2-21
2.3.8 Switching of SINK/SOURCE (jumper switch)
Before changing the jumper switch, wait for at least five minutes after the power has been turned
off, then check that the DC link circuit voltage between the terminals P (+) and N (-) does not
exceed the safety voltage (+25 VDC) using a multimeter.
An electric shock may result if this warning is not heeded as there may be some residual
electric charge in the DC bus capacitor even after the power has been turned off.
Figure 2.19 Switching of SINK/SOURCE (Jumper Switch)
To switch the sink/source of the digital
input signal, change the position of the
jumper switch using a pair of long-nose
pliers, as shown in Figure 2.19.
At the factory setting, the jumper switch
is positioned at SOURCE for the EU
version except three-phase 200
model and at SINK for the Asian and
Japanese versions.
2.3.9 Installing an RS485 communications card (option)
Figure 2.20 Installing an RS485 Communications Card
(Option)
When an optional RS485
Communications Card is to be used,
install it before putting back the control
circuit TB cover. Align the card with the
latch on the inverter and attach the card
to the connector that is located above
terminals [30A], [30B] and [30C].
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