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DOL 38-2 Frequency
Converter
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/1159
604277 • 2022-07-01
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Table of Contents
Related Manuals for Skov DOL 38-2
Summary of Contents for Skov DOL 38-2
- Page 1 DOL 38-2 Frequency Converter 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/1159...
- Page 3 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.
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Page 4: Table Of Contents
DOL 38-2 with fan ........................ 18 4.7.1.1 Cable plan.......................... 18 4.7.1.2 Circuit diagram........................... 19 4.7.2 DOL 38-2 with DA 74CV and DA 600 fan .................. 20 4.7.2.1 Cable plan.......................... 20 4.7.2.2 Terminals in DA 74CV ....................... 20 4.7.2.3 Circuit diagram........................... 21 4.7.2.4... -
Page 5: Product Description
DOL 38-2 Frequency Converter 1 Product description DOL 38-2 is a sturdy frequency converter for three-phase fans. DOL 38-2 is controlled by a 10--0 V signal from a climate controller. Technical User Guide... -
Page 6: Product Survey
DOL 38-2 Frequency Converter 2 Product survey 110451 DOL 38-2 VFD 4.5A 230V1 50/60Hz Frequency converter is used for regulating three-phase fans. The frequency converter is controlled via a 10-0 V signal. The distance between the frequency converter and fan should not exceed 5 m (shielded cable). -
Page 7: Mounting Guide
DOL 38-2 Frequency Converter 3 Mounting guide 3.1 Recommended tools A list of the recommended tools for mounting purposes can be seen below. Item Description Cordless drill Screwdriver bits Drill kit Multimeter Utility knife Cable clip pliers Side cutter Pointed pliers... -
Page 8: Position Of Motor Controller/Frequency Converter
DOL 38-2 Frequency Converter 3.2 Position of motor controller/frequency converter Motor controller/frequency converter must not be built-in or covered and must be mounted on a solid, level sur- face. In order to uphold protection classifications, access and cooling, the motor controller/frequency converter must be positioned as shown in section Mounting distances for the motor controller/frequency converter [} 8]. -
Page 9: Position Of Motor Controller/Frequency Converter
DOL 38-2 Frequency Converter 3.4 Position of motor controller/frequency converter The motor controller/frequency converter is positioned so that the ambient temperature is between ÷ 40 °C and + 50 °C. Mount the motor controller/frequency converter as close to the fan as possible. -
Page 10: Installation Guide
4.1.3 Overvoltage protection SKOV A/S equipment are protected for high level of surge transient, but in some cases, specially in areas with frequent lightning strikes and power outage, additional protection is necessary. To reduce the risk of damaging the electronic equipment by large surge overvoltage, it is therefore recommended, always to install Surge Pro- tection Devices (SPD) in the mains supply. -
Page 11: Cabling In The Exhaust Unit
DOL 38-2 Frequency Converter 4.1.4 Cabling in the exhaust unit Drill a hole in the exhaust unit duct for the fan cable and pull it along a support to the same side as the motor con- troller/frequency converter. 4.1.5 Cabling into the motor controller/frequency converter... -
Page 12: Connection In The Lpc Motor Controller/Frequency Converter
DOL 38-2 Frequency Converter 4.2 Connection in the LPC motor controller/frequency converter Motor connection terminals (U, V, W, PE) Connection terminals for braking resistor (not used) Connector for optional module Terminal block for programming interface RJ12 programming connector (2 x slave / 1 x master) -
Page 13: Terminals For Power Supply
DOL 38-2 Frequency Converter 4.2.1 Terminals for power supply Supply 1x230 V. 4.2.2 Terminals for supply of the fan motor Remember to strip the cable so that the protective shield from the fan can be connected to the motor controller during mounting under the rail. -
Page 14: Signal Terminals
DOL 38-2 Frequency Converter 4.2.3 Signal terminals Not in use Not in use Ground Max. 4 mm2 10 V output supply (max. 100 mA) Signal from climate computer or potentiometer Max. 2.5 mm2 Ground (1) 10-0 V = GND (Jumper between terminal 7 and GND) -
Page 15: Led Indication On The Motor Controller/Frequency Converter
DOL 38-2 Frequency Converter 4.3 LED indication on the motor controller/frequency converter The motor controller/frequency converter is equipped with a two-color LED for indication of different operating modes. LED is located on the underside next to the cable glands. • Constantly green when mains voltage is connected. -
