Electric Installation; Standard Connection Diagram - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual
AC300 Keyboard pocket opening size

Electric Installation

3.6
This chapter explains the regulations that users have to obey to ensure safe use, best performance and reliable
running.
Safety precaution
● Must earth reliably while inverter is running. Otherwise there is danger of casualty and
unstable inverter 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 inverter or the related cable by HV insulation test equipment.
● If the inverter 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.
Installation and Wiring
18
AC300 Series Vector Control Inverter Manual

Standard Connection Diagram

External Brake Unit
R
External
Brake
Resistor
MCCB Contactor Input Rector
(-) ( ) ( )
+ +
R
R
S
S
T
T
Note2
+24V
PLC
Note:Function description in brackets is
COM
factory default
(Forward)
X1
(Reverse)
X2
(FWD JOG)
X3
(REV JOG)
X4
(Free STOP)
X5
PUL
COM
A+
RS485 Differential
120Ω
Communication
B-
Shielded cable (the end close to
VFD grounding) +10V
Analog Voltage/Current quantity input
AI1
Analog Voltage/Current quantity input
AI2
GND
Note: 1.MAX Output of +10V port :50mA
2.Inner resistance of AI1/AI2 Port
Chart 3-8:AC300 series inverter standard diagram
Note:
 When installing DC reactor, make sure to dismantle the short connector between terminal P1 and (+).
 NPN or PNP transistor signal can be selected as input of multi-function input terminal (X1~X5/PUL) .
Inverter built-in power supply (+24V terminal) or external power supply (PLC terminal) can be chosen as
bias voltage. Factory setting '+24V' short connect with 'PLC', which locates between RJ45 and
terminals.
● Auxiliary terminal output capacity
Installation and Wiring
External DC Rector
Note1
Short
Piece
Output Rector
PB ( ) P1
+
U
U
V
M
V
~
W
W
Shielded cable or armoured cable
VFD
(the end close to VFD grounding)
E (The grounding resistance
is less than 10 ohms)
MAX Output Of Contact:
AC220V
3A/240VAC
TA
Coil 5A/30VDC
TB
TC
AC0V
+24V
Shielded cable
Coil
(the end close
Y
to VFD grounding)
COM
Note:
1.MAX Output of +24V Port:DC24V/100mA
2.Max Output of Y Port :DC24V/50mA
10
_
mA
-
+
Shielded cable (the
A0
end close to VFD
GND
grounding)
Note:When output type of AO port as
frequency and Voltage,
Maximum Output:2mA
Legend: 1.Symbol represent main circuit terminals;
2.Symbol represent control circuit terminals.
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