
External Parts
1 Top Cover
2
Body
3
Cable Entry (PG 13.5) x 2
4 Drive Shaft (star 14mm)
5
Mounting
Base (F03, F05, F07)
6 Hand Wheel
7
Name Plate
8
Cover Bolt
9
Indicator
Internal Parts
1 Motor
2 Indicator
3 Open Limit Switch
4 Close Limit Switch
5 Additional Open Limit Switch
6 Additional Close Limit Switch
7 Potentiometer Unit
8 Terminal
9 Heater
10 Capacitor
Close
Open
Close
Open

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 6 / 22 Valve Automation Leader, HKC
4. Installation
4.1. Pre-installation
Verify the actuator’s nameplate to ensure correct model number, torque output, operating speed, voltage and
enclosure type before installation or use.
It is important to verify that the torque output of the actuator is appropriate for the torque requirements of the
valve and that the duty cycle of the actuator is appropriate for the intended application.
Model
HQ
–
006
3)
Type of
protection
IECEx: Ex d
b
IIB T4
,
ATEX
:
II 2G Ex d
b
IIB T4 Gb
, KCs
& CCC
: Ex d IIB T4
Ambient Temperature
-
20 ℃ ~ +60 ℃
If remained openings on the enclosure after installation for use in potentially explosive
atmosphere, the hole shall be blanked with a Ex d IIB or Ex d IIC certified blanking element.
Danger: Installation, commissioning, maintenance, repairs and modification work must
only be performed by qualified personnel with extensive knowledge on how to work on
explosion-proof electrical equipment.
Warning:
Read this installation, operation and maintenance manual carefully and completely before
attempting to install, operate, or troubleshoot the HKC actuator.
Notes:
3) Further information can be found from the HQ-series electric actuator catalogue
Refer to the CI.3 in this manual
4.2. Actuator Mounting
Note:
Prior to mounting, the part-turn actuator must be checked for any damage
Damaged parts must be replaced by original spare parts
Mounting is most easily done with the valve shaft pointing vertically upward. But mounting is also possible
in any other position; the actuator may be mounted in any position.
The HQ-006 series actuators are supplied with Union joints & nuts; the Union joints are removable for the
ease of machining.
CAUTION:
Do not attempt to work on your HKC actuator without first shutting off the incoming
power.
4.2.1. Actuator Mounting Base Details
Note:
Make sure both the actuator and valve are fully closed.
Direct Mounting (ISO Standard)
Actuator:
Fully Closed
Valve:
Fully Closed
Bracket Mounting

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 7 / 22 Valve Automation Leader, HKC
DANGER: HAZARDOUS VOLTAGE! Make sure all incoming power is disconnected before
performing the mounting.
4.3. Limit Switch Setting
4.3.1. Manually rotate the hand wheel of the actuator to fully closed position
4.3.2. Using a hex wrench, loosen the set screw in the CLOSE limit switch cam
4.3.3. Rotate the CLOSE cam towards CW limit switch lever until the switch ‘clicks’ (see Figure 1 below)
4.3.4. Tighten the set screw with the hex wrench
4.3.5. Manually rotate the hand wheel of the actuator to opened position
4.3.6. Using the hex wrench, loosen the set screw in the OPEN limit switch cam
4.3.7. Rotate the OPEN cam towards CCW limit switch lever until the switch ‘clicks’ (see Figure 2 below)
4.3.8. Tighten the set screw with the hex wrench
DANGER: HAZARDOUS VOLTAGE! Make sure all incoming power is disconnected before
performing the mounting.
Actuator Mounting Base: F03/F05 and F07
Star Adapter 14mm→11mm
11mm→9mm
Square Adapter 14mm→11mm
11mm→9mm
Figure 1: Close C
a
m Setting
Close Limit Switch
Close Limit Switch Cam (Clockwise)
2mm Hexagon Socket Screw Key
F03, F05, F07
Figure 2: Open C
a
m Setting
Open Limit Switch
Open Limit Switch Cam
(Counterclockwise)
Auxiliary Open Limit Switch
Auxiliary Close Limit Switch

