Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual page 32

Terminal
Type Terminal Name
Symbol
Safe stop input
S1
(Channel 1) *
Safe stop input
S2
(Channel 2) *
Frequency setting power
10
supply
Frequency setting
2
(voltage)
Frequency setting
4
(current)
Frequency setting
5
common
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 inverter or analog circuit of output
devices. Refer to page 176 for details.
Description
S1/S2 are safe stop signals for use with in
conjunction with an approved external safety unit.
Both S1/S2 must be used in dual channel form.
Inverter output is shutoff depending on shorting/
opening between S1 and PC, S2 and PC.
In the initial status, terminal S1 and S2 are shorted
with terminal PC by shortening wire.
Remove the shortening wire and connect the safety
relay module when using the safety stop function.
* Terminal S1 and S2 are only available for the safety
stop function model.
Used as power supply when connecting
potentiometer for frequency setting (speed setting)
from outside of the inverter. (Refer to Pr. 73 Analog
input selection.)
Inputting 0 to 5VDC (or 0 to 10V) provides the
maximum output frequency 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.
Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides
the maximum output frequency 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). To use terminal 4 (initial setting is current
input), set "4" to any of Pr.178 to Pr.184 (input terminal
function selection), and turn AU signal ON. Use Pr. 267
to switch input among 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).
Standard control circuit Safety stop function
terminal model
Current input Current input
Voltage input
(initial status) (initial status)
Frequency setting signal (terminal 2, 4) common
terminal. Do not earth (ground).
Control circuit specifications
Rated Specifications
Input resistance 4.7kΩ
Voltage when contacts are
open
21 to 26VDC
When contacts are short-
circuited
4 to 6mADC
5.2V ± 0.2VDC
permissible load current
10mA
Input resistance10kΩ ± 1kΩ
Permissible maximum
voltage 20VDC
Current input:
Input resistance 233Ω ± 5Ω
Maximum permissible
current 30mA
Voltage input:
Input resistance10kΩ ± 1kΩ
Permissible maximum
voltage 20VDC
model
Voltage input
—
Refer to
Page
31
176
176
176
2
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23