6.2 PG Interface Expansion Card
6-27
Chap. 6
CONTROL OPTIONS
6.2.4 Basic connection diagram
Refer to "6.1.4 Installing Built-in Options (OPC-VG1-)" before performing wiring or connection
work.
• Performing connection work in an inappropriate manner may result in electric shock, fire, or other damage.
Qualified electricians should carry out wiring. When touching electrical circuits, for example when performing
connection work after the unit has been energized, shut off the power supply's circuit breaker to prevent
electric shock.
• The smoothing capacitor remains charged even when the circuit breaker is shut off and will cause an electric
shock when touched. Verify that the inverter's charge lamp ("CHARGE") has turned off and use a tester or
other instrument to verify that the inverter's DC voltage has fallen to a safe level.
• Do not use products with damaged or missing parts. Doing so may result in bodily injury or damage.
• Inappropriate installation or removal of the product may cause damage to the product.
• Failure to set the switches on the PG interface expansion card (SW1, SW2) correctly will prevent the system
from operating properly. Read information about the settings below and be sure to set the switches correctly.
6.2.4.1 Terminal connections
The PG interface expansion card's connection terminals use a wire size of 16 to 26 AWG. When using the
connection terminals with stripped wires, strip to a length of 6 mm. When using crimp contacts, use a
rod-shaped terminal with vinyl insulation. Insert the wire so that it is held in place on the top of the
terminal block's fixture and tighten the screw to hold it in place.
Figure 6.2.11 End of Wire at the PG Interface
Expansion Card's Connection Terminal
Figure 6.2.12 Connecting a Wire to the PG
Interface Expansion Card's Terminal
6(mm)
Wiring AWG: 16-26
Tightening torque
0.22 to 0.25N
•m
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