6 Connection
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14
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6.2 Connecting the power supply
The controller’s power supply is connected to the TB1 terminals. In addition to the power supply
terminals, TB1 has a frame ground (FG) terminal to prevent malfunctions caused by external noise.
The power supply provides a voltage of 24 VDC ±5% with current consumption of 0.45 A or less. The
current consumption level includes the current supplied to the operational unit.
Use insulated round crimp terminals for power cable and grounding wires.
Note
The power supply should be designed to provide ample capacity. Insufficient power
capacity may cause an error in the controller operation.
1.
Remove the terminal cover from TB1.
2.
Remove the positive and negative terminal
screws, then connect the 24 VDC power
cable.
Verify that the connection has the proper polarity.
Note
For the power cable, use the cable of
AWG20 (0.5 mm
2
) or more in diameter. Any
cable with a smaller diameter may cause
heat generation.
3.
Tighten terminal screws at a tightening torque
of 0.5 N·m (71 oz-in).
24 VDC/+ terminal
24 VDC/- terminal
FG terminal
4.
Remove the FG terminal screws and connect
the grounding wire.
Note
For the grounding wire, use the cable of
AWG18 (0.75 mm
2
) or more in diameter.
Any cable with a smaller diameter may
cause heat generation.
5.
Tighten terminal screws at a tightening torque
of 0.5 N·m (71 oz-in).
6.
Secure the grounding wire connected to the
FG terminal to the ground point, using screws
with a crow washer.
The above grounding wire should be grounded at
one point together with the grounding wire
connected to the driver’s protective earth terminal.
Grounded at
one point
Controller
Driver
FG
7.
Place the terminal cover on TB1.
TB1 signals
Symbol Signal
Description
+24 V power Input terminal of the power supply
GND
Ground of the power supply
FG Frame
ground
Содержание EMP400 Series
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