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3.5 Standard Wiring
This chapter explains the regulations that users have to obey to ensure safe use, best performance and reliable running.
Safety precaution
Standard NPN Connection Diagram
AC
power
input
Multi-function
contact
input
Frequency
control
input
● Must earth reliably while drive is running. Otherwise there is danger of casualty and unstable drive performance.
● To ensure safe running, only trained professional person can do installation and wiring job.
● No operation under power connected state. Otherwise there is danger of electric shock even death.
● Before operation, please cut all related equipments power, ensure that the main circuit DC current has dropped to
safe range. And please operate after 5 mins.
● Control cable, power cable and motor cable must be separated. They can not be in the same cable trough or cable
rack.
● This equipment can only be used as the maker states. Please consult Veichi while using in special case.
● No insulation test for the drive or the related cable by HV insulation test equipment.
● If the drive or the peripheral equipment (filer, reactor and etc) needs insulation test, firstly 500V megohmmeter
should be used to test the insulation resistance which should not be lower than 4MΩ.
Breaker
Contactor
Input reactor
R
R
S
S
T
T
Note 2
(Run forward)
X1
(Run reverse)
X2
(Jog forward)
X3
(Jog reverse)
X4
Note 3
GND/COM
A+
RS485 differential
communication
B-
Note: The solid mark in the box is the factory
default value of the inverter.
Note 4
Pulse input
X4
PUL
Twisted pair shielded cable (near
the inverter end grounded)
+ 10V
Voltage/current type
analog input
AI
GND
1, +10V port maximum output: 50mA
Note:
2, AI port internal resistance: 75KO
Note3: 0.4kW-5.5kW corresponds to access to GND,
5.5kW-22kW corresponds to access to COM.
Braking resistor
Note1
R
Output reactor
P
PB
U
V
W
VFD
E
+24V
AC220V
TA
Coil
TB
TC
S3
+24V
120
O
Y
Twisted pair shielded cable (near the
inverter end grounded)
GND/COM
Note:
Note 3
1
+24V
、
port max output:
2
Y
、
port max output:
inverter end grounded)
S1
S2
U
I
I
AO
S4
GND
U
Note:
AO port as voltage type
Maximum output when signal output: 2mA
Scale： Symbol
Symbol
13
Installation and Wiring
U
V
M
~
W
Shielded cable or armored cable
(near the inverter terminal ground)
(grounding resistance is
less than 10 ohms)
Maximum output of the
contact:
3A/240VAC
5A/30VDC
AC0V
Coil
DC24V/100mA
DC24V/50mA
Twisted pair shielded cable (near the
Analog
monitor
5
_
signal
V
Note 3
output
-
+
represents the main curcuit terminal
represents control curcuit terminal
AC10 Series Frequency Inverter Technical Manual
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