18
Control circuit specifications
2.3 Control circuit specifications
2.3.1 Control circuit terminal
indicates that terminal functions can be selected using Pr. 178 to Pr. 182, Pr. 190, Pr. 192 (I/O terminal function selection).
(Refer to page 100).
(1) Input signal
Type
Terminal
Symbol
Terminal Name Description Rated Specifications
Refer to
Page
Contact input
STF Forward rotation start
Turn ON the STF signal to
start forward rotation and
turn it OFF to stop.
When the STF and STR
signals are turned ON
simultaneously, the stop
command is given.
Input resistance 4.7kΩ
Voltage when contacts are
open
21 to 26VDC
When contacts are short-
circuited
4 to 6mADC
104
STR Reverse rotation start
Turn ON the STR signal to
start reverse rotation and
turn it OFF to stop.
RH,
RM,
RL
Multi-speed selection
Multi-speed can be selected according to the
combination of RH, RM and RL signals.
80
SD
Contact input common
(sink) (initial setting)
Common terminal for contact input terminal (sink logic)
and terminal FM.
——
External transistor
common (source)
Connect this terminal to the power supply common
terminal of a transistor output (open collector output)
device, such as a programmable controller, in the
source logic to avoid malfunction by undesirable
currents.
24VDC power supply
common
Common output terminal for 24VDC 0.1A power supply
(PC terminal).
Isolated from terminals 5 and SE.
PC
External transistor
common (sink)
(initial setting)
Connect this terminal to the power supply common
terminal of a transistor output (open collector output)
device, such as a programmable controller, in the sink
logic to avoid malfunction by undesirable currents.
Power supply voltage range
22 to 26.5VDC
permissible load current
100mA
21
Contact input common
(source)
Common terminal for contact input terminal (source
logic).
24VDC power supply Can be used as 24VDC 0.1A power supply.
Frequency setting
10
Speed setting power
supply
Used as power supply when connecting potentiometer
for speed setting from outside of the drive unit.
(Refer to Pr. 73 Analog input selection)
5.0V ± 0.2VDC
permissible load current
10mA
130
2 Speed setting (voltage)
Inputting 0 to 5VDC (or 0 to 10V) provides the maximum
rotation speed at 5V (10V) and makes input and output
proportional. Use
Pr. 73
to switch between input 0 to 5VDC
input (initial setting) and 0 to 10VDC.
Input resistance10kΩ ± 1kΩ
Permissible maximum
voltage 20VDC
130
4 Speed setting (current)
Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides
the maximum rotation speed at 20mA and makes input
and output proportional. This input signal is valid only
when the AU signal is ON (terminal 2 input is invalid).
Use Pr. 267 to switch
from among input 4 to
20mA (initial setting), 0
to 5VDC and 0 to
10VDC. Set the voltage/
current input switch in
the "V" position to select
voltage input (0 to 5V/0 to 10V).
Current input:
Input resistance 249Ω ± 5Ω
Maximum permissible
current 30mA
Voltage input:
Input resistance10kΩ ± 1kΩ
Permissible maximum
voltage 20VDC
130
5 Speed setting common
Speed setting signal (terminal 2, 4) common terminal.
Do not earth (ground).
——
Thermistor
10
2
PTC thermistor input
For connecting PTC thermistor output.
When PTC thermistor protection is valid (Pr. 561 ≠
"9999"), terminal 2 is not available for speed setting.
Adaptive PTC thermistor
specification
Heat detection resistance :
500
Ω
to 30k
Ω
(Set by
Pr.
561
)
91
NOTE
Set Pr. 267 and a voltage/current input switch correctly, then input analog signals in accordance with the settings.
Applying a voltage with voltage/current input switch in "I" position (current input is selected) or a current with switch in
"V" position (voltage input is selected) could cause component damage of the drive unit or analog circuit of output
devices. (Refer to page 130 for details.)
Voltage input
Current input
(initial status)
