DMC-1000 Chapter 3 Connecting Hardware • 31
To change the voltage level of the AEN signal, note the state of the resistor pack on the ICM-1100.
When Pin 1 is on the 5V mark, the output voltage is 0-5V. To change to 12 volts, pull the resistor
pack and rotate it so that Pin 1 is on the 12 volt side. If you remove the resistor pack, the output signal
is an open collector, allowing the user to connect an external supply with voltages up to 24V.
100-PIN
RIBBON
ACMDX
AMPENX
GND
ICM-1100DMC-1000
+5V+12V
SERVO MOTOR
AMPLIFIER
7407 Open Collector
Buffer. The Enable signal
can be inverted by using a
7406.
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).
Figure 3-4 - Connecting AEN to the motor amplifier
TTL Inputs
1080
As previously mentioned, the DMC-1000 has 8 uncommitted TTL level inputs for controllers with 5 o
more axes. These are specified as INx where x ranges from 17 thru 24. The reset input is also a TTL
level, non-isolated signal and is used to locally reset the DMC-1000 without resetting the PC.
Analog Inputs
The DMC-1000 has seven analog inputs configured for the range between -10V and 10V. The inputs
are decoded by a 12-bit A/D converter giving a voltage resolution of approximately .005V. The
impedance of these inputs is 10 KΩ. The analog inputs are specified as AN[x] where x is a number 1
thru 7. Galil can supply the DMC-1000 with a 16-bit A/D converter as an option.
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