HKC CPT-01-A Instruction manual

CPT Current Position Transmitter
Installation Operation& Maintenance Manual
Doc No. : HumG-CPT-20 Rev0 Page 1 / 6 Valve Automation Leader, HKC
Current Position Transmitter
Installation, Operation & Maintenance Manual
Address : 26, Emtibeui 28-ro, Siheung-si, Gyeonggi-do, (15119) Republic of Korea
Tel : [phone], Fax : [phone], Home page : www.hkcon.co.kr, email : [email protected]

CPT Current Position Transmitter
Installation Operation& Maintenance Manual
Doc No. : HumG-CPT-20 Rev0 Page 2 / 6 Valve Automation Leader, HKC
Contents
1. Introduction .............................................................................................................................................. 3
1.1. Purpose................................................................................................................................................................... 3
1.2. Safety Notices ....................................................................................................................................................... 3
2. Pre-check points before operation ........................................................................................................ 3
2.1. Check point ............................................................................................................................................................ 3
3. General concept ....................................................................................................................................... 3
3.1. General information ............................................................................................................................................. 3
3.2. Standard specification ......................................................................................................................................... 3
4. Main function and how to use Zero / Span setting .............................................................................. 3
5. Tools of adjustment ................................................................................................................................. 4
6. How to set for normal open actuator ..................................................................................................... 4
7. How to set potentiometer ........................................................................................................................ 4
8. How to set limit switches ........................................................................................................................ 4
9. Maintenance ............................................................................................................................................. 5
10. CPT card layout ....................................................................................................................................... 5

CPT Current Position Transmitter
Installation Operation& Maintenance Manual
Doc No. : HumG-CPT-20 Rev0 Page 3 / 6 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
CPT (Current Position Transmitter) for electric actuators. Before you start work, please read this manual
carefully and this manual contains important information regarding the installation, operation,
maintenance for HQ series electric quarter turn actuator. This manual can be changed without notice for
quality improvement.
1.2. Safety Notices
Safety notices in this manual outline precaution 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-series 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. Pre-check points before operation
2.1. Check point
2.1.1. User should confirm if actuator and valve are assembled correctly and firmly.
2.1.2. And check limit switches, stopper bolts, indicator setting.
2.1.3. Please check electric power, input and output signal, and wiring and etc.
2.1.4. In case electric power is 3 phases, you must check Rotating direction of actuator.
2.1.5. How to check rotating direction
① Place actuator at the position 50% by manual first, and supply electric power for about 5 seconds
toward “Close” from panel.
② Then, you will understand actuator is operating in correct or opposite direction. If it turns to
“Open” direction, cut the power, and change two wires of the three of 3 phases.
3. General concept
3.1. General information
As a potentiometer reads actuator’s current position and transfers resistance value to CPT card.
And it indicates actuator position throughout the stroke by 4~20 mA output signal.
3.2. Standard specification
Model
CPT
-
01
-
A
Power
220 (110) V ac
±
10%, 50/60 Hz, 4 VA max.
Output signal
4~20 mA dc
Load resistance
750
Ω
max.
Resolution
1/1,000 min.
Position conversion accuracy
±
0.5 ~
±
1.5%
It could be different based on installation and/or operation
condition.
Ambient temperature
-
1
0 ℃~ + 60 ℃
Ambient humidity
90% RH max. (non
-
condensing)
Dielectric strength
1,500 V ac, 1
minute (input and output power to ground)
Insulation resistance
30 M
Ω
at 500 V dc and over
Vibration and shock
X, Y, Z axis
’
s 10g (standard: 6g RMF)
Frequency : 0.2~34 Hz, within 30 minutes
4. Main function and how to use Zero / Span setting

CPT Current Position Transmitter
Installation Operation& Maintenance Manual
Doc No. : HumG-CPT-20 Rev0 Page 4 / 6 Valve Automation Leader, HKC
4.1. Pleased put about 50% open position of the actuator by manual first, then supply electric power to
close from panel.
4.2. When the actuator is fully closed, adjust Zero volume to achieve 4 mA
4.3. Same as above way, open from panel. And when the actuator is fully opened, adjust Span volume
to achieve 20mA.
4.4. This adjustment may be repeated several times to achieve accurate output value.
5. Tools of adjustment
5.1. 1 set of Allen key (L-wrench mm)
5.2. Small size of driver
5.3. A set of spanner
5.4. Dc signal generator (0~25 mA dc)
5.5. Ac volt, dc volt, Ohm meter
5.6. mA dc meter (0~25 mA dc)
6. How to set for normal open actuator
Note:
 Above subject means that you need to change direction of the actuator from clock wise close
type (It is same means counter clock wise open type.)
6.1. Open top-cover of the actuator using Allen key
6.2. Cross change wiring of P1, P3 (Red, Black) where connected to Potentiometer in CPT card.
6.3. Change wiring of No.9, No.10 first and No.11, No.12 in Terminal block.
6.4. Change direction of Position indicator.
6.5. Move indicator at about 50% open position by manual, and confirm the output value in panel (4mA when
closed, 20mA when opened)
7. How to set potentiometer
7.1. Put the actuator at fully closed position.
7.2. Make resistance value of lead wire of Potentiometer range from 80 to 1,200 HM
7.3. Attach and adhere Point shaft gear to Potentiometer gear and tighten them using Allen key (L-wrench).
7.4. Fix Potentiometer by putting spring as below picture.
8. How to set limit switches
8.1. Make valve and/or damper fully closed by turning manual handle in direction of CW as you pull handle
lever of actuator.

