Installation, Wiring,
and Specifications
2--27
Installation, Wiring, and Specifications
DL105 PLC User Manual, 3rd Edition
DL105 versions with DC type input or output points contain a dedicated High-Speed
I/O circuit (HSIO). The circuit configuration is programmable, and it processes s elect
I/O points independently from the CPU scan. Chapter 4 discusses the programming
options for HSIO. While the HSIO c ircuit has six modes,we show wiring diagrams for
two of the most popular modes in this chapter. The high-speed input interfaces to
points X0 -- X3. Properly configured, the DL105 can count quadrature pulses at up to
5 kHz from an incremental encoder as shown below.
Encoder Input Wiring
+
--
12 -- 24 VDC
Phase A
Phase B
Encoder
Signal Common
DL105 versions with DC type output points can use the High Speed I/O Pulse Output
feature. It can generate high-speed pulses for specialized control such as stepper
motor / intelligent drive systems. Outputs Y0 and Y1 can generate pulse and
direction signals, or they can generate CCW and CW pulse signals respectively. See
Chapter 3 on high-speed input and pulse output options.
Signal Common
Motor
Amplifier
Pulse Output Wiring
Pulse
Direction
Power Input
High-Speed I/O
Wiring Methods
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