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 8 / 22 Valve Automation Leader, HKC
Anti-vibration type General use
4.4. Setting Potentiometer (Replacement and Setting)
The potentiometer has been calibrated at factory. However, if re-calibration is required, proceed as follows:
4.4.1. Manually rotate the hand wheel of the actuator to fully closed position.
4.4.2. While measuring the resistance between P1 (orange) and P2 (grey), gently rotate the Potentiometer
Gear until it reaches between 80 - 120 Ω (100 Ω preferred).
4.4.3. Engage the Potentiometer Gear into the Point Shaft Gear and use an L-wrench to tighten the screw.
4.5. Current Position Transmitter – CPT (Optional)
The potentiometer is used for the actuator signal feedback. It reads a resistance value corresponds to the
current position of the actuator and transfers to CPT card. The CPT indicates the current position of the
actuator throughout the stroke by a 4 – 20mA output signal.
4.5.1. Standard Features
Model
CPT
Power
220(110)V
ac
, 50/60Hz, 2VA Max
Output Signal
4~20mA
dc
Output Impedance
750Ω Max
Resolution
Min 1/1000
Position Conversion Accuracy
±
0.5 ~
±
1.5%
Ambient Temperature
-
20
℃
to +
6
0
℃
Ambient Humidity
90% RH Max (
at
Non
-
condensing
condition
)
Insulation Resistance
Above 500V
dc
30MΩ
Vibration
10g, 0~34Hz
4.5.2.
4.5.3. Calibration of Zero and Span - CPT
The settings of Zero and Span have been
calibrated at the factory. However, if re-
calibration is required, proceed as follows:
① Apply power (or use the manual
override) to drive the actuator to its
fully closed position (clockwise
rotation).
② When the actuator is in the fully
closed position, adjust the ZERO dial on
the CPT board until reading of 4mA is
achieved.
③ Apply power (or use the manual
override) to drive the actuator to its
fully open position (counter-clockwise
rotation).
④ When the actuator is in the fully open
position, adjust the SPAN dial on the
CPT board until a reading of 20mA is
achieved.
Potint shaft
Potentiometer gear
Point shaft
Potentiometer
JP-30B(1kΩ±0.5%)
Limit switch
[
P
3
P2
P
1
---
16Rev1]

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 9 / 22 Valve Automation Leader, HKC

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 10 / 22 Valve Automation Leader, HKC
4.6. Proportional Control Unit
[Never welding should be done while the power line is connected to the actuator. Electrical shock
can cause serious damage to the microprocessor of the actuator. ----- 17 Rev1]
4.6.1. [PCU EB-V1.5D for AC, Optional
Front Back
4.6.2. [PCU DC-V2.1C for DC, Optional
Front Back
4.6.3. Standard Specification
Table 1: Standard specification of the Proportional Control Unit
Model PCU EB-V1.5D (for AC) PCU DC-V2.1C (for DC)
Indicated on the board PCU_EB_V1.5D-CONTROL HKC-PCU_DC-MAIN-V2.1C
Special function Applied Electronic Breaking system
(EB) for high resolution control. NA
Power
110V/220V ac ±10%, 50/60Hz, 4VA max
24V dc ±10%, 7A max
Input signal (set point) 4~20mA dc, 0~20mA dc, 1~5V dc , 0~5V dc , 2~10V dc, 0~10V dc
Input impedance 100 kΩ and over
Output signal (feedback)
4~20mA dc, 0~20mA dc, 1~5V dc , 0~5V dc , 2~10V dc, 0~10V dc
Output impedance 100 Ω and less
Position resistance 100~10 kΩ
Dead time
0.2~7.5 sec (It can be set in 16 step)
•
Step 0 : 0.2 sec
•
Step 1~4 : 0.25~1sec (0.25sec/step)
•
Step 5~15 : 2.5~7.5sec (0.5sec/step)