CPT Current Position Transmitter
Installation Operation& Maintenance Manual
Doc No. : HumG-CPT-20 Rev0 Page 5 / 6 Valve Automation Leader, HKC
8.2. Using L-wrench, loosen clamp bolts on cam. And rotate CLS cam clock wise or counter clock wise until
switch lever arm rides on the curved portion of the cam. Then tighten fixing bolt by using L-wrench.
(Actuator can go further toward closed position as CLS cam is rotated toward CCW like below picture).
8.3. Rotate actuator and/or damper to open position. And rotate OLS cam clock wise or counter clock wise
until switch lever arm rides on the curved portion of the cam. Then tighten fixing bolt by using L-wrench.
(Actuator can go further toward closed position as OLS cam is rotated toward CW like below picture)
.
9. Maintenance
9.1. Test operation in regular: You’d better do test operation in regular (once a week). And please always
supply electric power even though actuator and valve are not used for more than a month.
9.2. Periodical maintenance: Periodical check and maintenance is necessary for long term operation. You
should do overhaul check at least once a year and do maintenance immediately if required.
9.3. General manual: This manual is mainly for CPT card. So, please refer to HQ series IOM manual if you
need more detailed information.
10. CPT card layout
CPT Card (CPT4-TR V1.2)

CPT Current Position Transmitter
Installation Operation& Maintenance Manual
Doc No. : HumG-CPT-20 Rev0 Page 6 / 6 Valve Automation Leader, HKC
11. Trouble shooting include actuator
WARNING:
 Turn off all power before attempting to perform maintenance on the CPT.
 POTENTIALLY HIGH PRESSURE VESSEL. Before removing or disassembling your actuator, ensure
that the valve or other actuated device is isolated and not under pressure.
Phenomena
Possible
cause
Action by user
Actuator does not
move
(Motor stops)
Power off
Power on
Low voltage
Check electric power
Different power between motor power and
supplying power
Confirm electric power on name plate
and supplying power
Unconnected wires
Connect
wire correctly
Input signal faults
Check input signal
Motor coil is damaged
Replace a new motor produced by the
maker
Condenser is damaged
Replace a new one produced by the
maker
Thermal protector is off due to overheating
of motor (causes hunting)
Lower to ambient temperature, and
reduce operation cycles.
Wrong adjustment of limit switches
Re
-
adjustment by operation manual
Malfunction of torque switches
Check the valve and its required torque
Torque switch operation jamming by
reverse discrimination operation
Confirm rotating direction by the way of
phase confirmation and dissolve
jamming
No output signal
CPT card power is off
Power on
Resistance value of PIU is fault
Check resistance value
CPT card is damaged
Replace a new one
produced by the
maker
Torque switch fails to
stop of the valve
travel in correct
position
Valve or Damper torque value is higher
than the actuator
Change actuator that has enough torque
for valve or damper torque
Corrosion or some materials of valve
increase required operation torque of the
valve
Check the valve and re
pair or replace
the valve
Actuator stopper
might to be set to operate
faster than limit switches
Re
-
adjust stopper bolts based on
I
OM
manual
Malfunction of manual
transition lever
Manual transition lever was not pulled
up
to vertical shape
Pull manual transition lever to be verti
cal
shape
Manual transiti
on lever
does not move due
to jamming
Dissolve
jamming
based on
I
OM
m
anual
Cl
utch o
f
le
ver
and handle are attached
each other
Pull the lever while turning han
dle
slowly
Mal
func
tion
of LED of
close / open / over-
torque / power
Signal LED is damaged
Replace the signal LED unit
Micro
-
switches
are
damaged
Replace the micro
-
switches
Wrong setting of the limit switches
Re
-
adjustm
ent of the limit switches
Actuator stopper is set to operate faster
than limit switches
Re
-
adjustment of t
he stopper bolts
No work by remote
control
Different wiring from electrical drawing
Re
-
wiring in correct as electrical drawing
LCU is not set as Remote position
Locate or set the LCU for remote
position
HKC Co., Ltd.
Head Office & Plant Tel: [phone], Fax: [phone]
Address 26, Emtibeui 28-ro, Siheung-si, Gyeonggi-do,(15119), Republic of Korea
Website www.hkcon.co.kr