EIM HQ Series PCU Installation and Operation Manual Manuals & Guides

Installation and Maintenance Manual

Release: February 2017

HQ Proportional Control Unit (PCU-A)

HQ-401-0217

Service Instructions

HQ-401-0217

Table of Contents

Section 1: Check Point Using Actuator ..................................... 1

Section 2: General Performance ............................................... 1

Section 3: Standard Specification ............................................ 2

Section 4: Function of PCU and How to Set and Use it ............... 3

4.1 Select input signal ........................................................................................ 3

4.2 Set DIP switch for fail position .......................................................................3

4.3 Delay time .................................................................................................... 4

4.4 Resolution .................................................................................................... 4

4.5 Manual operation ......................................................................................... 5

4.6 Special setting for full open and close ........................................................... 5

4.7 Auto setting ................................................................................................. 6

4.8 Split range (CH1) .......................................................................................... 6

4.9 Reversal acting switch (CH2) ........................................................................ 7

4.10 Selection of output signal ............................................................................. 8

Table of Contents

February 2017

Section 5: Special Tools ............................................................ 9

Section 6: Setting Potentiometer (Replacing and Setting) ........ 9

Section 7: Limit Switch Setting .............................................. 10

Section 8: Check Operation of PCU ......................................... 11

Section 9: Layout of PCU Card ................................................ 11

Section 10: Document Revision .............................................. 13

Table of Contents

I

Table of Contents

February 2017

Table of Contents (continued)

Appendix A: List of Tables ...................................................... 14

Appendix B: List of Figures ..................................................... 14

Appendix C: List of Drawings

C.1 Dwg. No. HQ-15000-A , 1 Ph Wiring Diagram PCU ...................................... 15

C.2 Dwg. No. HQ-1500-A , 1 Ph Wiring Diagram Std. ........................................ 16

Service Instructions

HQ-401-0217

*Thanks for purchasing our HQ series electric actuator.
Before installing or operating actuator, please read this manual to thoroughly know how to
install and operate this device.

The contents of this manual are subject to change without notice due to continuously ongoing
improvements.

II

Table of Contents

Service Instructions

HQ-401-0217

Section 2: Checking Points

February 2017

Section 1: Check point before using actuator

1. Check if specification (Model No., Main Power, Control Power, Options) of delivered
actuator meets your requirements or not.

2. Check the application such as valve, damper & etc.

3. Check if mounting of actuator on application is correct and tight enough.

4. Check if settings of actuator such as limit switch, stopper bolts, indicator is correct or
not.

5. Check if electric wiring is correct or not.

6. In case of 3-phase motor, check rotating direction.

— Check rotating direction of actuator

— Open actuator about 50% by manual, supply power to actuator for 2-3

seconds.

— Push close button and check if actuator closing direction is correct or not.

— If actuator is moving in the wrong direction, turn off power supply to the

actuator and reverse the open and close lines from the PCU card.

7. Generally, all PCU functions are set in the factory before delivery and there is no need
to set the functions again.

— Only in special cases where the customer wants to adjust the limit switches, is

PCU function setting required.

— Setting is simple and only requires the pushing of the AUTO SETTING button

after putting actuator in 50% open (or close) position.

— PCU automatically sets all the functions by itself.

8. Disassembly or modification without the factory's consent may affect the performance
of the actuator.

Section 2: General Performance

The PCU is the local actuator controller, using 12-bit A/D converter and an 8-bit Microproces­sor, which operates the open and close functions according to the input signal from main
controller.
After operating the actuator, the PCU detects the current position and transmits position
feedback signals to the main controller.

