Wiring
18
4.2.7 Additional information on Sakura V1
Connection
V1 Definition
V1 fieldbus is a voltage mode digital communication using up to ±30 V
DC
, and requires the
following three electrical connections between each of the devices on the bus:
V1 Cable specification
Terminal V1 Meaning Remarks
13 S Capacitive Shield
Connector: Phoenix FKIC 2,5/4-St-5,08
12 Not connected
11 A
10 B
)
Ground
Must be independently connected directly to a
primary grounding point using 4 mm
2
cable.
Signal Purpose Remarks
A Data signal (-) These signals must be connected using a balanced twisted pair cable.
B Data signal (+)
Shield EMC protection Copper braided or combined foil and braided shielding
Cable capacitance ≤ 50 nF/m
Core cross-section ≥ 0.9 mm
2
, corresponds to AWG 17, multi-strand cable is preferred
Cable type twisted pair
Cable resistance ≤ 30 Ω/km
Shielding Copper braided shielding or combined foil and braided shielding
Insulation ≥ 60 V
DC
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