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4
ELECTRICAL CONNECTIONS
52
RM640
www.honeywellprocess.com
34-VF-25-131 iss.1 GLO Feb 2019 US
4.4 Electrical installation: output options with an M12 male connector
4.5 Electrical connection for current output
4.5.1 Non-Ex devices
Figure 4-5: Terminals for electrical installation: 4-pin male M12 connector
1
Pin 1: current
2
Pin 2: not connected
3
Pin 3: current output -
4
Pin 4: not connected
5
Grounding terminal (external thread of the connector)
6
Location of the external grounding terminal (at the bottom of the converter)
INFORMATION!
Electrical power to the output terminal energizes the device. The output terminal is also used for
HART
®
communication.
Figure 4-6: Electrical connections for non-Ex devices
1
Power supply
2
Resistor for HART
®
communication (typically 250 ohms)
3
Optional connection to the grounding terminal
4
Output: 12...30 VDC for an output of 21.5 mA at the terminal
5
Device
Summary of Contents for RM640
Page 4: ...4 www honeywellprocess com 34 VF 25 131 iss 1 GLO Feb 2019 US ABOUT THIS DOCUMENT RM640 ...
Page 20: ...1 SAFETY INSTRUCTIONS 20 RM640 www honeywellprocess com 34 VF 25 131 iss 1 GLO Feb 2019 US ...
Page 56: ...4 ELECTRICAL CONNECTIONS 56 RM640 www honeywellprocess com 34 VF 25 131 iss 1 GLO Feb 2019 US ...
Page 120: ...6 OPERATION 120 RM640 www honeywellprocess com 34 VF 25 131 iss 1 GLO Feb 2019 US ...
Page 182: ...10 APPENDIX 182 RM640 www honeywellprocess com 34 VF 25 131 iss 1 GLO Feb 2019 US ...
Page 183: ...APPENDIX 10 183 RM640 www honeywellprocess com 34 VF 25 131 iss 1 GLO Feb 2019 US ...