LMX SERIES™ OPERATION MANUAL
SECTION 7: Auxiliary I/O
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2018 by Pacific Power Source, Inc. (PPS) • All Rights Reserved • No reproduction without written authorization from PPS.
LMX Series Power Source Operation Manual
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7.7
User Programmable Digital signals
Available user defined digital input and outputs are provided as part of the I/O feature.
These signals may be assigned different purposes under software control.
DIGITAL
I/O
PLC
User Programmable Digital Input signals functions are:
•
DIO:INput1 - Digital Input #1
•
DIO:INput2 - Digital Input #2
•
DIO:INput3 - Digital Input #3
User Programmable Digital Output control signals are:
•
DIO:OUTput1 - Digital Output – TTL level
•
DIO:OUTput2 - Digital Output – TTL level
•
DIO:OUTput3 - Digital Output – Open drain
•
DIO:OUTput4 - Digital Output – Open drain
Digital outputs 3 and 4 are open drain with in5Vdc pull-ups.
7.7.1
Relay Control Outputs
RELAY
CONTROL
The external relay control output signals DO3 and DO4 can be used to control external
relays. These control lines are user programmable for difference functions such as FORM
relay control and Transformer Option control.
These relays are used to either short all outputs together for single-phase output mode or to
connect and disconnect and external transformer for a higher voltage AC output range.