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 11 / 22 Valve Automation Leader, HKC
Model PCU EB-V1.5D (for AC) PCU DC-V2.1C (for DC)
Dead band
0.3~7.5 % (It can be set in 16 step)
•
Step 0 ~ 4 : 0.3~0.7 % (0.1 %/step)
•
Step 5 ~ 9 : 1 ~ 1.8 % (0.2 %/step)
•
Step10 ~15 : 5 ~ 7.5 % (0.5 %/step)
0.4~7.5 % (It can be set in 16 s
tep)
•
Step 0~4 : 0.4~0.8 % (0.1 %/step)
•
Step 5~9 : 1 ~ 1.8 % (0.2 %/step)
•
Step10~15 : 5 ~ 7.5 % (0.5 %/step)
Fault mode Fail close, Fail open, Fail stop
Position conversion accuracy
±(0.2 to 5)% (may vary depending on conditions)
Ambient temperature -25℃ to 80℃
Ambient humidity 90% RH max. (non-condensing condition)
Dielectric strength 1500V ac, 1 minute 500V ac, 1 minute
Insulation resistance 500V dc, 50MΩ or more
Vibration and shock
X, Y, Z axis 10g (@ 6g RMF), frequency: 0.2-34 Hz, time: within 30 minutes
4.6.4. Main function and usage for PCU
① Select input signal switch
Dip Switch PCU model Power source
SW7 PCU-EB-V1.5D for AC
SW2 PCU-DC-V2.1C for DC
Depending on the system environment, the user can select the required command signal type by
setting the DIP switch SW7 or SW2 as above table.
Notes : DIP switch is commonly set with 4~20mA dc before shipping.
Please make sure whether the input signal and DIP switches are correct as intended use.
Caution : Zero switch (No. 3) is applied to input and output signals equally.
② Select output feedback signal switch
Dip Switch PCU model Power source
SW8 PCU-EB-V1.5D for AC
SW3 PCU-DC-V2.1C for DC
Depending on the system environment, the user can select the required output feedback signal by
setting the DIP switch as above table.
Notes : DIP switch is commonly set with 4~20mA dc before shipping.
Caution : Please refer to Zero switch (No. 3) of the clause “4.6.4. ① Select input signal switch“.
4.6.5. Deadband setting
① Deadband means maximum allowable tolerance of the actuator stop position according to
command signal.
② It is also minimum variation value of command signal to operate the actuator.

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 12 / 22 Valve Automation Leader, HKC
③ Adjustable setting range : (16 steps available)
 Step 0~4 : increase 0.1% increment per step
(0.3 ~ 0.7 % for PCU-EB-V1.5D ac)
(0.4 ~ 0.8 % for PCU-DC-V2.1C dc)
 Step 5~9 : increase 0.2% increment per step (1.0% ~ 1.8%)
 Step A~F : increase 0.5% increment per step (5.0% ~ 7.5%)
 Initial setting is “4”
④ If the setting value is too low, the actuator may not be found the target point and it may be
repeatedly operated in forward or reverse direction. This is called “Hunting” and the user must
appropriately adjust the deadband to avoid from the hunting.
⑤ Continuous hunting causes a failure of the actuator parts such as motor, PCU board, potentiometer
and etc.
4.6.6. Deadtime setting
① This is necessary to apply the command signal.
② It is the minimum time for maintaining the state of the input signal satisfying the deadband.
③ Actuator only accepts input signal satisfying the setting value of the deadtime as normal and
operates. It is for preventing from abnormal operation of the actuator by external disturbance such
as noise.
④ Adjustable setting range : 0.2~7.5 sec (16 steps available)
 Step 0 : 0.2 sec (minimum value)
 Step 1~4 : increase 0.25 sec increment per step (0.25~1 sec)
 Step 5~F : increase 0.50 sec increment per step (2.5~7.5 sec)
 Initial setting is “4”
4.6.7. Auto setting
① Check connection status of the input power and input/output signal after actuator and valve are
correctly assembled.
② If there is no problem with the wiring, push the auto setting button once (ASCAN).
③ Then the LED lights on the PCU board will be flickering and perform the auto setting function.
④ Auto setting details
② Blue LED will be continuously flickering.
③ Green LED will be flickering while closing and it will be ‘ON’ after fully closed.
If the actuator is already in closed position, the closing operation will be skipped.
④ Red LED will be flickering while opening and it will be ‘ON’ after fully opened.
⑤ Green LED will be flickering while closing and it will be ‘ON’ after fully closed.

