Mitsubishi Electric FR-A700 Technical Manual page 37

Terminal Terminal
Symbol Name
Inverter
MRS output stop
*1
terminal
Input resistance : 4.7k
Voltage when contacts are open :
A700
21 to 27VDC
E700
21 to 26VDC
When contacts are short-
circuited : 4 to 6mADC
Isolated by photocoupler
Controls by open collector
output or no voltage contact
signal
Reset
RES *1
terminal
Input resistance : 4.7k
Terminal 4
Voltage when contacts are open :
input
21 to 27VDC
selection
When contacts are short-
terminal
circuited : 4 to 6mADC
(current
Isolated by photocoupler
input
Controls by open collector
selection)
AU output or no voltage contact
*1
signal
Specification of PTC thermistor
resistance
PTC input
Normal: 0
terminal
Boundary: 500
Overheat: 4.7k
Input resistance : 4.7k
Automatic
Voltage when contacts are open :
restart after
21 to 27VDC
instantaneo
When contacts are short-
us power
CS *1
circuited : 4 to 6mADC
failure
Isolated by photocoupler
selection
Controls by open collector
terminal
output or no voltage contact
signal
Contact
input
common
(sink) (initial
setting)
External
SD transistor
common
(source)
24VDC
power
supply
common
Rating, etc. Application Explanation
Shuts off the inverter output and
coasts the motor to a stop. When
stopping the motor with a mechanical
brake etc., this terminal is used to
shut off the inverter output. Before
applying the brake, turn ON MRS
signal for 20ms or longer.
Turning OFF MRS signal causes the
inverter to operate as usual. Hence,
while the mechanical brake is
operating, keep MRS signal turned
ON or turn the start signal STF (STR)
OFF to set the inverter in a non-
F700
output status.
Designed to reset the inverter trip by
the protective circuit operated when a
fault occurs. Immediately sets each
portion of the control circuit to the
initial state and shuts off the inverter
output at the same time. To provide
this reset input, turn RES signal ON
for 0.1s or longer, then turn OFF.
Inverter recovers about 1s after reset
is cancelled.
Initial setting is for reset always. By
setting [Pr. 75], reset can be set to
enabled only at fault occurrence.
Note that the initial reset at power-ON
is made automatically in the inverter,
requiring 1s after power-ON.
During reset, the inverter does not
provide output.
Only when AU signal is turned ON,
the 4 to 20mADC frequency setting
signal input to across terminals 4-5
can be used to perform operation.
When AU signal is ON, the input
signal across terminals 2-5 (voltage
input) is invalid.
The terminal is overridden by the
multi-speed terminal.
Terminal AU is used as PTC input
terminal (thermal protection of the
to 500
motor).
When using it as PTC input terminal,
to 4k
set the AU/PTC switch to PTC.
or higher
Turn ON CS signal to enable
automatic restart control when power
is restored from an instantaneous
power failure. Note that restart setting
is necessary for this operation. In the
initial setting, a restart is disabled.
Common terminal for contact input
terminal (sink logic) and terminal FM.
Isolated from terminals 5 and SE.
When connecting the transistor
output (open collector output), such
as a programmable controller, when
— source logic is selected, connect the
external power supply common for
transistor output to this terminal to
prevent a malfunction caused by
undesirable currents.
Common output terminal for 24VDC
0.1A power supply (PC terminal).
Isolated from terminals 5 and SE.
30
SPECIFICATIONS
Available Inverters
A700 F700 E700 D700
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Refer
to
Page
56
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58
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