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Control circuit
Terminal
Terminal name
symbol
RUN
Inverter running
SU
Up to frequency
OL
Overload alarm
IPF
Open collector output
FU
Frequency detection
Open collector output
SE
common
For meter
FM
NPN open
collector output
AM
Analog voltage output
CA
Analog current output
Terminal FM is provided in the FM-type inverter.
Terminal CA is provided in the CA-type inverter.
For the slave inverter, the function is not available in the initial status.
Communication
Terminal
Terminal
symbol
name
—
PU connector
Inverter
TXD+
transmission
TXD-
terminal
Inverter
RXD+
reception
RXD-
terminal
GND
Earthing
(SG)
(grounding)
USB A
—
connector
42
INSTALLATION AND WIRING
Terminal function description
Switched to LOW when the inverter output frequency is equal to or
higher than the starting frequency (initial value 0.5 Hz). Switched to
HIGH during stop or DC injection brake operation.
Switched to LOW when the output frequency
is within the set frequency range 10% (initial
value). Switched to HIGH during acceleration/
deceleration and at a stop.
Switched to LOW when stall prevention is
activated by the stall prevention function.
Switched to HIGH when stall prevention is
canceled.
No function is assigned in the initial setting.
The function can be assigned setting Pr.192.
Switched to LOW when the inverter output
frequency is equal to or higher than the preset
detection frequency, and to HIGH when it is
less than the preset detection frequency.
Common terminal for terminals RUN, SU, OL, IPF, FU
Outputs a selected monitored item (such as
output frequency) among several monitored
items. The signal is not output during an
inverter reset.
The output signal is proportional to the
magnitude of the corresponding monitoring
item.
Use Pr.55, Pr.56, and Pr.866 to set full scales
for the monitored output frequency, output
current, and torque.
With the PU connector, communication can be made through RS-485. (For connection on a 1:1 basis
only)
Conforming standard: EIA-485 (RS-485)
Transmission format: Multidrop link
Communication speed: 4800 to 115200 bps
Wiring length: 500 m
Two inverters in parallel connection have the RS-485 communication via the RS-485 terminals on each
inverter.
Total wiring length (sum of length of cables used between all inverters) per terminal: 5 m or less
A connector (receptacle)
A USB memory device enables parameter copies and the trace
function.
Fault code (4 bits)
output.
Output item:
Output frequency (initial
setting)
This terminal can be
used for open collector
outputs by setting
Pr.291.
Output item:
Output frequency (initial
setting)
Terminal function description
Rated
specification
Permissible load 24
VDC (maximum 27
VDC) 0.1 A
(The voltage drop is
2.8 V at maximum
while the signal is
ON.)
LOW is when the
open collector output
transistor is ON
(conducted).
HIGH is when the
transistor is OFF (not
conducted).
———
Permissible load
current 2 mA
For full scale
1440 pulses/s
Maximum output
pulse: 50k pulses/s
Permissible load
current: 80 mA
Output signal 0 to 10
VDC, Permissible
load current 1 mA
(load impedance
10 k or more)
resolution 8 bits
Load impedance
200 to 450
Output signal
0 to 20 mADC
Interface: Conforms to USB 1.1
(USB 2.0 full-speed compatible)
Transmission speed: 12 Mbps
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