Galil Motion Control DMC-18 2 Series, User Manual

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32 ● Chapter 3 Connecting Hardware DMC-18x2
100-PIN
HIGH
DENSITY
CABLE
MOCMDX
AMPENX
GND
ICM-1900 / ICM-2900 DMC-18x2
+5V +12V
SERVO MOTOR
AMPLIFIER
Analog Switch
Connection to +5V or +12V made through
Resistor pack RP1. Removing the resistor pack
allows the user to connect their own resistor to
the desired voltage level (Up to24V). Accessed
by removing Interconnect cover.
7407 Open Collector
Buffer. The Enable signal
can be inverted by using a
7406. Accessed by
removing Interconnect
cover.
An external 24V supply is only necessary if a
24V AEN signal is necessary. Remove the
resistor pack from RP1 and connect a resistor in
series with the 24V supply.
+ -
External 24V PS
Figure 3-1 - Connecting AEN to the motor amplifier
TTL Inputs
As previously mentioned, the DMC-18x2 has 8 uncommitted TTL level inputs. The
command @IN, or TI will read the state of the inputs. For more information on
these commands refer to the Command Reference.
The reset input is also a TTL level, non-isolated signal and is used to locally reset the
DMC-18x2 without resetting the PC.
TTL Outputs
The DMC-18x2 provides eight general use outputs, an output compare and an error signal output.
The general use outputs are TTL and are accessible through the ICM-2900 as OUT1 thru OUT8.
These outputs can be turned On and Off with the commands, SB (Set Bit), CB (Clear Bit), OB (Output
Bit), and OP (Output Port). The outputs can sink or source up to 24 mA. For more information about
these commands, see the Command Reference. The value of the outputs can be checked with the
operand _OP and the function @OUT[] (see Chapter 7, Mathematical Functions and Expressions).
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