Skov Power supply 74-motor -136074 Technical User Guide

Brand: Skov

Model: Power supply 74-motor -136074

Type: Technical User Guide

Skov Power supply 74-motor -136074 is a compact and versatile device that can be used for a variety of applications. It has wide input voltage range (85-264 V AC) and provides a stable 24 V DC output voltage, making it suitable for use with various types of equipment. With its compact design, the power supply can be easily mounted on a DIN rail. It also features a variety of control options, including ON/OFF, Stepless, and 0-10 V Analog, providing flexibility for different control requirements.

2018.08.16 • 604338

136074

Power Supply 74 motor

Power supply 74-motor

24 V / 0.63 A / 85-264 V

Technical User Guide

English: For other language variants of this document we refer to:

Español: Para otras variantes del idioma de este documento, visite:

Français: Pour les versions dans d'autres langues de ce document veuillez consulter:

http://docs.skov.com/1077

136074

Power supply 74-motor

Product and Documentation Changes

We reserve the right to change this manual and the product described herein without further notice. In case of

doubt, please contact us.

Date of change appears from the front and back page.

Note

• No part of this manual may be reproduced in any manner.

• Every effort has been made to ensure the accuracy of the information contained in this manual. Should

any mistakes or imprecise information be found in spite of this, we would appreciate being notified

thereof.

Technical User Guide 
136074 
Power supply 74-motor 
PRODUCT DESCRIPTION ............................................................................... 5 
MOUNTING GUIDE .......................................................................................... 6 
1 Mounting and connection of the power supply .................................................... 6 
INSTALLATION GUIDE .................................................................................... 6 
1 Electrical connection ............................................................................................... 6 
2 ON/OFF ..................................................................................................................... 7 
2.1 Connection diagram ........................................................................................................... 7 
2.2 Circuit diagram .................................................................................................................... 7 
3 Stepless .................................................................................................................... 8 
3.1 Connection diagram ........................................................................................................... 8 
3.2 Circuit diagram .................................................................................................................... 8 
4 0-10 V Analog ........................................................................................................... 9 
4.1 Connection diagram ........................................................................................................... 9 
4.2 Circuit diagram .................................................................................................................... 9 
TESTING 74-WINCH MOTOR INCLUDING POWER SUPPLY ..................... 10 
TROUBLESHOOTING / REMEDY ................................................................. 10 
TECHNICAL DATA ......................................................................................... 11 
 
 
 
 
 
   

Technical User Guide 5

136074

Power supply 74-motor

1 Product description

The power supply 74-motor is an accessory for the 24 V DC 74 winch motor so that the motor can be supplied

with 85-264 V AC if there is no emergency opening. The 74-winch motor must remain controlled by 24 V DC

or a signal of 0-10 V.

The power supply 74-motor is supplied with 85-264 V AC. Mount it on the DIN rail at the bottom of the 74-

winch motor cabinet, and it supplies the motor with 24 V DC.

6 Technical User Guide

136074

Power supply 74-motor

2 Mounting guide

2.1 Mounting and connection of the power supply

1) Install varistor and wires (A) in the power supply 74-motor according to the image below and the

connection diagrams in section 3 Installation Guide.

2) Cut off the current supply to the 74-winch motor.

3) Click the power supply 74-motor (B) onto the DIN rail at the bottom of the cabinet.

4) Install the wires (C) from the power supply 74-motor according to the connection diagrams in section 3

Installation Guide.

5) Connect the controller according to the circuit diagrams in section 3 Installation Guide.

6) Set the jumper (D) on the 74-PCB to:

- ON/OFF

- Stepless

- 0-10 V

7) Reconnect the power supply to the 74-winch motor.

3 Installation Guide

3.1 Electrical connection

Installation, servicing and troubleshooting of all electrical equipment must be carried out by

qualified personnel in compliance with the applicable national and international standard EN

60204-1 and any other EU standards that are applicable in Europe.

The installation of a power supply isolator is needed for each motor and power supply to facilitate

voltage-free work on the electrical equipment. SKOV does not supply the power supply isolator.

