3.8 I/O Connections
u
Sinking/Sourcing Mode Switch
Set the DIP switch S3 on the front of the drive to switch the digital input terminal logic between sinking mode and sourcing
mode; the drive is preset to sinking mode.
Table 3.11 Sinking/Sourcing Mode Setting
Set Value Details
SINK Sinking Mode (0 V common): default setting
SOURCE Sourcing Mode (+24 V common)
SOURCE
DIP Switch S3
SINK
Figure 3.22 DIP Switch S3
n
Transistor Input Signal Using 0 V Common/Sink Mode
When controlling the digital inputs by NPN transistors (0 V common/sinking mode), set the DIP switch S3 to SINK and
use the internal 24 V power supply.
Drive
Shielded cable
Forward run/stop
Reverse run/stop
External fault N.O.
Fault reset
Multi-speed step 1
Multi-speed step 2
Multi-function input
S1
SINK
SOURCE
S2
S3
S3
+24V
S4
S5
S6
SC
SINK
SOURCE
Figure 3.23 Sinking Mode: Sequence from NPN Transistor (0 V Common)
n
Transistor Input Signal Using +24 V Common/Source Mode
When controlling digital inputs by PNP transistors (+24 V common/sourcing mode), set the DIP switch S3 to SOURCE
and use an external 24 V power supply.
3.8
I/O Connections
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
55
3
Electrical Installation
7/16/2008-13:23
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