G&L MMC-A2, Руководство по оборудованию

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Standalone MMC Control
32 MMC Hardware Manual G & L Motion Control Inc.
control. This board also provides a PiCPro Port (RS-232 serial
interface for communicating with a computer), User Port (RS-232/
RS-485 serial interface for communicating with a serial device),
Block I/O Port (proprietary serial interface for communicating with
Block I/O Expansion Modules), and a General I/O Port (16 DC out-
puts and 16 DC inputs).
4.4.2 Motion Control Board
The Motion Control Board and it’s related external connections are
located on the left side of the control. The motion control side of the
MMC unit can be either an Analog Servo board or a SERCOS
board.
4.4.2.1 Analog Servo board
The Analog Servo board provides conventional analog/
digital interfacing for two or four drives.
The typical signals needed to interface to an analog
drive are provided by the analog servo module. The
drive command is in the form of an analog voltage
(±10V). Feedback is accepted from quadrature type
encoders with differential outputs. Digital I/O (+24
VDC) is used for drive signals such as enable, reset, and
fault. Fast inputs are provided for each encoder input
and can be configured to latch encoder position under
various conditions.
The analog servo board is offered in both 2 1/2 and 4 1/2
axis configurations. An axis is considered to be an
analog output with a corresponding encoder input. In
each configuration shown in the following table, note
that there is an extra encoder input. This is referred to as
a half axis.
Table 4-1: Available Machine Control General I/O
Available I/O 2 1/2 Axis 4 1/2 Axis
GEN I/O Port DC Inputs 16 16
GEN I/O Port DC Outputs 16 16