Skov DOL 31 Manual

DOL 31 Speed Controller
Technical User Guide
612061 • 2022-10-17

DOL 31 Speed Controller
2 Technical User Guide
Product and Documentation Changes
SKOV A/S reserves the right to change this document and the product herein described without further notice.
In case of doubt, please contact SKOV A/S.
The date of change appears from the front and back pages.
Note
• All rights belong to SKOV A/S. No part of this manual may be reproduced in any manner whatsoever without
the expressed written permission of SKOV A/S in each case.
• All reasonable efforts have been made to ensure the accuracy of the information contained in this manual.
Should any mistakes or imprecise information occur in spite of this, SKOV A/S would appreciate being noti-
fied thereof.
• Irrespective of the above, SKOV A/S shall not accept any liability with regard to loss or damage caused or
alleged to be caused by reliance on any information contained herein.
• Copyright by SKOV A/S.

DOL 31 Speed Controller
1 Product description ....................................................................................................................................... 5
1.1 DOL 31 Automatic – Master mode............................................................................................ 5
1.2 DOL 31 Automatic – Slave mode.............................................................................................. 6
1.3 DOL 31 manual control.............................................................................................................. 6
2 Product survey ............................................................................................................................................... 7
3 Mounting guide............................................................................................................................................... 8
3.1 Recommended tools.................................................................................................................. 8
3.2 Mounting of DOL 31 speed controller...................................................................................... 9
4 Installation guide.......................................................................................................................................... 10
4.1 Cabling...................................................................................................................................... 10
4.2 Dismantling the AUT-0-MAN switch in DOL 31 16 A ............................................................ 10
4.3 Connection in DOL 31 ............................................................................................................. 11
4.4 Cable plans and circuit diagrams........................................................................................... 12
4.4.1 General information about circuit diagrams ............................................................................... 12
4.4.2 Color code.................................................................................................................................. 12
4.4.3 Power supply isolator................................................................................................................. 12
4.4.4 Letter code ................................................................................................................................. 12
4.4.5 Cable plan controller DOL 31..................................................................................................... 13
4.4.6 Circuit diagram controller to DOL 31.......................................................................................... 13
4.4.7 Cable plan DOL 31 Master and Slave ....................................................................................... 14
4.4.8 Circuit diagram DOL 31 Master and Slave ................................................................................ 14
5 User guide..................................................................................................................................................... 15
5.1 Operation .................................................................................................................................. 15
5.2 Alarm lamp ............................................................................................................................... 15
5.3 Display ...................................................................................................................................... 15
5.4 AUT-0-MAN switch................................................................................................................... 15
5.5 Keyboard .................................................................................................................................. 16
5.6 Menu Survey............................................................................................................................. 16
6 Menu mode ................................................................................................................................................... 17
6.1 Automatic - Master mode ........................................................................................................ 17
6.1.1 Set temperature ......................................................................................................................... 17
6.2 Automatic Slave mode ............................................................................................................ 17
6.3 Manual mode ............................................................................................................................ 18
6.3.1 Set output................................................................................................................................... 18
6.4 Minimum regulation of AC output .......................................................................................... 18
6.5 Minimum regulation of AC output .......................................................................................... 19
7 Service menu ................................................................................................................................................ 20
7.1 Active Alarms ........................................................................................................................... 20
7.2 Set temperature alarm ............................................................................................................. 20
7.3 Set control temperature .......................................................................................................... 21
7.4 Set P band ................................................................................................................................ 21
7.5 Set mininmum analog DC output ........................................................................................... 22
7.6 Set maximum analog DC output............................................................................................. 22
7.7 Selecting temperature scale ................................................................................................... 22
7.8 Invert ......................................................................................................................................... 22
7.9 Turn off functions .................................................................................................................... 23
Technical User Guide

DOL 31 Speed Controller
Technical User Guide
7.9.1 Turn off....................................................................................................................................... 23
7.9.2 Set turn off limit .......................................................................................................................... 24
7.10 Contrast .................................................................................................................................... 24
7.11 Backlight................................................................................................................................... 24
7.12 Language .................................................................................................................................. 24
7.13 Version Information ................................................................................................................. 24
8 Settings ......................................................................................................................................................... 25
8.1 Factory settings ....................................................................................................................... 25
8.2 Functions in menu mode ........................................................................................................ 25
8.3 Table relating to DOL 12 temperature sensor control.......................................................... 26
9 Replacing Triac............................................................................................................................................. 27
10 Maintenance.................................................................................................................................................. 28
10.1 Cleaning.................................................................................................................................... 28
10.2 Recycling/Disposal .................................................................................................................. 28
11 Trouble shooting instructions .................................................................................................................... 29
12 Technical data .............................................................................................................................................. 30

