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
Page 179 of 463
7.2.3
I/O Signal Table by Function
Pin assignments in order of pin number are shown in the table below.
Pin # Name
Primary Function
Alternate Use / Comment
Type
Direction
10
AI1
Analog Input – Volt RMS Phase A
Any set point
Analog
Input
11
AI2
Analog Input – Volt RMS Phase B
Any set point
Analog
Input
12
AI3
Analog Input – Volt RMS Phase C
Any set point
Analog
Input
13
AI4
Analog Input – Current Limit RMS all
phases
Any set point
Analog
Input
22
AO1
Analog output #1 – Volt RMS
Measurements Phase A
Any other measurement
Analog
Output
23
AO2
Analog output #2 – Volt RMS
Measurements Phase B
Any other measurement
Analog
Output
24
AO3
Analog output #3 – Volt RMS
Measurements Phase C
Any other measurement
Analog
Output
25
AO4
Analog output #4 – Total Power (all
phases combined)
Any other measurement
Analog
Output
3
DI1
General Purpose Digital Input #1
Programmable
Digital
Input
4
DI2
General Purpose Digital Input #2
Programmable
Digital
Input
5
DI3
General Purpose Digital Input #3
Programmable
Digital
Input
20
DO1
General Purpose Digital Output #1
Programmable
Digital
Output
21
DO2
General Purpose Digital Output #2
Programmable
Digital
Output
18
FS
Trigger Output / Function Strobe
Digital
Output
16
DO3
/RC1
Relay Control #1 – FORM
Programmable, Open
Collector, Current protected
Digital
Output
17
DO4
/RC2
Relay Control #2 - TRANSFORMER
Programmable, Open
Collector, Current protected
Digital
Output
6
RI
Remote Inhibit
Short to +12Vdc Pin 15 to
enable output
Digital
Input
8
Sync In
Phase Sync Input
Digital
Input
19
Sync Out Phase Sync Output
Digital
Output
7
TT
Transient Trigger Input
Digital
Input
15
12V
Output, 12Vdc
0.5 A max, current protected
Power
Output
2
GND
Chassis Ground
Ground
n/a
9
GND
Chassis Ground
Ground
n/a
1
RxD
RS232 Receive Data (Rx)
RS232
Input
14
TxD
RS232 Transmit Data (Tx)
RS232
Output
Table 7-2: Auxiliary I/O DB25 Connector Pin numbers and Signals by Signal Name