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Summary of Contents for OJ Electronics OJ-VCH-HMI3
- Page 1 INSTRUCTIONS OJ-VCH-HMI3 OJ Drives ® A DRIVES PROGRAMME DEDICATED TO VENTILATION SOLUTIONS...
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Page 2: Table Of Contents
3.6.1 OJ-VCH-HMI3 ........ -
Page 3: Product Presentation
Older systems often consist of a large fan that is either on/off or variable-controlled. With the OJ-VCH-HMI3, you now have the opportunity to offer renovation of existing plants with a downscaling of DVs, which are now reduced in size and included in a cascade solution. -
Page 4: Ensuring Safety Before Installation
The OJ-VCH-HMI3 is designed to be used in a system comprising a series of daisy-chained devices, and is not to be used as a stand-alone product. The OJ-VCH-HMI3 can also be used as an OJ-DV- HMI35T operation; for further information see 3.6 Modbus ID. -
Page 5: Installation
Step by step – start 1. Start: Choose between the 4 application configurations; see 3.2 Application. 2. Wiring: Use the correct cable for cable connection between OJ-VCH-HMI3 and all connected devices; see 3.4 Wring. 3. Mount the OJ-VCH-HMI3 correctly; see 3.3 Mounting Danger 4. -
Page 6: Mounting
Alarm Relay) Scale Start/Stop Mounting OJ-VCH-HMI3 can be fitted onto a flat surface using a screw or magnets; see below for correct mounting. Figure 6 3.3.1 Fitting onto a flat surface using a screw. The rear of the OJ-VCH-HMI3 unit features a keyhole- Fig. -
Page 7: Wiring
INSTRUCTIONS OJ-VCH-HMI3 Wiring All cables and conductors used in the connection between OJ-VCH-HMI3 and the OJ-DV must comply with local and national rules and regulations 3.4.1 Cable requirements A 6-core, unshielded, 30 AWG/0.066 mm² telecommunications cable can be used as a Modbus cable. -
Page 8: Pressure/Airflow
BR1040A06a The resistance has to be 1.2 to 1.4 times higher than © 2019 OJ Electronics A/S the potentiometer – e.g. with a resistance of 12 kΩ, the potentiometer has to be 10 kΩ. -
Page 9: Connection Of Digital Input Signal
Caution Figure 17 Fig. 17 To power up the DV, refer to the OJ-DV instructions. Power to the OJ-VCH-HMI3 and the PTH comes from the RJ12 Modbus cable when connected to terminal “A” in the OJ-DV. (See fig. 17) Alternatively, the OJ-VHC-HMI must be provided with an external 24 V DC power supply connected to screw terminals 3 (+) and 4 (GND). -
Page 10: Modbus Id
Before connecting the DVs in series with the OJ-VCH-HMI3, the DVs must have their own unique Modbus ID. The default DV address is 54 and can be changed by using the OJ-VCH-HMI3, OJ-DV- HMI-35T or OJ-DV-PC-Tool. All DVs must have their own unique ID address. -
Page 11: Home Screen
• This shows the number of connected devices and their connection status. 4.3.2 User settings This screen provides the user with the following possibilities. • Language Change language to English or German • Information Readout of HMI version (x) © 2020 OJ Electronics A/S... -
Page 12: System Settings (Password-Protected)
• Warning Note: For detailed information regarding alarms and warnings, refer to the OJ-DV instructions. 4.3.6 Protective cover The OJ-VCH-HMI3 is supplied with a silicon protective cover to protect it against knocks, oil and dirt. © 2020 OJ Electronics A/S... -
Page 13: Service And Maintenance
Relative humidity..................0 – 95% rh, non-condensing IP sealing grade ..........................IP21 Maintenance The OJ-VCH-HMI3 touch panel contains no parts that require service or maintenance. Contact your supplier in the case of problems. Disposal and environmental protection Help to protect the environment by disposing of the packaging and redundant products in an environmentally responsible manner. - Page 14 OJ Electronics A/S Stenager 13B • DK-6400 Sønderborg Tel. : +45 73 12 13 14 • Fax +45 73 12 13 13 oj@ojelectronics.com • www.ojelectronics.com The trademark is a registered trademark belonging to OJ Electronics A/S · © 2020 OJ Electronics A/S...
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