Mitsubishi Electric FR-A720-0.4K Instruction Manual page 40

Fr-a700 series
Hide thumbs Also See for FR-A720-0.4K:
Table of Contents

Advertisement

Control circuit specifications
Terminal
Terminal
Symbol
Name
Inverter
RUN
running
Up to
SU
frequency
OL
Overload alarm
Instantaneous
IPF
power failure
Frequency
FU
detection
Open collector
SE
output common
For meter
FM
NPN open
collector output
Analog signal
AM
output
*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 reset.
(3) Communication
Terminal
Terminal
Symbol
Name
PU
----- ------- ------ --
connector
Inverter
TXD+
transmission
TXD-
terminal
Inverter
RXD+
reception
RXD-
terminal
SG
Earth (Ground)
USB
----- ------- ------ --
connector
30
Description
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.
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.
*1
Switched low when stall prevention is
activated by the stall prevention
function. Switched high when stall
prevention is cancelled.
*1
Switched low when an instantaneous
power failure and under voltage
protections are activated.
*1
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.
*1
Common terminal for terminals RUN, SU, OL, IPF, FU
Select one e.g. output frequency from
monitor items.
*2
The output signal is proportional to the
magnitude of the corresponding
monitoring item.
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
. Communication speed : 4800 to 38400bps
. Overall length
: 500m
With the RS-485 terminals, communication can be made through RS-485.
Conforming standard
: EIA-485(RS-485)
Transmission format
: Multidrop link
Communication speed : 300 to 38400bps
Overall length
: 500m
The FR-Configurator can be performed by connecting the inverter to the personnel
computer through USB.
Interfase:Conforms to USB1.1
Transmission speed:12Mbps
Connector:USB B connector (B receptacle)
*1
Alarm code (4bit)
output (Refer to page
262)
Output item:
Output frequency
(initial setting)
Signals can be output
from the open
collector terminals by
setting Pr. 291.
Output item:
Output frequency
(initial setting)
Description
Rated
Refer to
Specifications
page
228
228
Permissible load
24VDC 0.1A
(A voltage drop is
228
2.8V maximum
when the signal is
on.)
228
228
------ ------ ------ --
---- -
Permissible load
current 2mA
242
1440pulses/s at
60Hz
Maximum output
pulse: 50kpulses/s
358
Permissible load
current : 80mA
Output signal 0 to
10VDC
Permissible load
current 1mA
242
(load impedance
10kΩ or more)
Resolution 8 bit
Refer to
page
309
311
340

Advertisement

Table of Contents
loading

Table of Contents