Page 16: Adjusting The Jumper And Connecting The Shutter
DOL 38-2 Frequency Converter Alarm overview External 24V DC supply over- loaded Supply voltage too high 4.5 Adjusting the jumper and connecting the shutter Set the jumper on the PCB to give actuator the desired function. LED indication OK = slow flashing... -
Page 17: General Information About Circuit Diagrams
DOL 38-2 Frequency Converter 4.6 General information about circuit diagrams Symbols are in accordance with the IEC/EN 60617 standard. The classification of the symbols ("letter codes") on the symbols is in accordance with the IEC/EN 81346-2 stan- dard. Reference designations are in accordance with IEC/EN 81346-1:2001 structuring principles and reference des- ignations. -
Page 18: Cable Plans And Circuit Diagrams
DOL 38-2 Frequency Converter 4.7 Cable plans and circuit diagrams 4.7.1 DOL 38-2 with fan 4.7.1.1 Cable plan Technical User Guide... -
Page 19: Circuit Diagram
DOL 38-2 Frequency Converter 4.7.1.2 Circuit diagram Example of terminal number For correct connection see the setup menu Show connection in the controller Frequency converter Technical User Guide... -
Page 20: Dol 38-2 With Da 74Cv And Da 600 Fan
DOL 38-2 Frequency Converter 4.7.2 DOL 38-2 with DA 74CV and DA 600 fan 4.7.2.1 Cable plan 4.7.2.2 Terminals in DA 74CV Technical User Guide... -
Page 21: Circuit Diagram
DOL 38-2 Frequency Converter 4.7.2.3 Circuit diagram Power supply from emergency opening V0 = Q1 terminal in controller. Power supply from emergency opening 24V-1 = Q2, Q3, Q4 and Q5 terminal in controller. Power supply from emergency opening 24V-12 = F6 terminal in emergency opening. -
Page 22: Circuit Diagram - Thermal Cutout
DOL 38-2 Frequency Converter 4.7.2.4 Circuit diagram - thermal cutout Power supply from emergency opening V0 = Q1 terminal in controller. Power supply from emergency opening 24V-1 = Q2, Q3, Q4 and Q5 terminal in controller. Power supply from emergency opening 24V-12 = F6 terminal in emergency opening. -
Page 23: Dol 38-2 And Da 600 Fan With Reverse
DOL 38-2 Frequency Converter 4.7.3 DOL 38-2 and DA 600 fan with reverse 4.7.3.1 Cable plan Technical User Guide... -
Page 24: Circuit Diagram
DOL 38-2 Frequency Converter 4.7.3.2 Circuit diagram Power supply from emergency opening V0 = Q1 terminal in controller. Power supply from emergency opening 24V-1 = Q2, Q3, Q4 and Q5 terminal in controller. Power supply from emergency opening 24V-12 = F6 terminal in emergency opening. -
Page 25: Dol 38-2 And Da 600 Fan With Alarm
DOL 38-2 Frequency Converter 4.7.4 DOL 38-2 and DA 600 fan with alarm 4.7.4.1 Cable plan Technical User Guide... -
Page 26: Circuit Diagram
DOL 38-2 Frequency Converter 4.7.4.2 Circuit diagram Power supply from emergency opening V0 = Q1 terminal in controller. Power supply from emergency opening 24V-1 = Q2, Q3, Q4 and Q5 terminal in controller. Power supply from emergency opening 24V-12 = F6 terminal in emergency opening. -
Page 27: Maintenance Instructions
When washing the inside of the ducts, fan blades must stand still. Remember that fans do not stand high-pressure cleaning. If the inside of the duct needs to be cleaned extra thoroughly SKOV A/S recommends washing from above. When washing the fan, the fan must run around. -
Page 28: Troubleshooting Guide
DOL 38-2 Frequency Converter 6 Troubleshooting guide Remember to shut the fan off at the power supply isolator prior to troubleshooting. Troubleshooting shutter system LPC/motor response Status LED Error Solution Shutter touches the ventilation Remedy the damage. duct (obstructed). Flashing... - Page 29 DOL 38-2 Frequency Converter Troubleshooting frequency converter Fault symptom Status LED Error Solution Supply voltage too high. Measure the supply voltage. Power consumption of the mo- Check for motor errors. tor too high. Phase errors; one or more Measure the voltage between the Stopped after 5 restart phases interrupted (L1, L2, L3).
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Page 30: Technical Data
0.99 CosPhi [Φ] 20 to 100 % / 0 - 8 V Regulation ability Built-in current limiter in DOL 38-2. Motor protection Use fuse in front of DOL 38-2. Thermal cutout (PTO) Interface Inputs A1: Analog fan speed V DC 10 –... -
Page 31: Dimensioned Sketch
DOL 38-2 Frequency Converter DOL 38-2 375x660x660 Dimensions when packed HxWxD 2100 Weight 7.1 Dimensioned sketch Technical User Guide... - Page 32 SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev Tel. +45 72 17 55 55 • www.skov.com • E-mail: skov@skov.dk...
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