Checking Points

1

Section 3: Standard Specification

February 2017

Section 3: Standard Specification

1. Model: PCU REV A4

2. Power: 85V-260VAC +10% 50/60Hz 4VA Max (New Wide range of voltage)

3. Input signal: 4-20mA DC, 2-10V DC, 0-5V DC, 0-10V DC, 1-5V DC
Input resistance: 250 Ohms, Feedback signal: 100 - 10K Ohm

4. Output signal: 4-20mA DC, 2-10V DC, 0-5V DC, 0-10V DC, 1-5V DC

5. Load resistance: 500 Ohms Max.

6. Control output: TRIAC contact 250VAC 16A Max (Inductive load)

7. Number of output contact: 2 each (Open and close contact)

8. Delay time adjustment: 0.05-7.5 sec (0Step 50msec 0-15 Step)
1-4 Step (Step Number X200msec) 5-15 Step (Step Number X 500msec)

9. Dead Band adjustment: 0.12mA DC MAX

10. Resolution Adjustment: 0 Step: 0.068mA 0-15 Step (Step Number +0.068mA)

11. Position conversion accuracy: +0.5 - +1.5% (Depends on installation)

12. Ambient temperature: 25°C - +80°C

13. Ambient humidity: 90% RH Max (Non-condensate)

14. Dielectric strength: 1500V AC 1 Min (Input to output, Power to Ground)

15. Insulation resistance: Min. 500V DC 30Mohm

16. Vibration & Shock (X, Y, Z); 10g (6g based on RMF, Frequency: 0.2 - 34Hz, 30 Min)

17. LED Signal

Service Instructions

HQ-401-0217

Figure 1 PCB LED Panel

LED SIGNAL

Blue On Power On (AUTO)
Blue Flicker AUTO SETTING

Green Flicker Closing

Green On Full Close

Red Flicker Opening
Red On Full Open
Yellow On Manual Mode

Fault in either

Yellow Flicker

No input signal,
Wrong input wiring,
Wrong PIU setting

VIEW A

2

Standard Specification

Service Instructions

HQ-401-0217

Section 4: Function of a PCU

February 2017

Section 4: Function of a PCU and how to set

and use it

4.1 Selecting of the input signal

User can select suitable input signal by adjusting DIP switches as follows.

Figure 2 Input DIP switch

Select input signal

switch

1 2 3

4 - 20mA DC

2 - 10V DC

1 2 3

60 Hz

1 - 5V DC

50 Hz

4

1 2 3

1 2 3

0 - 10V DC

1 2 3

0 - 5V DC

4

Select input Hertz

NOTE:

If there is no instruction for the input signal, the default is 4-20mA.

4.2 Setting of fail position

In order to prevent issues when the signal fails, the user can set the fail
position of actuator by setting of DIP switches as follows.

Figure 3 Fail position DIP setting

Setting of fail position

Switch (1,2)

switch

F CLOSE
F OPEN
A FULL
CH1
CH2

VIEW B

FAIL CLOSE

1 2 3 4 5

FAIL OPEN

1 2 3 4 5

Function of a PCU

VIEW C

1 2 3 4 5

FAIL STOP

1 2 3 4 5

3

Section 4: Function of a PCU

February 2017

4.3 Delay Time

This prevents continuous operation of PCU card caused by abnormal signal input such as noise,
microphone and other foreign frequency. Once the signal is detected, PCU follows that signal
but if there is a preset time, PCU doesn't move within the time.

PCU can move when input signal lasts a certain time which is preset. Turning the switch
clockwise, increases delay
Range 0.05- 7.5 sec (0Step 50msec 0-15Step)
1-4 Step (Step Number X 200msec)
5-15Step (Step Number X 500msec)

Figure 4 Delay rotary switch

Service Instructions

HQ-401-0217

Delay

time

VIEW D

4.4 Resolution adjustment

This is set allowance between input signal and position of actuator and if turned clockwise, sets
it wider and vice versa.

Please observe caution when turning this counter-clockwise because if it is too narrow, it could
cause "HUNTING".

HUNTING is an issue where the actuator doesn't stop at a position and repeats the move of
open and close

Dead Band adjustment: 0 .12mA DC MAX

Resolution Adjustment: 0 Step: 0.068mA

0-15Step (Step Number+0.068mA)

Figure 5 Resolution adjustment switch

D/B TIME

OPEN

DEAD

BAND

TARGET

Resolution

Adjustment

CLOSE

VIEW D

NOTE:

HUNTING is one of the causes of motor burning and damage of potentiometer and PCU card.

