INSTALLATION AND WIRING
16
(
2
)
Description of the control circuit terminals
Type Symbol
Terminal
Name
Description
STF
Forward
rotation start
Turn on the STF signal to start forward
rotation and turn it off to stop.
STR
Reverse
rotation start
Turn on the STR signal to start reverse
rotation and turn it off to stop.
When the STF
and STR signals
are turned on
simultaneously,
the stop
command is
given.
RH, RM,
RL
Multi-speed
selection
Combine the RH, RM and RL signals
as appropriate to select multiple
speeds.
MRS Output stop
Turn on the MRS signal (20ms or
longer) to stop the inverter output.
Used to shut off the inverter output to
bring the motor to a stop by the
electromagnetic brake.
Input terminal
function choices
(Pr. 180 to
Pr. 183) change
terminal functions.
RES Reset
Used to reset the protective circuit activated. Turn on the
RES signal for more than 0.1 second then turn it off.
SD
Contact input
common
(sink*)
Common to the contact input terminals and terminal FM.
Common output terminal for 24VDC 0.1A power output
(PC terminal).
Input signals
Contacts, e.g. start (STF), stop (STOP) etc
PC
Power output
and external
transistor
common
Contact input
common
(source*)
When transistor output (open collector output), such as a
programmable controller (PLC), is connected, connect the
external power supply common for transistor output to this
terminal to prevent a fault caused by undesirable current.
This terminal can be used as a 24VDC, 0.1A power
output.
10
Frequency
setting power
supply
5VDC, permissible load current 10mA
2
Frequency
setting
(voltage)
By entering 0 to 5VDC (0 to 10VDC), the maximum output
frequency is reached at 5V (or 10V) and I/O are
proportional. Use Pr. 73 to switch between input 0 to
5VDC (factory setting) and 0 to 10VDC. Input resistance
10k
Ω
. Maximum permissible voltage 20V.
4
Frequency
setting
(current)
By entering 4 to 20mADC, the maximum output frequency
is reached at 20mA and I/O are proportional. This input
signal is valid only when the AU signal is on. Input
resistance 250
Ω
. Maximum permissible current 30mA.
Analog
Frequency setting
5
Frequency
setting input
common
Common to the frequency setting signals (terminal 2, 1 or 4).
Do not connect to the earth.
Note: Assign the AU signal to any of the terminals using the input terminal function
selection (Pr. 180 to Pr. 183).
* Used as a contact input signal common terminal for the 400V class by switching
between sink logic and source logic. (Refer to page 23).
To Next Page
Loading...
