Siemens LMV5 Series Technical Instructions

Error
Code
Diag.
Code
Device Display Meaning for the LMV5x System Corrective Action
7D
Excessive voltage value or wrong polarity current measurement
input 2 (terminal X61)
7E
Excessive voltage value or wrong polarity voltage
measurement input 3 (terminal X62)
7F
Excessive voltage value or wrong polarity current measurement
input 3 (terminal X62)
80 Fault during internal muliplexer test PT100 sensor
81 Fault during internal multiplexer test PT100 line
82 Fault during internal multiplexer test PT100
90 Max. number of synchronization failures exceeded
91 Wrong CRC with synchronizations object
92 Wrong CRC with synchronizations object
93 Main loop counter does not agree with basic unit
96 Fault during multiplexer test
97 Paraccess with FINISH unsuccessful
9B Fault PageAccess, invalid access status
9C Fault voltage monitor test
9E Fault during readout of PDO message
A0 XP smaller than min. value
A1 XP larger than max. value
A2 TN smaller than min. value
A3 TN larger than max. value
A4 TV smaller than min. value
A5 TV larger than max. value
A6 Parameter outside the permissible range
A7
Inadmissible
Selection aux
Sensor Cold Start
Inadmissible selection of the auxiliary sensor
When using the auxiliary temperature sensor for cold
start, a pressure sensor or temperature transmitter must
be selected at input 2 (terminal X61) via parameter
Sensor Select (PressSensor, TempSensor)
B0 Red/Inv fault with float variables
B1 Red/Inv fault of a Red/Inv variable
B2 Fault during key value check
B4 Fault in fault routine
B5 Unplausible software interrupt
LMV5
Load
Controller
Module
Internal Fault
Load Controller
If fault occurs sporadically, reduce electrical noise.
If fault occurs continuously, replace LMV5.
If fault occurs sporadically, reduce electrical noise.
If fault occurs continuously, replace LMV5.
Internal Fault
Load Controller
Internal Fault
Load Controller
Fault with Base Unit (LMV5) Internal Load Controller
A6
LMV5
Load
Controller
Module
If fault occurs sporadically, reduce electrical noise.
If fault occurs continuously, replace LMV5.
A6
A6
LMV5
Load
Controller
Module
Internal Fault
Load Controller
1) Check wiring and sensor. Re-wire or replace sensors
if necessary.
2) Use shielded cable on sensor wiring.
3) Make sure that sensor wiring is not run next to high
voltage AC wiring.
4) If the diagnostic code indicates excessive voltage,
check input with meter. Trace voltage source.
Fault with Sensors Connected to Internal Load Controller, in Base Unit (LMV5)
Section 7 Page 47 SCC Inc.
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Siemens LMV5 Series Specifications

General

Brand	Siemens
Model	LMV5 Series
Category	Control Systems
Language	English