Siemens LMV52 series User Manual

276/327
Building Technologies Basic Documentation LMV5... CC1P7550en
19 O2 trim control with LMV52 and PLL52 22.05.2018
Terminal
marking
Connection
symbol
Safety class Input Output
Description of connection Electrical rating
O2 module
X81
PIN 6
III
˜
Temperature compensation QGO20 (U3) DC [0...2 V], Ri > 100 kς
PIN 5 ˜
Power supply temperature compensation
(G2)
DC [12...18 V], Ra = 20 ς
PIN 4 ˜ ˜
GND (M)
PIN 3 ˜
Thermocouple (B2) DC [0...33 mV], Ri > 100 kς
PIN 2 ˜ ˜
GND (M)
PIN 1 ˜
Nernst voltage (B1) DC [-25...1 mV], Ri > 100 kς
X84
PIN 5 GND
III
˜
Signal reference
PIN 4 CANL ˜
Communication signal
DC U <= 5 V, Rw = 120 ς,
level to ISO-DIS 11898
PIN 3 CANH ˜
Communication signal
PIN 2 12VAC2 ˜
AC supply for O2 module
AC 12 V +10% / -15%, 0...60 Hz,
fuse max. 4 A
PIN 1 12VAC1 ˜
AC supply for O2 module
X85
PIN 5 GND
III
˜
Signal reference
PIN 4 CANL ˜
Communication signal
DC U <= 5 V, Rw = 120 ς,
level to ISO-DIS 11898
PIN 3 CANH ˜
Communication signal
PIN 2 12VAC2 ˜
AC supply for O2 module
AC 12 V +10% / -15%, 0...60 Hz,
fuse max. 4 A
PIN 1 12VAC1 ˜*
AC supply for O2 module
Combustion air / flue gas temperature sensor
X86
PIN 3
III
˜
Shield connection
PIN 2 ˜
Signal reference
PIN 1 ˜
Flue gas temperature sensor input
Pt1000 / LG-Ni 1000
X87
PIN 3
III
˜
Shield connection
PIN 2 ˜
Signal reference
PIN 1 ˜
Combustion air temperature input
Pt1000 / LG-Ni 1000
X89-02
PIN 1 PE
I
˜
Protective earth (PE)
PIN 2 Q5 N ˜
QGO20 heating
PIN 3 Q4 L ˜
QGO20 heating
At AC 120 V +10 % / -15%,
50...60 Hz, Imax. 2.5 A
At AC 230 V +10 % / -15%,
50...60 Hz, Imax. 2.5 A
X89-01
PIN 1 PE
I
˜
Protective earth (PE)
PIN 2 N ˜
Power supply neutral conductors (N)
PIN 3 L ˜
Power supply live conductor (L)
AC 230 V +10 %/ -15%,
50...60 Hz, Imax. 2.5 A

Siemens LMV52 series Specifications

General

Brand	Siemens
Model	LMV52 series
Category	Control Unit
Language	English