User`s guide

60 Adept Cobra PLC600/PLC800 Robot User’s Guide, Rev C
NOTE: The power requirements for the user-supplied power supply will
vary depending on the configuration of the PLC Server and connected
devices.
24 VDC Power Cabling
In order to maintain compliance with EN standards, DC power must be delivered over a
shielded cable, with the shield connected to the return conductors at both ends of the
cable as shown in Figure 4-4. Conductors should be 1.5 mm
2
- 1.85 mm
2
(16 to 14 AWG) in
size. The maximum length for the 24 VDC cable is 10 meters.
Daisy-Chaining Power
The PLC Server is equipped with two DC power connectors. These connectors allow the
daisy-chaining of power from one PLC server to another. When daisy-chaining power, the
power supply circuit must be limited to the lesser of 8 Amps or the amperage rating of the
cabling. This can be done with a circuit breaker or a fuse. The DC power can be applied to
either the XDC1 or XDC2 connector.
Installing 24 VDC Connectors
Use the Adept-supplied connectors to connect the customer-supplied 24 VDC power
supply to the PLC Server. The connectors are Weidmuller #169042.
1. Locate two 24 VDC connectors that are shipped with the PLC Server. See
Figure 4-8 on page 61.
2. Use 14 or 16 gauge wires to connect the 24 VDC power supply to the PLC Server.
3. Strip 7 mm of insulation from the end of the wire that connects to the positive
output of the 24 VDC supply.
4. Insert a small flat-blade screwdriver (2.5 mm) into the top opening on the
right-hand (positive) side of the connector. Push the blade in until the clamp in
the lower opening folds back.
Circuit Protection Not more than 8A (below the
amperage rating of the cable used).
Power Cabling 1.5 - 1.85 mm2 (16-14 AWG),
maximum length 10 meters
Shield Termination Braided shield connected to “-”
terminal at the appropriate XDC
connector.
CAUTION: Use only one 24 VDC power supply per circuit.
Failure to do this could result in damage to the equipment.
Table 4-10. Specifications for 24 VDC User-Supplied Power Supply