Amplifier Enable Circuit - Galil Motion Control DMC-21 5 Series User Manual

Amplifier Enable Circuit

This section describes how to configure the ICM-20105 for different Amplifier Enable configurations.
The ICM-20105 gives the user a broad range of options with regards to the voltage levels present on the enable
signal. The user can choose between High-Amp-Enable (HAEN), Low-Amp-Enable (LAEN), 5V logic, 12V logic,
external voltage supplies up to 24V, sinking, or sourcing. Table A7.5 and Table A7.6 found below illustrate the
settings for jumpers, resistor packs, and the socketed optocoupler IC. Refer to Figure A7.5 and Figure A7.6 for
precise physical locations of all components. Note that the resistor pack located at RPAE1 may be reversed to
change the active state of the amplifier enable output. However, the polarity of RPAE2 must not be changed; a
different resistor value may be needed to limit the current to 6 mA. The default value for RPAE2 is 820 Ω, which
works at 5V. When using 24 V, RPAE2 should be replaced with a 4.7 k resistor pack.
Sinking Configuration (pin1 of chip in pin2 of socket U1)
Logic State
5V, HAEN (Default configuration)
5V, LAEN
12V, HAEN
12V, LAEN
Isolated 24V, HAEN
Isolated 24V, LAEN
For 24V isolated enable, tie +24V of external power supply to AECOM1 at any axis D-sub connector, tie common return to AECOM2. Replace
RPAE2 with a 4.7 kΩ resistor pack. AECOM1 and AECOM2 are located on any axis D-sub connector. All pins labeled AECOM1 are connected. All
pins labeled AECOM2 are connected.
A7 – ICM-20105 ▫ 188
Figure A7.5: Amplifier Enable Circuit Sinking Output Configuration
JP1 JP2
5V – AEC1 GND – AEC2
5V – AEC1 GND – AEC2
+12V – AEC1 GND – AEC2
+12V – AEC1 GND – AEC2
AECOM1 – AEC1 AECOM2 – AEC2
AECOM1 – AEC1 AECOM2 – AEC2
Table A7.5: Sinking Configuration

RPAE1 (square pin next to RPAE1 label is 5V)
Dot on R-pack next to RPAE1 label
Dot on R-pack opposite RPAE1 label
Dot on R-pack next to RPAE1 label
Dot on R-pack opposite RPAE1 label
Dot on R-pack next to RPAE1 label
Dot on R-pack opposite RPAE1 label
DMC-21x5 User Manual 1.0a1