HORA MC55/24 User manual

OPERATING MANUAL
Linear actuators

TABLE OF CONTENTS
Operating manual
MC55/24 · MC55/230 · MC55Y
Operating manual
MC100/24 · MC100/230 · MC103/24 · MC103/230
Operating manual
MC160/24 · MC160/230 · MC161/24 · MC161/230
MC163/24 · MC163/230
Operating manual
MC220/24 · MC220/230 · MC223/24 · MC223/230
Operating manual
MC250/24 · MC250/230 · MC253/24 · MC253/230
MC500/24 · MC500/230 · MC503/24 · MC503/230

November 2014 / 112476 / EN
Operating Manual
Linear actuators
MC55/24 • MC55/230 • MC55Y

General information
Linear actuators MC55
2Version 3.3 - November 2014 Operating Manual
General information
Amendment
Copyright The copyright for this operating manual as well as all rights in case of patent
awarding or registration of registered design remains with the manufacturer!
Subject to alteration The regulations, directives, standards etc. are compliant with the current state of
information at the time of development and are not subject to modification service.
They must be applied by the operator at his own responsibility in their latest valid
version.
Concerning all data, information, and illustrations in this manual we reserve the
right of technical modifications and improvements. No claims can be considered
for alteration or rework of already delivered lift drives.
Manufacturer HORA
Geschäftsbereich Flow Control
Holter Regelarmaturen GmbH & Co. KG
Helleforthstrasse 58–60
33758 Schloss Holte-Stukenbrock
Germany
phone: [phone]
mail: [e-mail]
www.hora.de
Version Date Modifications
1.0 June 2006 Initial preparation
2.0 June 2007 Revision
3.0 May 2008 Complete revision and amendment
3.1 Juli 2009 Amendment MC65
3.2 March 2011 Revision
3.3 November 2011 Revision

Table of contents
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 3
Table of contents
1 Safety ......................................................................... 4
1.1 Proper use ............................................................... 4
1.2 Information for the operator ..................................... 4
1.3 Personnel................................................................. 5
1.4 Prior to starting work................................................ 5
1.5 During operation ...................................................... 5
1.6 Working environment............................................... 5
2 Product Specification ............................................... 6
2.1 Component parts ..................................................... 6
2.2 Operating modes ..................................................... 7
2.2.1 Continuous mode MC55Y ............................ 7
2.2.2 Three-point mode MC55/24, MC55/230 ....... 7
2.3 Functions ................................................................. 7
2.3.1 Binary signal / frost protection function MC55Y
7
2.3.2 Blockage detection ....................................... 8
2.3.3 Wire break detection MC55Y........................ 8
2.3.4 Actuating time............................................... 8
2.3.5 Manual operation.......................................... 8
2.4 Technical data ......................................................... 9
2.5 Type plate .............................................................. 10
3 Transportation & Storage....................................... 10
4 Assembly..................................................................11
4.1 Checking the scope of delivery ..............................11
4.2 Preparing assembly ...............................................11
4.3 Mounting the linear actuator on the valve ..............12
4.4 Assembling/disassembling the cover.....................13
4.5 Electrical connection ..............................................14
4.5.1 Controller independent circuit MC55Y ........16
4.5.2 Remove push-fit PCB and transformer
MC55/230 ...................................................17
5 Commissioning........................................................18
5.1 Operating parameters and jumper settings............19
5.2 Setting the input signal for MC55Y.........................19
5.3 Setting the actuating time.......................................19
5.4 Setting the actuating direction................................20
5.5 Setting the limit position for MC55Y.......................21
5.6 Commissioning.......................................................21
6 Operation..................................................................22
6.1 Changing between manual and automatic mode...22
7 Maintenance, care and repairs ...............................23
8 Spare parts...............................................................23
9 Decommissioning and disposal.............................23
10 Removal of faults.....................................................23
10.1 How to remedy faults .............................................23
10.2 Check list for breakdown........................................24

