Control circuit
36
INSTALLATION AND WIRING
Output signal
Terminal FM is provided in the FM-type inverter.
Terminal CA is provided in the CA-type inverter.
Type
Terminal
symbol
Terminal name Terminal function description Rated specification
Relay
A1,
B1,
C1
Relay output 1 (fault
output)
1 changeover contact output that indicates that an inverter's
protective function has been activated and the outputs are
stopped.
Fault: discontinuity across B and C (continuity across A and C),
Normal: continuity across Band C (discontinuity across A and C)
Contact capacity 230
VAC 0.3 A (power factor
= 0.4)
30 VDC 0.3 A
A2,
B2,
C2
Relay output 2 1 changeover contact output
Open collector
RUN Inverter running
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.
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).
SU Up to frequency
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.
Fault code (4 bits)
output.
(Refer to the FR-A800
Instruction Manual
(Detailed).)
OL Overload warning
Switched to LOW when stall prevention
is activated by the stall prevention
function. Switched to HIGH when stall
prevention is canceled.
IPF
Instantaneous power
failure
Switched to LOW when an
instantaneous power failure occurs or
when the undervoltage protection is
activated.
FU Frequency detection
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.
SE
Open collector output
common
Common terminal for terminals RUN, SU, OL, IPF, FU —
Pulse
FM
For meter
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.
(Refer to the FR-A800 Instruction
Manual (Detailed).)
Output item:
Output frequency (initial
setting)
Permissible load current
2 mA
For full scale
1440 pulses/s
NPN open
collector output
This terminal can be
used for open collector
outputs by setting
Pr.291.
Maximum output pulse
50k pulses/s
Permissible load current
80 mA
Analog
AM Analog voltage output
Output item:
Output frequency (initial
setting)
Output signal 0 to 10
VDC, Permissible load
current 1 mA
(load impedance 10 k or
more) Resolution 8 bits
CA
Analog current output
Load impedance 200 to
450
Output signal 0 to 20
mADC
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