Hardware Manual

(John Hannent) #1

Saia-Burgess Controls AG


Hardware Manual PCD 1 / PCD 2 Series│Document 26 / 737│Edition EN 15│2008-07-22


Communication interfaces

4


MP-Bus with PCD2.T500

Total   power   consumption of  MFT2    actuators   [W]

1

10

100

1000

10000

0 10 20 30 40 50 60 70 80 90 1 00 [W]

0.75 mm1.5 mm 22 1.0 mm2.5 mm^22

Kabellänge [m]

Cable length vs true watts applies to DC supply
(minimum supply voltage 24.0 VDC)

The following can be read from the family of curves:


  • Cable with conductor 0.75 mm² gives: Cable length 60 m

  • Cable with conductor 1.0 mm² gives: Cable length 80 m

  • Cable with conductor 1.5 mm² gives: Cable length 115 m

  • Cable with conductor 2.5 mm² gives: Cable length 200 m


4.10.10 Maximum line length for 24 VAC supply (in situ)


6 4/5 1 2 5 1 2 5 1 2 5

Masse
MP

PCD2.T500

Maximum line length for 24 VDC supply
24 VAC

Drive
1

Drive
2

Drive
8

24 VAC 24 VAC

If the actuators are supplied locally with 24 VAC via a separate transformer, line
lengths can be much increased. Regardless of the power ratings for the actuators
connected, the line lengths will be according to the following table.

Conductor Ø L = max. line length
0.75 mm² 800 m
1.0 mm² 800 m
1.5 mm² 800 m
2.5 mm² 800 m
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