Instruction manual

19
2
INSTALLATION AND WIRING
*1: Low indicates that the open collector output transistor is on (conducts). High
indicates that the transistor is off (does not conduct).
*2: Not output during inverter resetting.
Type Sy mbo l
Termin al
Name
Description
Output signals
Contact
A, B, C Alarm output
Change-over contact output indicating that
the output has been stopped by the inverter
protective function activated. 230VAC 0.3A,
30VDC 0.3A. Alarm: discontinuity across B-
C (continuity across A-C), normal:
continuity across B-C (discontinuity across
A-C).
Output
terminal
function
selection
(Pr. 190 to
Pr. 192)
changes
terminal
functions.
Open collector
RUN
Inverter
running
Switched low when the inverter output
frequency is equal to or higher than the
starting frequency (factory set to 0.5Hz,
variable). Switched high during stop or DC
injection brake operation (*1).
Permissible load 24VDC 0.1A. (a voltage
drop is 3.4V maximum when the signal is
on)
FU
Frequency
detection
Switched low when the output frequency
has reached or exceeded the detection
frequency set as appropriate. Switched
high when the output frequency is below
the detection frequency (*1).
Permissible load 24VDC 0.1A
SE
Open collector
output common
Common to the RUN and FU terminals
Analog
AM
Analog signal
output
One selected from output
frequency, motor current
and output voltage is output
(*2). The output signal is
proportional to the
magnitude of each
monitoring item.
Factory setting of output
item:
Frequency output signal 0
to 10 VDC
Permissible load current
1mA
Communication
RS-485
 PU connector
With the operation panel connector, communication can
be made using the RS-485 protocol.
• Conforming Standard : EIA Standard RS-485
• Transmission format : Multi-drop link system
• Communication speed : Maximum 19200bps
• Overall length : 500m (1640.40 feet)
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