ELO Input
If the ELO input on the controller is triggered, the amplifier will be shut down at a hardware level, the motors will
be essentially in a Motor Off (MO) state. TA3 will change state and the #AMPERR routine will run when the ELO
input is triggered. To recover from an ELO, an MO followed by a WT 2, and an SH must be issued, or the hardware
reset of the controller must be performed.
It is recommended that OE1 be used for all axes when the ELO is used in an application.
See the Optoisolated Input Electrical Informationsection in Chapter 3 Connecting Hardware for information on
connecting the ELO input.
Using External Amplifiers
The BR command must be set to a -1 for any axis where an AMP-43640 is installed but the use of an external axis is
required. This setting will disable the requirement to have the BA, BM and BX or BZ commands executed prior to
being able to issue the SH command for that axis. BR-1 is required for both external servo and stepper drivers.
Use the connectors on top of the controller to access necessary signals to run external amplifiers. For more
information on connecting external amplifiers, see Step 2b. Connecting External Amplifiers and Motorsin Chapter
2.
A6 – AMP-43640 (-D3640) ▫ 222 DMC-41x3 User Manual
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