1 Safety
Linear actuators MC55
4Version 3.3 - November 2014 Operating Manual
1 Safety
Read these Operating Instructions carefully particularly the following safety
instructions prior to installation and operation.
DANGER
DANGER
Directly threatening hazard leading to death or serious physical injuries.
WARNING
WARNING
Potentially hazardous situation which may lead to death or serious physical
injuries.
CAUTION
CAUTION
Potentially hazardous situation which could lead to minor physical injuries.
Indicates a hazard which may cause material damage.
ATTENTION
ATTENTION
Potentially hazardous situation where the product or an object in its environment
may get damaged.
Hint: Utilisation instructions and other useful information.
1.1 Proper use
Linear actuators MC55/24, MC55/230, MC55Y are controlled by three-point
control or constant control. Linear actuators in the series described in these
Operating Instructions are used for valve stroke adjustment.
Concurrence of the above type designation with the linear actuator rating plate
must be checked prior to starting any operations in order to guarantee utilisation
in accordance with specification. The data on the rating plate is decisive for linear
actuator technical data and mains power supply requirements.
Any utilisation for tasks other than the aforementioned usage in accordance with
specification and operating with mains power supply ratios other than those
permitted is not deemed to be utilisation in accordance with specification. The
operator bears sole liability for the risk to persons and machine and other assets
in the event of utilisation not in accordance with specification.
The intended use also includes the compliance with accident preventions, DIN
VDE regulations and safe working practices for all measures described in these
operating instructions in due consideration of prevailing rules.
1.2 Information for the operator
Always keep the Operating Instructions available at the linear actuator
deployment site.
Observe the current health and safety, accident prevention and DIN VDE
standards for installation, operation and maintenance.
Take into consideration any additional regional, local or in-house safety
regulations.

1Safety
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 5
Ensure that every person entrusted with one of the tasks specified in these
Operating Instructions has read and understood these instructions.
1.3 Personnel
Only qualified personnel may work on these linear actuators or in their vicinity.
Qualified persons are those persons entrusted with installation, assembly,
commissioning and operation or maintenance of the linear actuators and
possessing the appropriate qualifications for their activity. The necessary and
prescribed qualifications include:
•Training / instruction or authorization to turn on /off circuits and appliances /
systems according to EN 60204 (DIN VDE 0100 / 0113) and the standards of
safety technology.
•Training or instruction according to the standards of the safety technology
concerning care and use of adequate safety and work protection equipment.
•First Aid training.
Work in a safe manner and refrain from any working practice which endangers the
safety of persons or damages the linear actuator or other assets in any way
whatsoever.
1.4 Prior to starting work
Prior to starting any work, check that the type designations specified here concur
with the data on the linear actuator rating plate.
Linear actuators MC55/24, MC55/230, MC55Y.
1.5 During operation
Safe operation is only possible if transportation, storage, installation, operation
and maintenance are carried out safely and materially and professionally
correctly.
Transportation,
installation and
assembly
Observe the general set-up and safety regulations for heating, ventilation, air-
conditioning and pipework design. Use tools correctly. Wear the necessary
personal and other safety equipment.
Repairs and
maintenance
Ensure that qualified personnel switch off the linear actuator prior to maintenance
or repair work in accordance with DIN VDE.
1.6 Working environment
Read the data concerning the working environment in the Technical Data.

2 Product Specification
Linear actuators MC55
6Version 3.3 - November 2014 Operating Manual
2 Product Specification
The linear actuators control a stepper motor by means of a micro controller. The
rotational movement of the stepper motor is converted into a linear movement by
spur gears and a threaded spindle with spindle nut.
2.1 Component parts
1Actuator housing
2Cross head
6Clutch
8Position display unit
11 Distance sleeve
15.1Gear plate
27 Spacer for 230 V*
28 C-frame
34 Slide Valve
36 Hand wheel
101 Engine/ motor
107 Push-fit PCB for 24 V, 230 V or 115 V
110 Main board
201 Cover*
230 Cable lead-in M16 × 1,5*
231 Cable lead-in M12 × 1.5*
308 Safety disk*
448 Hexagon nut M8*
480 Type plate
481 Wiring diagram on cover
diagram 1 Component part denominations
* This component part is available as a spare part.
481
480
110
15.1
101
27
107
230;
231
36
201
34
1
28
230 V
8
2
6
11
308
448
110
101
6
8
28
230
231
36
201
11
2
308
448
481 107
27
15.1
34
1
480

