<3. Installation and Wiring>
3-6
IM 12J05D02-01E
3.2.3 Preparation
The relay contact terminals and power supply connections are under the screening (shielding)
plate.
These should be connected first. Connect the sensor, outputs and data communication
connections last.
Follow the procedures below to open the DO402G for wiring:
1. Loosen the four frontplate screws and remove the cover.
2. Use the rubber knob in the lower right hand corner and swing open the display board to the
left.
3. The upper terminal strip is now visible.
4. Remove the screen (shield) plate covering the lower terminal strip.
5. Connect the power supply and contact outputs. Use the three glands at the back for these
cables.
6. Replace the screen (shield) plate over the lower terminals.
WARNING
Always replace the screen plate over the power and contact outputs for safety and to avoid
interference.
7. Connect the analog output(s), the sensor input, the contact input and, if necessary, the RS-
485 serial bus.
8. Use the front three glands for analog output, sensor input, contact input and communication
cabling (see figure 3.7).
9. Close the display board and switch on the power. Commission the instrument as required or
use the default settings.
10. Replace the cover and secure frontplate with the four screws.
Tighten four frontplate screws to 1.5 N·m torque.
CAUTION
For wiring, use cables with a heat resistance of at least 70°C.
CAUTION
Tighten the cable glands to 1.5 N•m torque. Torque less than 1.5 N•m cannot maintain the IP65
protection level.
9th Edition: Aug. 05, 2015-00
Содержание EXA DO402G
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