Mitsubishi Electric 700 Series, Instruction Manual

Page: 40 / 416

29
Control circuit specifications
2
WIRING
(2) Output signals
(3) Communication
Ty
p
e Terminal
Symbol
Terminal
Name
Description
Rated
Specifications
Refer to
Re
la
y
A1,
B1,
C1
Relay output 1
(Fault output)
1 changeover contact output indicates that the inverter’s
protective function has activated and the output stopped.
Fault: No conduction across B and C (Across A and C Continuity),
Normal: Across B and C Continuity (No conduction across A and C)
Contact capacity:
230VAC 0.3A
(Power
factor=0.4)
30VDC 0.3A
128
A2,
B2,
C2
Relay output 2 1 changeover contact output 128
Op
e
n c
o
lle
ct
o
r
RUN
Inverter
running
Switched low when the inverter output frequency is equal to or
higher than the starting frequency (initial value 0.5Hz). Switched
high during stop or DC injection brake operation.
Permissible load
24VDC (27VDC
maximum) 0.1A
(A voltage drop is
3.4V maximum
when the signal is
ON.)
Low is when the
open collector
output transistor
is ON (conducts).
High is when the
transistor is OFF
(does not
conduct).
128
SU
Up to
frequency
Switched low when the output
frequency reaches within the range of
±10% (initial value) of the set frequency.
Switched high during acceleration/
deceleration and at a stop.
Alarm code (4bit)
output
128
OL
Overload
warning
Switched low when stall prevention is
activated by the stall prevention
function. Switched high when stall
prevention is cancelled.
128
IPF
Instantaneous
power failure
Switched low when an instantaneous
power failure and under voltage
protections are activated.
128
FU
Frequency
detection
Switched low when the inverter output
frequency is equal to or higher than the
preset detected frequency and high
when less than the preset detected
frequency.
128
SE
Open collector
output common
Common terminal for terminals RUN, SU, OL, IPF, FU -------------------- -----
A
nal
o
g
CA
Analog current
output
Select one e.g. output frequency from
monitor items. (Not output during
inverter reset.)
The output signal is proportional to the
magnitude of the corresponding
monitoring item.
To set a full-scale value for monitoring
the output frequency and the output
current, set
Pr. 56 and Pr. 158
.
(Refer to page 147)
Output item:
Output frequency
(initial setting)
Load impedance
200
Ω
to 450
Ω
Output signal 0 to
20mADC
147
AM
Analog voltage
output
Output signal 0 to
10VDC
Permissible load
current 1mA
(load impedance
10k
Ω
or more)
Resolution 8 bit
147
Ty
p
e
Terminal
Symbol
Terminal
Name
Description Refer to
RS
-4
85
—
PU
connector
With the PU connector, communication is available 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 38400bps
Overall length
: 500m (1640.42feet)
209
RS-4
8
5 t
e
rm
in
a
ls
TXD+
Inverter
transmission
terminal
With the RS-485 terminals, communication is available through RS-485.
Conforming standard
: EIA-485 (RS-485)
Transmission format : Multidrop link
Communication speed : 300 to 38400bps
Overall length
: 500m (1640.42feet)
211
TXD-
RXD+
Inverter
reception
terminal
RXD-
SG Earth (Ground)