Amplifier Enable Circuit
Sinking Output Configuration
(Pin 1 of LTV8441 in Pin 2 of Socket U4)
TTL level Amp
Enable signal
from controller
(SH = 5V, MO = 0V)
TTL level Amp
Enable signal
from controller
(SH = 5V, MO = 0V)
PIN 1
RP2 (470 Ohm)
Pin 1
LTV8441
Pin 1
of socket
Socket U4
RP6 (820 Ohm)
+5 V
GND
AEC2
+12 V
+5 V
GND
AEC2
+12 V
AECOM2
JP2
Amp Enable Output to Drive
(AENn)
AECOM2
+12 V
AEC1
+5 V
GND
JP2
AECOM1
JP1
Figure 3-4: Amplifier Enable Circuit Sinking Output Configuration
Sinking Configuration (pin1 of LTV8441 chip in pin2 of socket U4)
Logic State JP1 JP2
RP2
(square pin next to RP2 label is 5V)
5V, HAEN (Default Configuration) 5V - AECOM1 GND – AECOM2 Dot on R-pack next to RP2 label
5V, LAEN 5V – AECOM1 GND – AECOM2 Dot on R-pack opposite RP2 label
12V, HAEN +12V – AECOM1 GND – AECOM2 Dot on R-pack next to RP2 label
12V, LAEN +12V – AECOM1 GND – AECOM2 Dot on R-pack opposite RP2 label
Isolated 24V, HAEN AEC1 – AECOM1 AEC2 – AECOM2 Dot on R-pack next to RP2 label
Isolated 24V, LAEN AEC1 - AECOM1 AEC2 - AECOM2 Dot on R-pack opposite RP2 label
For 24V isolated enable, tie +24V of external power supply to AEC1 at the D-sub, tie common return to AEC2. Replace
RP6 with a 4.7 kΩ resistor pack. For Axes A-D, AEC1 and AEC2 are located on the EXTERNAL DRIVER (A-D) D-Sub
connector. For Axes E-H, AEC1 and AEC2 are located on the EXTERNAL DRIVER (E-H) D-Sub connector.
Note: AEC1 and AEC2 for axes A-D are NOT connected to AEC1 and AEC2 for axes E-H.
Table 3-2: Sinking Configuration
DMC-40x0 User Manual Chapter 3 Connecting Hardware • 42
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