Wiring Protection; Protecting The Vfd And Input Power Cable In Case Of Short Circuit - INVT Goodrive350-19 Series Operation Manual

Goodrive350-19 series VFD for crane
Terminal
Independent PT100 and PT1000 inputs: PT1+ connects to PT100 resistor, while
PT1+
PT2+ connects to PT1000 resistor.
•
•
PT2+
•
•
PT- Reference zero potential of PT100/PT1000
RO3A
RO3 outputs. RO3A: NO; RO3C: common
Contact capacity: 3A/AC250V, 1A/DC30V
RO3C
RO4A
RO4 outputs. RO4A: NO; RO4C: common
RO4C Contact capacity: 3A/AC250V, 1A/DC30V
Used to provide input digital working power from the external to the internal
PW
Voltage range: 24(-20%)–48VDC(+10%), 24(-10%)–48VAC(+10%) voltage input
+24V User power supply provided by the VFD. Max. output current: 200mA
COM +24V common terminal
Digital input 5 •
S5
S6 Digital input 6
S7 Digital input 7
S8 Digital input 8
Note:

You can install optional expansion cards for 1.5–5.5kW VFD models and you are recommended
to install them at slot 2.

I/O expansion card 2 has been installed at slot 3 for 7.5kW and higher VFD models as standard
configuration.

4.5 Wiring protection

4.5.1 Protecting the VFD and input power cable in case of short circuit

The VFD and input power cable can be protected in case of short circuit, avoiding thermal overload.
Carry out protective measures according to the following figure.
Resolution: 1° C
Range: -20° C–150° C
Detection precision: 3° C
Supporting offline protection
Internal impedance: 6.6kΩ
•
Supporting the voltage input of external power
(-20%)24–48VDC(+10%) and (-10%)24–48VAC(+10%)
•
Supporting the internal power 24V
•
Bi-direction input terminal, supporting both NPN and PNP
•
Max. input frequency: 1kHz
•
All are programmable digital input terminals, the functions of
which can be set through function codes
It supports PTC input, while PTC acts at 2.5kΩ, and it supports the
input of only dry contacts sharing COM.
Description
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Installation guidelines