Oden Control P220L, Руководство пользователя

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5 ELECTRIC CONNECTION
5.1. Cable connection
P30 is delivered with a standard cable of 10m and the Connection board A. Connect the free end of the cable with
the connection board using the colour codes. Note that the cable shield should be grounded at the free end of the
cable. Check that the ground wire (green/yellow) at the actuator flange is connected to the valve or equivalent
ground potential. If P30 is installed in an extreme outdoor environment the cable should be covered with a
protective hose.
For more information about electric wiring, go to Appendix.
DANGER: The cable between the actuator and the connection board must be clamped (fixed installation).
DANGER: Check that the voltage is 24 V DC, and that the wires are correctly connected to the terminal
block.
NOTE: Do not twist the cable at the P30 inlet.
5.2. Voltage drop
If a long cable is used between the power source and the connection board you need to calculate the voltage drop.
You may use either:
−
One shielded cable with six wires or
−
One cable for the power with two wires and one shielded signal cable with four wires.
The maximum power peak current for P30 is about 8 A. Use a cable which gives a voltage drop of max 2V.
A bigger drop will reduce performance and may affect the function of the electronics. When calculating the drop -
do not forget that the calculating length is twice the length of the cable.
It is possible to compensate for the drop by raising the voltage at the power source. However, be careful not to
exceed 28 V at the terminals on the connection board
The return (position) signal circuit should be loaded by about 250 ohm (max 350 ohm).
5.3. Choice of cable
Some tips concerning choice of cable between Connection board A and your power source:
1. Helukabel TRONIC-CY is a shielded UV stabilized cable of good quality for fixed installation in the
temperature range -20º - +60°.
Helukabel No.16479 has 6 wires each with 1 mm² cross-sec. Voltage drop about 3 V per 10 m.
Helukabel No.16504 has 6 wires each with 1,5 mm² cross-sec. Voltage drop about 2 V per 10 m.
2. Miltronic /Ölflex Classic 415 CP is a shielded UV stabilized cable of good quality for fixed installation in the
temperature range -20º - +60°.
Miltronic No.1314040 has 6 wires each with 1 mm² cross-sec. Voltage drop about 3 V per 10 m.
Miltronic No.1314054 has 6 wires each with 1,5 mm² cross-sec. Voltage drop about 2 V per 10 m.
For very long distance (more than 20 m) we suggest using two cables, one for power and one for signals.
1. For power the Helukabel No. 16502 has 4 wires each with 1,5 mm² cross-sec, UV stabilized and with shield.
Using two wires in parallel will reduce the drop. Voltage drops about 2 V per 10 m.
2. For power the Miltronic/ Ölflex Classic 415 CP No. 1314050 has 4 wires each with 1.5 mm² cross-sec, UV
stabilized and with shield. Using two wires in parallel will reduce the drop. Voltage drops about 2 V per 10 m.
Use reduction pins for wire with cross-sec > 1 mm² to fit to the inlets of the terminal block.