6-218
6.11.2.2 Specifications
• Failure to set the switches on the DI interface expansion card (SW1, SW2) correctly will prevent the system
from operating properly. Read information about the settings below and be sure to set the switches correctly.
Table 6.11.1 Hardware specifications
Item Specifications
Name DI interface card
Type OPC-VG1-DI *SW1 is used to switch between the DIA and DIB settings.
No. of
contacts
16 contacts (4 bits × 4 digits)
Ground CM; common ground for all 4 contacts
Input
Circuits
Photocoupler insulation
SW2 is used to switch between current sink output (sink) and current source output
(SOURCE).
Flowing current per circuit: Approx. 3 mA
Power supply
24 V
Power is supplied from the inverter's printed circuit board. Connect the power supply harness
to CN24 or CN25 on the inverter.
(1) Printed circuit board switch
Figure 6.11.3 illustrates the general position of the switches as seen from
the top surface of the printed circuit board.
• Use SW2 on the DI interface card's printed circuit board to select
between sink and source control input.
• Use SW1 on the card's printed circuit board to select between the DIA
and DIB settings.
Table 6.11.2
Switch Factory default
SW2 SINK
SW1 DIA
(2) Input circuits
The following figure illustrates the circuit architecture for the SW2 sink and source settings:
Contact
Required contact
capacity: 24 V DC,
approx. 3 mA
Required contact
capacity: 24 V DC,
approx. 3 mA
SINK SOURCE
Contact
CM
P24 M24
CM
P24M24
Figure 6.11.4
Figure 6.11.3
SW1
DIADIB
EP-4128-
Connector
OPC-VG1-DI
Power supply
harness
SINKSOURCE
SW2
To Next Page
Loading...