2 Product Specification
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 7
2.2 Operating modes
The linear actuator can be operated manually or automatically.
•In manual mode stroke is adjusted via the hand wheel.
•In automatic mode stroke is controlled electrically.
2.2.1 Continuous mode MC55Y
In continuous mode the system control presets the position of the linear actuator
whilst inside the linear actuator the input signal (Y) of the system control is
continuously compared with the output signal (X) of the linear actuator. In doing
so the output signal depends on the position of the linear actuator (travel).
The linear actuator keeps moving until the input signal and the output signal
match.
Input signal (Y) The input signal (Y) of the system control specifies the desired position for the
linear actuator. It is applied in the form of an analogue signal to terminal Y.
Possible input signals:
•0…10VDC/2…10VDC
•0…20mA/4…20mA
Output signal (X) The output signal (X) determines the actual position of the linear actuator. It is
applied to terminal X in the form of an analogue signal.
0% to 100% valve lift is put out as:
•0 … 10 V DC
2.2.2 Three-point mode MC55/24, MC55/230
The direction of rotation is set via the control voltage at terminal 2 and terminal 3
on the main PCB:
•When the control voltage is applied to terminal 2, the spindle nut will be
extended.
•When the control voltage is applied to terminal 3, the spindle nut will be
retracted.
Output signal (X) The output signal (X) determines the actual position of the linear actuator. It is
applied to terminal X in the form of an analogue signal.
0% to 100% valve lift is put out as:
•0 … 10 V DC
2.3 Functions
2.3.1 Binary signal / frost protection function MC55Y
The terminals B1 and B2 on the main PCB are bridged during normal operation.
If the electric circuit between B1 and B2 is interrupted, the linear actuator will store
the current position and afterwards move automatically to its limit position.
All other control signals will be ignored during this process.
The linear actuator will remain in limit position until the electric circuit between B1
and B2 has closed.
As soon as the electric circuit between B1 and B2 is closed, the desired value of
the input signal will be started.
5.5 Setting the limit position for MC55Y on page 21

2 Product Specification
Linear actuators MC55
8Version 3.3 - November 2014 Operating Manual
2.3.2 Blockage detection
When the linear actuator is mechanically blocked the blockage detector will turn
off the motor as soon as one of the two limit positions have been reached or a
blockage occurs due to overload.
2.3.3 Wire break detection MC55Y
Wire break detection is only available for continuous mode with an input signal
2 … 10 V DC and 4 … 20 mA.
The linear actuator moves to the limit position set by jumper JP2 if the input signal
drops below 1 V or 2 mA.
5.5 Setting the limit position for MC55Y on page 21
2.3.4 Actuating time
The time required for the spindle nut to travel a defined distance is called
actuating time. Actuating time is specified in s/mm. Jumper JP3 on the plug-in
jumper wire is used to set the actuating time.
5.3 Setting the actuating time on page 19
2.3.5 Manual operation
In manual mode it is possible to change the stroke without supply voltage.
•Motor and control electronics are turned off in manual mode to make hoisting
movements of the control impossible.
6.1 Changing between manual and automatic mode on page 22

2 Product Specification
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 9
2.4 Technical data
Type MC55/24, MC55Y MC55/230
Supply voltage: 24 V AC ± 10%
24 V DC ± 10%
230 V AC + 6% -10%
115 V AC ± 10%
Power consumption 3,5 VA 7 VA
Weight 1.5 kg 1.5 kg
Dimensions See technical data sheets
Stroke MC55 max. 20 mm max. 20 mm
Frequency 50/60 Hz ± 5% 50/60 Hz ± 5%
Ambient temperature 0 to +60°C 0 to +60°C
Enclosure protection IP 54
IP 30 in manual mode
IP 54
IP 30 in manual mode
Operating mode S3-50% ED S3-50% ED
Actuating time 9 or 5 s/mm 9 or 5 s/mm
Actuating force 0.6 kN
During 24 V DC the
specified actuating force
can only be reached with
the help of an aligned AC
voltage.
0.6 kN
table 1 Technical data
Type MC55/24, MC55/230 MC55Y
Input signal Y/
Resistance of load
• Three-point • 0 … 10 V DC / 77 k
• 2 … 10 V DC / 77 k
• 0 … 20 mA / 510 
• 4 … 20 mA / 510 
Output signal X/
Load rating
• 0 … 10 V DC / resistance of load 1200 , Imax. 8
mA
Cable impedance between B1
and B2
• max. 10 
table 2 Technical data signals

3 Transportation & Storage
Linear actuators MC55
10 Version 3.3 - November 2014 Operating Manual
2.5 Type plate
The type plate is attached to the housing of the linear actuator.
It bears the type denomination, serial number (s/no) and date of manufacture (last
four digits).
2.1 Component parts on page 6
3 Transportation & Storage
CAUTION
Non-compliance with safety regulations may result in injury!
•Wear the required personal and other safety equipment.
•Avoid impacts, blows, vibrations etc. to the linear actuator.
•Store the linear actuator (and, where appropriate, the entire controlling device)
in a dry place.
•Keep to the specified transport and storage temperatures between -20 to
+65°C.
diagram 2 Example of type plate
MC55Y 08203017/01/0408
AC 50/60 Hz
max 3.5 VA
24V
IP 54/30

