3. Electrical Installation
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3
Ƶ
Wiring of DI1 to DI5
Ɣ
SINK wiring
Figure 3-21 Wiring in SINK mode
0V
DI5
DI1
OP
+24V
NPN
Signal
External
controller
MD290 drive
control board
+VCC
COM
0V
DI5
DI1
OP
+24V
NPN
Signal
Internal 24 V power supply is applied.
External 24 V power supply is applied.
MD290 drive
control board
External
controller
Applying internal 24 V power supply is the most commonly used wiring mode. In this
mode, short ter24V and OP and connect COM to external power 0V.
To apply external 24V power supply, remove the jumper between ter24V
and OP, and between terminals COM and CME. Connect positive side of external
power 24V to OP, and external power 0V to corresponding DI terminal via contact on
external controller.
CAUTION
In SINK mode, do not connect DI terminals of different AC
drives in parallel, otherwise, a digital input fault will occur. If it
is necessary to connect different AC drives in parallel, connect
a diode in series at digital input. The diode characteristics must
satisfy the following requirements:
Ɣ
IF: > 40 mA
Ɣ
VR: > 40 V
Figure 3-22 Parallel connection of DI terminals in SINK mode
0V
DI1
OP
+24V
+24V
NPN
Signal
External
controller
+VCC
COM
DI1
OP
+24V
Control board of
MD290 drive 1
COM
Control board of
MD290 drive 2
Summary of Contents for MD290 Series
Page 1: ......
Page 79: ...3 Electrical Installation 78 3 ...
Page 80: ...4 Operating Panel Keypad Display 4 1 Introduction 80 4 2 Inbuilt LED Operating Panel 80 ...
Page 92: ...5 Quick Setup 5 1 Get Familiar With Operating Panel 92 5 2 Setup Flowchart 93 ...
Page 227: ...7 Interfaces and Communication 226 7 ...
Page 285: ...10 Troubleshooting 284 11 ...
Page 349: ......
Page 350: ......