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 13 / 22 Valve Automation Leader, HKC
⑥ When all of the sequences are automatically and successfully completed, Blue LED will be ‘ON’ and
then actuator will move to pre-set position
Notes: If you press any button of ZERO/SPAN/ASCAN during the auto setting processes, the auto
setting mode will be cancelled.
4.6.8. Fail close (FC), fail open (FO) and fail stop
Dip Switch PCU model Power source
SW3 PCU-EB-V1.5D for AC
SW1 PCU-DC-V2.1C for DC
When an analogue command signal does not come in or a wrong signal is received, the PCU
board will detect the Fault and operates actuator automatically in open, close and stop position
according to pre-set fail position.
4.6.9. Auto full action (AF)
Dip Switch PCU model Power source
SW3 PCU-EB-V1.5D for AC
SW1 PCU-DC-V2.1C for DC
① Turn on the AF (Auto Full) DIP switch No3
② Response of the actuator
 Move to fully closed position on input signal of 4.3 mA or
lower.
 Move to fully opened position on input signal of 19.7 mA
or higher.
4.6.10. Reverse mode (RV)
Dip Switch PCU model Power source
SW3 PCU-EB-V1.5D for AC
SW1 PCU-DC-V2.1C for DC
① It is used when user want to operate actuator by inverting input
signal and output signal.
② When the command signal is 4 mA, the actuator moves to fully
opened position, and makes 4 mA dc as an output signal.
③ When the command signal is 20 mA, the actuator moves to fully
closed position, and makes 20 mA dc as an output signal.
4.6.11. Random command signal setting
Dip Switch PCU model Power source
SW3 PCU-EB-V1.5D for AC
SW1 PCU-DC-V2.1C for DC
① This function is intended to change the Zero (fully close) and Span (Fully open) signal.
② Adjustable setting range of the Zero signal : about 3~8mA dc
③ Adjustable setting range of the Span signal : about 16~21mA dc
※ Example: Set 5 mA dc as Zero and 19 mA dc as Span signal

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 14 / 22 Valve Automation Leader, HKC
 Turn up No. 4 switch (I/S input set) of the dip switch.
 Both Red and Green LED will be flickering quickly.
 About 1.5 seconds later, only the Green LED will be flickering.
 Input 5mA to command signal on the input terminal and then press the ZERO (black) button
to unlock.
 If the setting is successfully done, Yellow LED will flicker once and Green LED will be ON
(setting completed). Then, Red LED will be flickering for input setting.
 Input 19mA to command signal on the input terminal and then press the SPAN (white) button
to unlock.
 If the setting is successfully done, Yellow LED will flicker once and Red LED will be ON (setting
completed).
 Wait until only the Green LED flickers after both Red and Green LED flicker for about 1.5
second.
 Turn down No. 4 of the dip switch (I/S input set) to finish the setting.
※ If No. 4 switch of the dip switch is turned down during setting, the setting will be cancelled.
※ If there is no input for 2 minutes, the setting process will also be cancelled.
4.6.12. Adjust output (feedback) signal
Dip Switch PCU model Power source
SW7 PCU-EB-V1.5D for AC
SW2 PCU-DC-V2.1C for DC
① Adjust Zero (4mA) and Span (20mA) value of the output signal.
② Each time the zero button (Black) is pressed, the output signal will be decreased.
③ Each time the span button (White) is pressed, the output signal will be increased.
※ Example: Set 4 mA dc as Zero and 20 mA dc as Span signal.
 Turn up No. 4 switch of the dip switch.
 Wait until only the Green LED flickers after both Red and Green LED flicker for about 1.5
second.
 Adjust output signal value to 4 mA by pushing the Zero or Span button.
 After checking the 4 mA output signal, press ASCAN button (Red).
 Yellow LED will be ON and OFF.
 Confirm the Green LED is ON and Red LED is flickering.
 Adjust the output signal value to 20 mA by pushing the Zero or Span button.
 After checking the 20 mA output signal, press ASCAN button (Red).
 Yellow LED will be ON and OFF.
 Confirm the Red LED is ON.
 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.
4.6.13. Manual operation mode
① This function allows the user to manually operate the actuator.