4 Assembly
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 11
4 Assembly
Prior to assembling the linear actuator:
4.1 Checking the scope of delivery on page 11
4.2 Preparing assembly on page 11
The following sequence of operations is part of the linear actuator assembly:
4.3 Mounting the linear actuator on the valve on page 12
4.4 Assembling/disassembling the cover on page 13
4.5 Electrical connection on page 14
4.1 Checking the scope of delivery
1Check the packaging for damage.
2Dispose of packaging in an environmentally friendly manner.
3Check the delivered items against the delivery note in order to see whether the
delivery is complete.
4Report any missing or damaged products to the manufacturer.
4.2 Preparing assembly
ATTENTION
A non-attached valve causes damage!
If you operate the linear actuator without valve, the spindle nut may fall off due to
the missing stroke.
•Always operate the linear actuator with a valve attached.
1Allow for about 140 mm space above the cover at the site of installation.
2Check the working environment before assembling and commissioning the linear
actuator:
3Ensure that the valve is correctly fitted. For details please see assembly
instructions for valve.
4Determine the assembly position of the linear actuator. Do not arrange linear
actuators in a hanging position.
diagram 3 Assembly positions for linear actuator and valve
M
MM
M
M
M
A - B
AB A
B
A
B
A-B

4 Assembly
Linear actuators MC55
12 Version 3.3 - November 2014 Operating Manual
4.3 Mounting the linear actuator on the valve
If the linear actuator and the valve are supplied separately you will have to mount
the linear actuator on the valve.
How to assemble linear actuator:
1Place actuator with crossbeam (2) on valve neck (19).
diagram 4 on page 12
2Insert the C-frame (28) and, using a mounting aid, pull the valve stem upwards
(18) (23) until the valve stem (18) locks inside the clutch (6).
3Fix the crossbeam (2) of the actuator with the help of screws(428) spanner width
13 and lock washers (311) on the valve neck (19).
How to disassemble the linear actuator
1Follow the sequence of operation in reverse order.
2Cross head
6Clutch
18 Valve stem
19 Valve neck
23 Assembly aid
28 C-frame
34 Slide Valve
36 Hand wheel
311 Lock washers
428 Screws
diagram 4 Mounting the linear actuator on the valve
201
7 mm

4 Assembly
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 13
4.4 Assembling/disassembling the cover
WARNING
Risk of injury from electric shock by live parts!
When the power supply is on there is a danger of electric shock due to live parts.
•Prior to commencing any work, ensure that the actuator is safely disconnected
from the power supply system.
•Secure against unauthorised restarting.
•Remove the cover only momentarily.
How to remove the cover
1Insert a screwdriver in the notch of the cover and lift the cover (201).
2Remove the cover (201) carefully.
How to attach the cover
Hint: The cover may be mounted in any position.
1Place the cover (201) on top and push it down to make it fit by applying
moderate force.
2Check the cover for correct fit to ensure air-tightness for the actuator housing.
201 Cover
diagram 5 Removing the cover
201
7 mm

4 Assembly
Linear actuators MC55
14 Version 3.3 - November 2014 Operating Manual
4.5 Electrical connection
WARNING
Danger of life caused by incompetent staff!
Electrical connections carried out by unqualified staff may result in death, severe
bodily injury or considerable material damage.
•Make sure that such all work is carried out by qualified staff.
1.3 Personnel on page 5
WARNING
Risk of injury from electric shock by live parts!
When the supply voltage is turned on there is a risk of electric shock from live
parts.
•Prior to commencing any work, ensure that the actuator is safely disconnected
from the power supply system.
•Secure against unauthorised restarting.
How to prepare the electric connection
1Ensure that the supply voltage matches the specifications on the type place of
the linear actuator.
2To avoid breakdown, construct the line diameter according to actuating
performance and required line length.
3Lay the mains for a supply voltage of > 48 V separate from the signal and control
wires.
When laying cables in a joint cable duct, use shielded control wires.
4Check the supply voltage.
If the required tolerance is not achieved by a power transformer you will have to
use an AC voltage stabilizer.
2.4 Technical data on page 9
How to establish electrical connection
1Remove the cover (201).
How to remove the cover on page 13
2Run the cable through the screw joint to the terminal strip.
3Connect the power supply according to the wiring diagram.
diagram 6 on page 15
Hint: The wiring diagram (481) is on the cover (201).
ATTENTION
Malfunctions caused by incorrect zero potential!
If the electric power supply for the linear actuator is fed by transducing sensors
with varying zero potentials this may result in incorrect automatic controller action.
•Ensure that the zero potential is properly applied.
table 3 on page 15
4Tighten the screw joints.

