Chapter 3 Ambient Environment and Installation
3-13
3.6 Description of connection terminals
Descriptions of main circuit terminals
Symbol Description
L1 ( L )
L2
L3 ( N )
Main power input Single-phase: L/N
Three-phase: L1/L2/L3
P
R
Braking resistor connection terminal: Used in applications
when it is required to stop a high inertia load rapidly.
(refer to specifications of the braking resistor)
For
200V class:0.5~3HP,
400V class:1~15HP
T1
T2
T3
Inverter outputs
Descriptions of N310 control circuit terminals
Symbol Description
Syn + Positive terminal for multi-function output
Syn - Negative terminal for multi-function output
30VDC/200mA
R1C Common contact
R1B Normal close contact
R1A
Normal open contact
Multifunctional output
terminals
Contact rated capacity:
(250VAC/1A or30VDC/1A)
Contact using description:(refer
to parameters 01-09, 01-10)
10V
Frequency knob (VR) power source terminal (pin 3)
AI1
Analog frequency signal input terminal AI1(0
～10VDC/0～20mA)
AI2
PID signal input terminal or Bias signal input terminal AI2(0
～10VDC/0～20mA)
GND
ground
COM
Common for digital input signal for S1~S6 input.
FM+
The positive multifunction analog output signal for multifunction (refer to parameter
2-12 description), the signal for output terminal is 0-10VDC (below 2mA).
S1
S2
S3
S4
S5
S6
multifunction input terminals (refer to parameter 1-00
～1-05 description)
A
(+) RS485 communication applications
B
(- ) RS485 communication applications
GND
connected to protective ground (R S 4 8 5)
(above 4010)
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