Design
Chapter 3
H Control Circuit Terminals
D Input Terminals (On Right-hand Side)
No external power supply is required because a built-in power supply is provided.
Terminal
symbol
Name and description
Interface
SF
Forward/Stop
When the terminal is ON, the motor rotates in
the forward direction. When the terminal is OFF,
the motor stops.
SR
Reverse/Stop
24 VDC, 8 mA
When the terminal is ON, the motor reverses.
When the terminal is OFF, the motor stops.
(See note 3)
S1
SC
Multi-function input (see note 1)
Sequence input common
Input terminal common to SF, SR, and S1
Frequency reference power supply
FS
Output voltage: 12 VDC
Permissible amperage: 20 mA
FR
FC
Frequency reference input (see note 2)
0 to 10 VDC is input.
Input impedance
Frequency reference common
Note 1. Constant No. 06 (n06) is used to set this function. This constant is factory-set to
“fault reset.”
Note 2. FR can be switched to an amperage input terminal (4 to 20 mA) by setting the
internal DIP switch and constant No. 02 (operation mode selection). For details,
refer to 7-2 Frequency Reference by Amperage Input.
Note 3. The circuit for a 400-VAC-class Inverter is as shown below.
SW2
24 V
SF
GND
SR
S1 to S3
SC
3.3 K
360
0.1µ
GND
3-9
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