Technical User Guide 7

136074

Power supply 74-motor

3.2 ON/OFF

Jumper for ON/OFF

setting

ON/OFF

Control voltage +24 V => Close.

Control voltage 0 V => Open.

Feedback signal > 0.5 V => O.C. turns ON.

Feedback signal > 1.8V (15 degree opening) => relay turns ON.

3.2.1 Connection diagram

3.2.2 Circuit diagram

74 winch motor

Fan

Example of terminal number

For correct connection

see the setup menu

Show connections in controller

8 Technical User Guide

136074

Power supply 74-motor

3.3 Stepless

Jumper for stepless

setting

STEPLESS

Control voltage + 24 V/0 V => Open. 0 V/24 V => Close.

Feedback signal > 0.5 V => O.C. turns ON.

Feedback signal > 9.2 V (85 degree opening) => relay turns ON.

3.3.1 Connection diagram

3.3.2 Circuit diagram

74 winch motor

Fan

Example of terminal number

For correct connection

see the setup menu

Show connections in controller

Technical User Guide 9

136074

Power supply 74-motor

3.4 0-10 V Analog

Jumper for analog

setting

0-10V ANALOG

Control voltage increases comparably with the opening degree. 2.3 V = 23% open.

The feedback signal increases comparably with the opening degree.

Feedback signal > 0.5 V => O.C. turns ON.

Feedback signal > 0.5V => relay turns ON.

3.4.1 Connection diagram

3.4.2 Circuit diagram

74 winch motor

Example of terminal number

For correct connection

see the setup menu

Show connections in controller

10 Technical User Guide

136074

Power supply 74-motor

4 Testing 74-winch motor including power supply

Perform the test to ensure that the installation is in order.

Assess whether a test now poses a hazard for the animals due to a hot climate or the fact that the

livestock house is full of full-grown animals.

1) Connect the power supply to the 74-winch motor

2) Check that:

• Blue lamp on the power supply is on.

• Green lamp flashes on the 74-motor PCB.

• A climate controller set to Manual can control the 74-winch motor: Open / Close.

3) Change the setting of the controller back to Auto after the test.

5 Troubleshooting / remedy

OK = slow flashing

Calibration = invariable light

Error = fast flashing

Symptom

Possible cause

Solution

The winch motor is not

running; LED lights up; does

not flash at all.

No power supply or is the

power supply less than 12 V?

Did you mount the motor

connector?

Did you forget the calibration?

Check the supply voltage.

Check the fuses.

Check assembly according to 3

Installation Guide

Mount the connector.

Press the CALIBRATE button. The LED

should emit an invariable light while the

winch motor opens and closes.

The LED (A) flashes rapidly;

ten times/second.

Did you forget the calibration?

The motor stutters.

Press the CALIBRATE button. The LED

should emit an invariable light while the

winch motor opens and closes.

Remove any object that may have been

trapped in the swivel shutter.

The swivel shutter not fully

open/closed

Did you forget the calibration?

Press the CALIBRATE button. The LED

should emit an invariable light while the

winch motor opens and closes.

Remove any object that may have been

trapped in the swivel shutter.

The winch motor is not

running

The ground wire between the

controller and the 74-winch

motor is missing.

Connect H3 or H8 to a negative terminal

on the controller.

(A)

Technical User Guide 11

136074

Power supply 74-motor

6 Technical data

Electrical

Operating voltage

V AC

85 – 264

Frequency

47 – 63

Output voltage

V DC

Output current

0.63

Environment

Temperature, operation

°C

-30 to +70

Ambient temperature

°C

-40 to +85

Shipment

Packing dimensions H x W x D

35 x 170 x 270

Shipping weight

200

136074

Power supply 74-motor

2018.08.16 • 604338 • 08.02 • EN • Made in Denmark

Skov Power supply 74-motor -136074 Technical User Guide

Skov Power supply 74-motor -136074 Technical User Guide

Skov Power supply 74-motor -136074 Technical User Guide

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