Mitsubishi Electronics FR-V540-1.5K to 55K ユーザーズマニュアル

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8
Control circuit terminal specifications
1.4 Control circuit terminal specifications
Type
Terminal 
Symbol
Terminal Name
Description
Rated Specifications
Input
 sig
nal
s
Con
tac
t in
put
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 4.7k
Ω
Voltage at opening 21 to 
27VDC
Current at short-circuited 
4 to 6mADC
Control by open collector 
output or 0V contact 
signal
STR
Reverse rotation 
start
Turn on the STR signal to start 
reverse rotation and turn it off to 
stop.
The function of the terminals 
changes according to the output 
terminal function selection 
 
(Pr. 187).
Refer to page 150 for details.
DI1 to DI4
Digital input 
terminals 1 to 4
The function of the terminals changes according to the 
output terminal function selection (Pr. 180 to Pr. 183). 
Refer to page 150 for details.
OH
Thermal relay 
protector input
Temperature sensor terminal input for motor overheat 
protection.
OHT error occurs when terminals OH and SD are open.
Input resistance 150k
Ω
Voltage at opening 21 to 
27VDC
Current at short-circuited 
140 to 180mADC
Isolate by photocoupler
RES
Reset
Used to reset alarm output provided when protective 
circuit is activated. Turn on the RES signal for more than 
0.1s, then turn it off.
Recover about 1s after reset is cancelled.
Input resistance 4.7k
Ω
Voltage at opening 21 to 
27VDC
Current at short-circuited 
4 to 6mADC
Control by open collector 
output or 0V contact 
signal.
SD
Contact input 
common (sink)
Contact input common terminal. Common output 
terminal for 24VDC 0.1A power supply (PC terminal).
Isolated from terminals 5 and SE.
PC
24VDC power 
supply and 
external transistor 
common, contact 
input common 
(source)
When connecting a transistor output (open collector 
output) such as a programmable controller, connect the 
external power supply common for transistor output to 
this terminal to prevent a malfunction caused by a sneak 
current. PC-SD can be used as a 24VDC and 0.1A 
power supply. Note that a sneak current may not be 
prevented in this case. When source logic has been 
selected, this terminal serves as a contact input 
common.
Voltage range 18 to 26 
VDC
Permissible load current 
0.1A
S
peed
 se
tt
in
g
10E
Speed setting 
power supply
Used as power supply when connecting volume for 
speed setting (torque setting) from outside of the 
inverter. (terminal 5 is a common terminal)
10VDC±0.4V
Permissible load current 
10mA
2
Speed setting 
(voltage)
By entering 0 to 10VDC, the maximum output speed is 
reached at 10V and I/O are proportional. 
Input resistance 
10k
Ω±1kΩ
Permissible maximum 
voltage 20VDC
3
Torque setting 
terminal
Acts as a torque setting signal for torque control or as a 
torque limit signal for speed control or position control.
Acts as an input terminal for the external analog-based 
torque bias function.
0 to ±10VDC input
1
Multi-function 
setting terminal
Since this is a multi-function selection terminal, its 
function varies with the Pr.868 "terminal 1 function 
assignment" setting. Refer to page 183 for details.
0 to ±10VDC input
5
Speed setting 
common, Analog 
signal output 
common
Common terminal for speed setting signal (terminal 2, 1 
or 3) or DA1 and DA2.
Isolated from terminals SD and SE. Do not earth 
(ground).