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Table 2-3-2 Functions of control circuit terminals
Classifi-
cation
Termi-
nal
symbol
Terminal name Detailed specifications Remarks
13 Power supply for
variable resistor
Used as power supply for frequency setting
device (POT: 1 to 5 kΩ). (+10Vdc 10mA
max.)
12 Frequency setting
voltage input
0 to +10Vdc /0 to 100%,0 to +5Vdc /0 to
100%
(Input impedance : 22 kΩ)
C1 Frequency setting
current input
4 to 20mAdc /0 to 100%
(Input impedance : 250 Ω)
Analog
input
11 Analog common Common terminal for analog input signals
FWD Forward operation
/stop command
Forward operation with FWD-CM ON and
deceleration-stop with FWD-CM OFF
REV Reverse operation
/stop command
Reverse operation with REV-CM ON and
deceleration-stop with REV-CM OFF
Deceleration-
stop with FWD-
CM and REV-
CM ON
X1 Digital input 1
X2 Digital input 2
X3 Digital input 3
The functions listed below can be set by the
X1 to X3 terminal functions.
Set with func-
tions E01 to
E03
(SS1)
(SS2)
Multistep frequency
selection
Up to four steps speed operation can be se-
lected with SS1 and SS2 ON/OFF signals.
(BX)
Coast to stop com-
mand
Drive output is cut immediately and the mo-
tor coasts to a stop (no alarm output) if BX
goes on.
(RST)
Alarm reset The drive releases the status held after stop
with an alarm when RST changes from ON
to OFF.
(THR)
External alarm input The drive stops with an alarm if THR is set to
OFF.
(WE-
KP)
Write-enable com-
mand for keypad
(data change
allowed)
Data rewriting for each function with the key-
pad panel is rejected if WE-KP is OFF.
Rewriting with keypad panel is allowed if
WE-KP is ON.
(Hz/PID
)
PID control cancel PID control cancel with Hz/PID ON
PID control with Hz/PID OFF
(LE)
Link operation
selection
Operation based on command from RS485
with LE ON
Drive single operation with LE OFF
(PLC)
PLC signal power
input
Malfunctions due to PLC power failure are
prevented.
Switching of X3
terminal with
switch SW7
Digital
input
CM Digital common Common terminal for digital input signal