HD2 Series Inverter Installation Guidelines
-26-
4.4 Standard wiring of control circuit
4.4.1 Wiring diagram of basic control circuit
+24V
PE
COM
S4
S3
S2
S1
HDIB
PW
HDIA
Forward running
Forward jogging
Fault reset
+10V
AI1
AI2
GND
PE
-10V
(external)
VFD
AO1
V I
SW2
GND
Analog output
0-10V/0-20mA
Y1
CME
COM
HDO
Optional between high-
speed pulse output and
open collector output
485+
485-
485G
RS485
communication
RO2C
RO2B
RO2A
RO1C
RO1B
RO1A
Relay 1
output
Relay 2
output
ON
OFF
SW3
Multifunction
analog input
Power used for
frequency setting
H1
H2
+24V
S2
S1
Safety
controller
Open circuit
Safety
input
Safety
switch
Y1
output
Safety state
feedback
Figure 4-15 Wiring diagram of control circuit
Note: If wire-passing board outlet space is insufficient when all terminals on the control board are
wired, cut the knock-out hole on the lower cover for wire outlet. If a dangerous situation occurs when
the knock-out hole is cut for a purpose but not wire outlet, we will not bear any responsibility.
Locally provided +10.5V power
Input range: AI1: 0–10V/0–20mA; AI2: -10V–+10V
Input impedance: 20kΩ during voltage input; 250Ω during current input
AI1 voltage or current input is set by P05.50.
Resolution ratio: When 10V corresponds to 50Hz, min. resolution ratio is 5mV
Error: ±0.5% at 25°C when input is above 5V/10mA
+10.5V reference zero potential
Output range: 0–10V/0–20mA