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 15 / 22 Valve Automation Leader, HKC
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.
4.6.14. 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.
No Error type
(Malfunction)
LED display
Red Blue Green Yellow
1 Input signal initialization error Off Off Off On
2 Reverse turn the motor Off Off On Off
3 Auto setting initialization error Off Off On On
4 EEPROM error Off On Off Off
5 Input signal error Off On Off On
6 Open position error Off On On Off
7 Close position error Off On On On
8 Command signal selector switch error On Off Off Off
9 Limit switch error On Off Off On
10 Torque switch trip On Off On Off
----------- 21 Rev1]

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 16 / 22 Valve Automation Leader, HKC
4.7. AC/DC Multi-Board
4.7.1. Terminal block
2 Close Lamp
3 None
4 Open Lamp
5 None
6 Lamp Com
7 Power 24V ac/dc (dc + input terminal)
8 Close signal
9 Open signal
10 None
11 None
12 Power 24V ac/dc (dc – input terminal)
4.7.2. Power in-put switch
NOTE: Don’t turn on both switch #1 and #2 at the same time that become a reason of
damage of the board
5. Operation
5.1. Electrical Connections and Preliminary Test
WARNING:
 When working in potentially explosive atmospheres, observe the European Standards EN 60079-14
“Electrical Installation in Hazardous Areas” and EN 60079-17 “Inspection and Maintenance of
Electrical Installations in Hazardous Areas”. Work on the electrical system or equipment must only be
carried out by a skilled electrician himself or by specially instructed personnel under the control and
supervision of such an electrician and in accordance with the applicable electrical engineering rules.
 For cable entries that are not used, user or installer shall close by Ex d IIB or Ex d IIC certified
blanking element, Ex d type of protection of the enclosure is maintained during operation.
 Flameproof enclosure! Treat cover with care. Gap surfaces must not be damaged in any way. Do not
jam cover during fitting.
5.1.1. For testing purposes, loosen the bolts on the actuator cover and remove the cover.
5.1.2. Make sure that the power supply voltage is in accordance with the data on the nameplate of the
actuator.
5.1.3. Connect wires according to the enclosed wiring diagram (see 5.2)
5.1.4. Manually move the valve to half-open position. Then electrically operate the actuator to fully open
position and check if the motor rotates in correct direction; standards units are counter-clockwise to
open.
5.1.5. Test the actuator and check whether the limit switches work correctly
5.1.6. After the testing, check that all cable glands are correctly tightened. Applicable cable glands should
be selected to meet the application’s condition. It is recommended to use the grade of IP67 cable
gland or higher in potentially explosive sites.
5.1.7. Put the back the cover and tighten the bolts.
DANGER: HAZARDOUS VOLTAGE. No electrical power should be connected until all
wiring and limit switch adjustments have been completed. Once the power is supplied
to the unit, exercise caution when the cover is not installed.

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 17 / 22 Valve Automation Leader, HKC

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 18 / 22 Valve Automation Leader, HKC
5.2. Wiring Diagrams for Standard Models
5.2.1. HQ-006 On/Off type
5.2.2. HQ-006 PCU type

