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Epson RC620 Manual Page 28

Robot controller option, fieldbus i/o.
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Safety and installation - 218 pages
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2. Installation
If the location of the external power supply is changed as shown in the figure below, the
power supply can be used because the current capacity on the left side of the power supply
tap is 5 A and 6 A on the right side.
Terminating
Resistor
If the current capacity consumed in the network exceeds the restriction of cable current
capacity, it is possible to install more than one power supply in the network. If you
attempt to install two or more power supplies, take necessary measures (pulling out a fuse
on the power supply tap, etc.) to avoid conflicts between power outputs from multiple
power supplies.
Terminating
Resistor
Following figure illustrates a sample wiring. An OMRON power supply tap is used in the
example.
 Carefully connect the wires. Incorrect wiring may cause node malfunction and
severe damage to the entire DeviceNet network.
CAUTION
18
Power Supply Tap
2A
External
Power Supply
1A
24 V DC
1A
1A
Power Supply Tap
2A
External
1A
Power Supply
1A
1A
24 V DC
Trunk Line
Ground the
network at
only one point.
Ground 100 Ω or less.
If you cannot ground the network with 100 Ω or less,
do not connect V- and FG wires.
Trunk Line
Terminating
Resistor
2A
2A
2A
Trunk Line
2A
2A
2A
Pull out
the fuse.
RC620 Option Fieldbus I/O Rev.8
Power Supply Tap
Terminating
Resistor
2A
1A
1A
1A
V+
L
S
H
V-
Ground 100 Ω or less.
V+
CAN L
Shield
CAN H
V-

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