4

Function of a PCU

Service Instructions

HQ-401-0217

4.5 Manual operation by PCU card

In order to operate actuator by card, press ZERO and SPAN buttons together for 2 seconds. The
yellow LED will turn on to confirm manual operation mode.

If ZERO button is pushed, actuator will move to close and if the SPAN button is pushed, the
actuator will move to open.

Left alone for 15 seconds without operation, PCU will come out from manual operation mode.

NOTE:

(During manual operation mode, input signal is ignored)

Figure 6 Manual operation button

zero
close

span
open

Section 4: Function of a PCU

February 2017

Manual

Operation

Button

VIEW E

4.6 Special signal setting for full open and full closed

Figure 7 Special setting switch

F CLOSE
F OPEN
A FULL
CH1
CH2

VIEW C

Special setting

switch

1 2 3 4 5

"3 " Up : Signal : 4.3mA Full Closed

Function of a PCU

Signal : 19.7mA Full Open

"3 " Down : Signal : 4mA Full Closed

Signal : 20mA Full Open

5

Section 4: Function of a PCU

February 2017

4.7 AUTO SETTING

If mounting between actuator and application is correct, and input signal, input power and
wiring are correct, push AUTO SETTING button just once regardless of the position of
actuator.

Then Blue LED flickers with indicating LED as following:

1) Opening with Red LED in 5 sec-> 2) Full Close with Green LED->

2) Full Open with Red LED.

NOTE:

Please make sure that Limit Cam touches (Open/Close) Limit Switch while Autosetting.

Figure 8 AUTO SETTING button

Service Instructions

HQ-401-0217

zero

close

span
open

AUTO

SETTING

AUTO SETTING

VIEW E

4.8 Split range (CH1)

The Split range is a useful function that allows the customer to set the actuator to full close and
full open position using a signal if the input signal is not precise.

If customer wants to set actuator to full close position at 5mA, supply 5mA DC and actuator
moves to the position.

Then put CH1 DIP switch on and push ZERO button once. Then actuator acknowledges that
position as full close position and transmits 4mA DC.

Open set is same but instead, push SPAN Button.

BUTTON

OPEN
AUTO
CLOSE
FAULT

LD1 LD2 LD3 LD4

Once setting is done, put CH1 DIP switch off.

Adjustable range is:

• Close: 3 - 8mA DC

• Open: 16 - 21 mA DC

NOTE:

By using this DIP switch, the customer may set various positions at certain signal.

6

Function of a PCU

Service Instructions

HQ-401-0217

Figure 9 CH1 DIP switch

zero

close

span
open

AUTO

SETTING

VIEW C

LD1 LD2 LD3 LD4

OPEN
AUTO
CLOSE
FAULT

CH1

Section 4: Function of a PCU

February 2017

F CLOSE
F OPEN
A FULL
CH1
CH2

1 2 3 4 5

4.9 Reversal acting switch (CH2)

Generally, clockwise-rotating direction of actuator is to close but if user wants reverse
action, please do the following:

Switch "5 " Up : Signal : 20mA Full Closed

Signal : 4mA Full Open

Switch "5 " Down : Signal : 4mA Full Closed

Signal : 20mA Full Open

Put the actuator to 50% open (or close) position, and push the AUTO SETTING button.
Supplying 4-20mA, check operation and rotating direction.

Figure 10 CH2 DIP switch

OPEN

AUTO
CLOSE
FAULT

span

zero

close

open

AUTO

SETTING

LD1 LD2 LD3 LD4

CH2

F CLOSE
F OPEN
A FULL
CH1
CH2

Function of a PCU

1 2 3 4 5

VIEW C

7

Section 4: Function of a PCU

February 2017

4.10 Selection of output signal

The user can select suitable output signal by adjusting DIP switches as follows:

Figure 11 Output selection DIP switch

Service Instructions

HQ-401-0217

1 2

4 - 20mA DC

1 2

0 - 5V DC
1 - 5V DC

1 2

0 - 10V DC
2 - 10V DC

Select output signal

by dip switch

VIEW F

NOTE:

If there is no instruction for the input signal, 4-20mA is the factory default signal setting.