4 Assembly
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 15
diagram 6 Circuit diagram
Terminal Description
UB, N1 Supply voltage:
2Control voltage for downward movement during three-point mode
3Control voltage for upward movement during three-point mode
B1, B2 Binary input / frost protection function
N2 Zero potential of signal X at 230 V AC
• If you run the actuator in three-point mode at 230 V you will
have to connect N2 before you can use X.
YInput signal continuous mode
XOutput signal
table 3 Key to wiring diagram
N (GND)
0
230 VAC
UB N1 N2 X
TGND
U
32
N (GND)
0
3
N1UB X
2
24 VAC /
24 VDC
T
U
B1
N (GND)
N1UB XY
24 VAC /
24 VDC
U
B2

4 Assembly
Linear actuators MC55
16 Version 3.3 - November 2014 Operating Manual
4.5.1 Controller independent circuit MC55Y
When working with 24 V supply voltage and 0 … 10 V DC / 2 … 10 V DC input
signal you can switch the actuator controller-independently via a three-step
toggle switch in the control cabinet.
How to switch the actuator controller-independently
1Run the supply voltage 24 V AC via a diode and a three-step toggle switch to
terminal Y.
2Using the toggle you can move the linear actuator to the following positions:
•Closed-loop control by input signal Y (normal operation)
•10 V-position
•0 V-Position, the linear actuator can be moved to the position on the plug-in
jumper selected by jumper JP2 at 2 … 10 V DC .
5.1 Operating parameters and jumper settings on page 19
5.5 Setting the limit position for MC55Y on page 21
z
diagram 7 Controller independent circuit
Example: 1N4001;
1N4148
10 V Pos.
0 V Pos.
Closed-loop control

4 Assembly
Linear actuators MC55
Operating Manual Version 3.3 - November 2014 17
4.5.2 Remove push-fit PCB and transformer MC55/230
To change settings you have to remove the push-fit PCB (107) on the 230 V
model.
WARNING
Risk of injury from electric shock by live parts!
When the power supply is on there is a danger of electric shock due to live parts.
•Prior to commencing any work, ensure that the actuator is safely disconnected
from the power supply system.
•Secure against unauthorised restarting.
1Detach the two screws (367)
2Pull off the push-fit PCB (107) in a straight movement from the spacers (27) and
hold the gear plate by pressing it against the motor.
3Access to plug-in jumpers (113) JP2 to JP5 is now established.
4After making changes to the setting carefully put the PCB back on.
Hint: When doing so, make sure that the socket strip fits correctly on the pin strip (124).
5Tighten both screws (367).
107 push-fit PCB
diagram 8 Remove push-fit CB and transformer
JP2
JP3
JP4
JP5
JP2
JP3
JP4
JP5
113
27
230 V mit Trafo
110
107
110
124
ohne Trafo
367
110
107
367
27
230 V with transformer without transformer 124
113
110

5 Commissioning
Linear actuators MC55
18 Version 3.3 - November 2014 Operating Manual
5 Commissioning
WARNING
Risk of injury from electric shock by live parts!
When the power supply is on there is a danger of electric shock due to live parts.
•Prior to commencing any work, ensure that the actuator is safely disconnected
from the power supply system.
•Secure against unauthorised restarting.
The jumpers on the plug-in jumper are used to set the operating parameters
(113). The plug-in jumper and the jumpers are underneath the push-fit PCB (107)
in the actuator housing (1).
4.4 Assembling/disassembling the cover on page 13
4.5.2 Remove push-fit PCB and transformer MC55/230 on page 17
113 Plug-in jumper JP1-JP6 MC55Y 113 Plug-in jumper JP2-JP5 MC55/24, MC55/230
diagram 9 Plug-in jumper position on the main PCB
JP6
JP5
JP4
JP3
JP2
JP1
24 V / 230 V
Y
JP6
JP5
JP4
JP3
JP2
JP1
JP2
JP3
JP4
JP5
113