Siemens LMV5 Series - Page 175

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Siemens Building Technologies Basic Documentation LMV51... CC1P7550en
HVAC Products 10 Description of the connection terminals 01.10.2003
Description of the connection terminals (cont’d)
Terminal desig- nation
Connection symbol
Input Output
Description Electrical rating
PIN6 x Reference ground (PELV)
PIN5 x Communication signal (CANL)
PIN4 x Communication signal (CANH)
DC U
← 5 V, Rw = 120 Ω,
level to ISO-DIS 11898
PIN3 x
PIN2 x
AC power supply for actuators / display and
operating unit AZL...
AC 12 V +10 % / -15 %,
50...60 Hz,
fuse max. 4 A
X50
PIN1 x Shield connection (functional earth)
PIN6 x Reference ground (PELV)
PIN5 x Communication signal (CANL)
PIN4 x Communication signal (CANH)
DC U
← 5 V, Rw = 120 Ω,
level to ISO-DIS 11898
PIN3 x
PIN2 x
AC power supply for actuators / display and
operating unit AZL...
AC 12 V +10 % / -15 %,
50...60 Hz,
fuse max. 4 A
X51
PIN1 x Shield connection (functional earth)
PIN4 x Functional earth
PIN3 x AC power supply from transformer to LMV51...
system
AC 12 V +10 % / -15 %,
50...60 Hz
PIN2 x Reference ground (PELV)
X52
PIN1 x AC power supply from transformer to LMV51...
system
AC 12 V +10 % / -15 %,
50...60 Hz
Temperature / pressure controller
PIN5 x Functional earth for shield connection
PIN4 x Reference ground
PIN3 x Temperature sensor input
Pt / LG-Ni 1000 (Input 4, TEMP)
PIN2 x Line compensation temperature sensor PT100
X60
PIN1 x Temperature sensor input PT100
(input 1, TEMP)
PIN5 x Functional earth for shield connection
PIN4 x Reference ground
PIN3 x Current input for temperature / pressure signal
(input 2, TEMP / PRESS INPUT 4...40 mA)
DC 0...20 mA
PIN2 x Voltage input for temperature / pressure signal
(input 2, TEMP / PRESS INPUT DC 0...10 V
DC 0...10 V
X61
PIN1 x Power supply for temperature / pressure
transmitter
approx. DC 20 V
max. 25 mA
PIN5 x Functional earth for shield connection
PIN4 x Reference ground
PIN3 x Current input for setpoint or load (input 3,
SETPOINT INPUT)
DC 0...20 mA
PIN2 x Voltage input for setpoint or load (input 3,
SETPOINT INPUT)
DC 0...10 V
X62
PIN1 x Power supply for setpoint changeover approx. DC 24 V
max. 2 mA