r
(-
-.I
3. If magnetic contactor (MC) is not inserted on the inverter primary
side and a power failure occurs for a short time (instantaneous
power failure) ,
the inverter will restart automatically at the same
time as the power source is restored.
If it is likbly that this automatic restart may cause damage to
the machine or persinnel, connect .(MC> so that restart is possible
only after’ safety is verified.
For a better understanding, refer to the following diagrams and
descriptions:
Para. 4.3 “Wiring diagram”
Para. 8.2 “Terminals for wiring”
Para: 8.1 “Block diagram”
- CAUTION FOR WIRING OF PERIPHERAL DEVICES
When MC, NFB and other peripheral devices are being connected to the
inverter, cover the inverter to prevent wire chips, screws and other foreign
matter from entering into the inverter through slits and other openings of
the inverter.
(21 Connection of discharge resistor for increased braking (regenerative brake
resistor unit ****** option)
A built-in discharge resistor is been connected to terminals P and PR
-internally, .as standard. ’
However when braking operation is particularly frequent and may exceed
the thermal capacity of the built-in resistor, replace the built-in discharge
resistor with optional discharge resistor unit.
Apply this option with care, due to increased heat losses which have to
be dissipated.
- 9.’
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