DOL 31 Speed Controller
Technical User Guide 5
1 Product description
DOL 31 is a single-phase triac speed controller for e.g. regulation of fans, stand-alone heating units or light.
DOL 31 can with advantage be used in applications where a complete climate controller is not required.
DOL 31 can be set to three different modes of operation:
• Automatic - Master mode in which the DOL 31 output is controlled on the basis of the ambient temperature.
Each DOL 31 is supplied with one DOL 12 temperature sensor.
• Automatic - Slave mode in which the DOL 31 output is controlled by a 0-10 V input signal.
• Manual control in which the DOL 31 output is set manually by means of the keyboard on the front.
In addition, DOL 31 has an alarm relay (max. 24 V, 1A), and 1 control relay (max. 230 V, 12 A). The control re-
lay could for instance be used for turning a heat or cooling source on and off.
DOL 31 speed controller is available in a 6.8 A and a 16 A version.
1.1 DOL 31 Automatic – Master mode
Temperature-controlled by means of a DOL 12 temperature sensor.
Fan
Fan
DOL 12
Heating
Heating
DOL 12
Fan/Heating
DOL 12
Regulation of fans Regulation of heating Control of one or more DOL 31, ex-
tended capacity.
Fan
DOL 12
Regulation of fan
0-10 V or 10-0 V

DOL 31 Speed Controller
6 Technical User Guide
1.2 DOL 31 Automatic – Slave mode
Controlled by a 0-10 V input signal.
Controlled by a SKOV A/S controller Controlled by DOL 31
1.3 DOL 31 manual control
Fan Light Fan
Controlled manually with setting via the keyboard. Output can be
set to 0 to 100 %.

DOL 31 Speed Controller
Technical User Guide 7
2 Product survey
130171 DOL 31 speed controller 6.8 A
0-10 V input or DOL 12 input (1)
0-10 V output (1)
60-230 V output (1)
24 V output (1)
24 V alarm relay (1)
230 V control relay (1)
Supplied with:
1 DOL 12 temperature sensor, 3 plastic glands M25 and 3 plastic nuts M25.
130172 DOL 31 speed controller 16 A
0-10 V input or DOL 12 input (1)
0-10 V output (1)
60-230 V output (1)
24 V output (1)
24 V alarm relay (1)
230 V control relay (1)
Supplied with:
1 DOL 12 temperature sensor, 3 plastic glands M25 and 3 plastic nuts M25.

DOL 31 Speed Controller
8 Technical User Guide
3 Mounting guide
3.1 Recommended tools
Below follows a list of tools recommended for installation of the DOL 31.
Item Description
Cordless drill
Drill kit
Hammer
Marker pen
Multimeter
Tape measure
Side cutter
Screwdriver
Spirit level

DOL 31 Speed Controller
Technical User Guide 9
3.2 Mounting of DOL 31 speed controller
1. Remove the front panel and the flat cable plug (A).
2. Knock out the required number of knock-out pieces (B) at the bottom of the cabinet and mount the plastic
glands.
3. Prick/drill holes for the 4 screws (C) in the bottom section of the cabinet.
4. Remember free space around the cabinet:
• 10 cm (D) on the right side for operation of the AUT–0–MAN (Auto/Manual) change-over switches.
• 27 cm (E) above the cabinet so that the front panel can be placed here during service.
• 10 cm (F) below the cabinet to enable air cooling.
5. Align the box horizontally. Hold the cabinet base against the wall and mark out the 4 screws.
6. Drill 4 8 mm holes.
7. Mount the cabinet using the enclosed wall dowels and screws.
8. Place one or more washer(s) under one of the cabinet feet if the wall is not level and the cabinet base
moves.

DOL 31 Speed Controller
10 Technical User Guide
4 Installation guide
Installation, servicing and troubleshooting of all electrical equipment must be carried out by quali-
fied 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 required for each motor and power supply to facilitate
voltage-free work on the electrical equipment. The power supply isolator is not included.
4.1 Cabling
Cables are led through plastic glands in the bottom section. It is recommended to use armored cable in loca-
tions where there is a risk of rodent attacks.
4.2 Dismantling the AUT-0-MAN switch in DOL 31 16 A
Disconnect the supply voltage.
Dismantle the AUT-0-MAN switch in order to gain access to the screw
terminals.
Turn the lock in the opposite direction of the arrow.
Set the switch to 0.
Dismantle the AUT-0-MAN switch by means of a screwdriver. Push the
switch housing to the left.
Lift out the switch.
Connect power supply in X13-X15.
Connect output in X16-X18.
Set the switch to 0.
Push the AUT-0-MAN switch to the right.
Turn the lock. The arrow indicates the direction.