Echelon LonPoint Module - Manual (Page 114)

12-4 Troubleshooting
Improper operation of
analog outputs Jumpers incorrectly set on AO-10 modules. See Chapter 8 for a
discussion of jumper settings. Make certain that the Output 1 jumpers
are set correctly for actuator output 1, and likewise that Output 2
jumpers are set correctly for actuator output 2.
Common wiring shared between two analog outputs. Each analog output
on the AO-10 module must have a separate + and - connection; the two
analog outputs should not share a common + or - connection.
Software configuration is incorrectly set for the specified voltage or
current output. The voltage and current settings must be configured
correctly in order for the AO-10 to properly drive the analog output.