Inovance MD380-5T5.5GB - Page 45

Mechanical and Electrical Installation MD380 User Manual
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3) Wiring of DO terminal
When the digital output terminal needs to drive the relay, an absorption diode shall be
installed between two sides of the relay coil. Otherwise, it may cause damage to the 24
VDC power supply. The driving capacity is not more than 50 mA.
Note
Do not reverse the polarity of the absorption diode during installation, as shown in )igure
3-11. Otherwise, the 24 VDC power supply will be damaged immediately once there is digital
output.
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DO
+24 V
CME
COM
Relay Diode
MD380
3.2.5 Electric Wiring of the MD380
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250 VAC, 10 mA to 3A
30 VDC, 10 mA to 1 A
)DXOWFRQWDFWRXWSXW
Interface for
external
operation
panel
Extension
card interface
MD380
R
S
T
M
(+)
(-) 3%
U
V
W
MF.KRUN
STOP
RES
QUICK
PRG ENTER
RUN LOCAL/REMOTFED/REV TUNE/TC
RPM %
AVHz
J7
10V
AI1
AI2
PE
COM
GND
AO1
DO1
GND
COM
OP
24V
T/A1
T/%1
T/C1
)DXOWRXWSXW
(NC/NO)
Three-phase
AC power
L2
L3
L1
PE
0&&%
MC
Contactor
Circular
magnetic core
(wind a coil)
L2
L3
L1
PE
S
T
R
)LOWHU
0'%81
%UDNLQJXQLW
%UDNLQJUHVLVWRU
Shielded
cable
Main circuit
Control circuit
Jumper bar
DI1
DI2
DI3
DI4
1-5 kȍ
1
2
3
Shielded
cable
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)RUZDUG-2*
)DXOWUHVHW
Multi-reference
terminal 1
Multi-reference
terminal 2
CME
DI5
J8
IV
AI2 voltage/current
selection
J5
IV
AO1 voltage/current
selection
)0
COM
Circuit
breaker
PG card interface
J12
J3
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