Adjust zero or span volume switch to meet the exact value of output signal in accordance with
input signal value.

8

Function of a PCU

Service Instructions

HQ-401-0217

Section 5: Special tools

1. L -Wrench 1 set (metric)

2. Screw driver(-)

3. Monkey spanner (1 set)

4. DC signal generator (0-24mA DC)

5. Multi-meter

6. mA DC meter (0-25mA DC)

Section 6: Setting potentiometer

(Replacing and setting)

1. Put actuator into full close position

2. Take P1 and P2 and measuring its resistance, turn potentiometer until it
reaches a value between 30 -100 Ohm.

3. Engage the potentiometer gear into main gear and tighten the screw.

Section 5: Special Tools

February 2017

Figure 12 Potentiometer schematic

Special Tools

9

Section 7: Limit Switch Setting

February 2017

Section 7: Limit switch setting

1. Pull over the lever for manual operation and turn hand wheel to
move actuator to full close (or open) position.

2. Loosen the bolts tightening cam by L-wrench, and turn CLS (or OLS) cam to
CW (or to CCW), so that cam may hit the lever of close (or open) limit switch.
Then tighten the bolt by L-wrench.

Figure 13 Potentiometer internal switch layout

Service Instructions

HQ-401-0217

10

Limit Switch Setting

Service Instructions

HQ-401-0217

Section 8: Check Operation of PCU

Section 8: Check operation of PCU

Table 1. PCU operation legend

Actuator Full Close Full Open

February 2017

Input signal 4mA DC (1V DC, 2V DC)

Output signal

Signal LED

Auto setting

Input signal failure

4mA DC

Green LED on

Section 9: Layout of PCU Card

Figure 14 PCU Card component layout and function

20mA DC (5V DC, 10V DC)

20mA DC

Red LED on

Blue LED flicker

Yellow LED flicker

Check Operation of PCU

11

Section 9: Layout of PCU Card

February 2017

Figure 15 PCU Card PCB layout and function highlight views

View E View A View C View D

Service Instructions

HQ-401-0217

View F View B

12

Layout of PCU Card

Service Instructions

HQ-401-0217

Section 10: Document Revision

Table 2. Revision Overview

ECN DATE REV BY * DATE

Released
Reviewed CHECKED D. Hoke December 2013

Approved APPROVED D. Hoke December 2013

December 2013 1

COMPILED C. Rico December 2013

Section 10: Document Revision

February 2017

Document Revision

13

Appendix

February 2017

Appendix A: List of Tables

Table 1. PCU Operation Legend .......................................................................................11

Table 2. Revision Overview .............................................................................................. 13

Appendix B: List of Figures

Figure 1. PCB LED Panel ....................................................................................................... 2

Figure 2. Input DIP switch ................................................................................................... 3

Figure 3. Fail position DIP setting ........................................................................................ 3

Figure 4. Delay rotary switch ............................................................................................... 4

Figure 5. Resolution adjustment switch ............................................................................... 4

Figure 6. Manual operation button ...................................................................................... 5

Figure 7. Special setting switch ...........................................................................................5

Figure 8. AUTO SETTING button .......................................................................................... 6

Figure 9. CH1 DIP switch ...................................................................................................... 6

Figure 10. CH2 DIP Switch ..................................................................................................... 7

Figure 11. Output selection DIP switch .................................................................................. 8

Figure 12. Potentiometer schematic ..................................................................................... 9

Figure 13. Potentiometer internal switch layout .................................................................. 10

Figure 14. PCU Card component layout and function .......................................................... 11

Figure 15. PCU Card PCB layout and function highlight views .............................................. 12

Service Instructions

HQ-401-0217

14

Appendix

Service Instructions

HQ-401-0217

Appendix

February 2017

Appendix C: List of Drawings

C.1 Dwg. No. HQ-15000-A , 1 Ph Wiring Diagram PCU

Appendix

15

Appendix

February 2017

Service Instructions

HQ-401-0217

C.2 Dwg. No. HQ-1500-A , 1 Ph Wiring Diagram Std.

16

Appendix

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