Inovance MD330H User Manual

Product Information MD380 User Manual
- 24 -
2.4 Peripheral Electrical Devices and System Conguration
When the MD380 is used to control the synchronous or asynchronous motor, forming a
control system, it is necessary to install various electrical devices on the input and output
sides of the AC drive to ensure the system safety and stability.
In addition, several optional extension cards are available for the MD380 to implement
various functions. The system configuration of three-phase 220 V/380 V/480 V voltage
class, 3.7 kW and above is shown in the following gure.
Figure 2-4 System conguration of three-phase 220 V/380 V/480 V voltage class, 3.7 kW
and above
Ground
AC input
reactor
Electromagnetic
contactor
Moulded case circuit
breaker (MCCB) or earth
leakage circuit breaker
(ELCB)
Three-phase AC
power supply
Use within the allowable power
supply specification of the AC drive.
Select a proper breaker to resist
large in-rush current that flows into
the AC drive at power-
on.
Reliably ground the motor and the
AC drive to prevent electric shock.
Suppress the high order harmonic
to improve the power factor.
Braking resistor
Noise filter on
input side
To guarantee safety, use an
electromagnetic contactor. Do not use it to
start or stop the AC drive because such
operation reduces the service life of the
AC drive.
Reduce the electromagnetic
interference on the input side.
AC output
reactor
R
S
T
P(+)
W
V
U
DI1
DI2
DI3
DI4
DI5
COM
MF.K
RUN
STOP
RES
QUICK
PRG ENTER
RUN
LOCAL/REMOT FED/REV TUNE/TC
RPM
%
A VHz
BR
Braking unit
+
-
MD380
Motor
Forward RUN
Forward JOG
Fault reset
Multi-
reference
terminal 1
DI1
DI2
DI3
DI4
DI5
COM
Ground
Multi-reference
terminal 2

Inovance MD330H Specifications

General

Brand	Inovance
Model	MD330H
Category	DC Drives
Language	English