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 19 / 22 Valve Automation Leader, HKC
6. Maintenance
6.1. Maintenance
CAUTION:
 Turn off all power before attempting to perform maintenance on the actuator.
 POTENTIALLY HIGH PRESSURE VESSEL. Before removing or disassembling your actuator, ensure that
the valve or other actuated device is isolated and not under pressure.
Under the normal conditions, maintenance should be carried out at six month intervals. But when the
conditions are more severe, more frequent inspections may be advisable.
6.1.1. Ensure that the actuator is properly aligned with the valve or other actuated device
6.1.2. Ensure that all wirings are insulated, connected and terminated properly
6.1.3. Ensure that all screws are present and tight
6.1.4. Ensure cleanness of internal electrical devices
6.1.5. Ensure that conduit connections are properly installed and are dry
6.1.6. Check the internal devices for any condensation
6.1.7. Check the power to the internal heater
6.1.8. Check the enclosure of O-ring seals and verify that the O-rings are not pinched between flange
6.1.9. Verify the declutch mechanism
6.1.10. Visually inspect the open/close cycle
6.1.11. Inspect the identification labels for wear and replace it if necessary
WARNING: Treat cover with care. Gap surfaces must not be damaged or dirtied in any way.
Do not jam the cover during fitting.
6.2. Tools
6.2.1. Metric Allen Key (Hex Wrench) × 1
6.2.2. Screw Driver × 1
6.2.3. Metric Spanner × 1
6.2.4. Wrench 200mm × 1
6.2.5. Wrench 300mm × 1
6.2.6. Wire Stripper Long Nose × 1
6.2.7. Multi-meter (AC, Dc, Resistance) × 1
6.2.8. PCU Board Option: DC Signal Generator (4 – 20mA DC) × 1
6.2.9. PCU & CTU Board Option: 1mA Ammeter (0 – 25mA)
7. Trouble Shooting
The following instructions are listed in the order of the most common difficulties encountered during the
installation and start-up.
Symptom Probable Cause Corrective Action
Motor will not run
Open in control circuit
Refer to appropriate wiring diagram and
check for continuity
Insulation resistance breakdown in
motor Perform megger Test
No power available to
actuator Tripped circuit breaker Reset circuit breaker
after remove the
cause of trip
Manual Override Nut hard to
turn
Valve stem improperly lubricated Lubricate with grease
Clean out old grease and replace with
recommended lubricant
Actuator lubrication has broken
down
Valve packing gland too tight Loosen packing gland nuts as necessary
Jammed valve Refer to valve maintenance
Valve only opens or closes
partially with motor Limit switch improperly set Check setting and reset if necessary

HQ-006 Quarter-turn Electric Actuator
Installation Operation& Maintenance Manual
Doc No. : HumA-HQ006-21 Rev1 Page 20 / 22 Valve Automation Leader, HKC
7.1. The actuator does not respond
7.1.1. Visually inspect the actuator to check no shipping or handling damage has occurred
7.1.2. Verify the line voltage supplied to the actuator; check that the line voltage matches with the rating
on the actuator’s nameplate
7.1.3. Check the internal wiring against the supplied wiring diagram of the actuator
7.1.4. Check the limit switch cams
7.2. The actuator is supplied with power but does not operate
7.2.1. Verify the line voltage supplied to the actuator; check that the line voltage matches with the rating
on the actuator’s nameplate.
7.2.2. Check that the actuator torque is greater than the valve torque
7.2.3. Check the limit switch cams
7.2.4. Check that the torque switches have not been tripped
7.2.5. Check the mechanical travel stop adjustment
7.2.6. Verify that the actuator against the rotation of the valve (standard units are counter-clockwise
rotation to open)
7.2.7. Check for any corrosion and condensation that any of the electrical or mechanical devices have not
been contaminated
7.2.8. Verify that coupler/bracket is correctly installed and is not causing any binding
7.3. Actuator runs erratically
7.3.1. Check the ambient temperature
7.3.2. Verify that the duty cycle has not been exceeded
7.3.3. Check the position of manual override lever
7.4. Optional Equipment(s)
7.4.1. Potentiometer Current Position Transmitter
 Check the resistance value
 Check potentiometer gear for jamming
 Check ZERO and SPAN calibration
 Check the board for any damage
7.4.2. Current Position Transmitter
 Verify the input signal
 Check the configuration of the dip switches
 Check the board for any damage
Manual Override Nut will not
operate valve
Stripped gearing Replace as necessary
Broken hand wheel shaft Replace as necessary
Broken valve stem Repair or replace as necessary
Motor runs but will not
operate valve Stripped gearing Replace as necessary