Load On Individual Contacts; Fan Motor Contactor; Alarm Output; Ignition Transformer - Siemens LMV51 Series Basic Documentation

Load on individual contacts

Fan motor contactor

Alarm output

Ignition transformer

Fuel valves (gas)

Fuel valves (oil)

Cable lengths

Cross-sectional areas

Fuses used in the
LMV5... basic unit
204/301
Siemens Building Technologies
HVAC Products
• Nominal voltage
• Nominal current
• Power factor
• Nominal voltage
• Nominal current
• Power factor
• Nominal voltage
• Nominal current
• Power factor
• Nominal voltage
• Nominal current
• Power factor
• Nominal voltage
• Nominal current
• Power factor
Mains cable
CFN cable
Analog cable
Flame detectors
CAN bus
When a certain cable length is exceeded, the actuators must be powered by a trans-
former located near the actuators.
For details, refer to «Power supply for LMV5... system».
The cross-sectional areas of the mains supply lines (L, N, PE) and, if applicable, the
safety loop (SLT, shortage of water, etc.) must be sized for nominal currents in agree-
ment with the selected external primary fuse.
The cross-sectional areas of the other cables must be sized in agreement with the in-
ternal unit fuse (max. 6.3 AT).
Min. cross-sectional area
Cable insulation must satisfy the requirements of the relevant temperature and envi-
ronmental conditions.
The CAN (bus) cables have been specified by Siemens BT and can be ordered as ac-
cessory items.
Other types of cables may not be used. Otherwise, the EMC characteristics
of the LMV5... system will become unpredictable!
F1
F2
F3
1) If the cable length exceeds 50 m, no additional loads may be connected to the
status inputs
Basic Documentation LMV5...
14 Technical data
AC 230 V +10 % / -15 %, 50-60 Hz
AC 230 V +10 % / -15 %, 50-60 Hz
AC 230 V +10 % / -15 %, 50-60 Hz
AC 230 V +10 % / -15 %, 50-60 Hz
AC 230 V +10 % / -15 %, 50-60 Hz
max. 100 m (100 pF / m)
max. 100 m (100 pF / m)
max. 100 m (100 pF / m)
refer to data sheets CC1N7714
total length max. 100 m
(single- or multi-core to VDE 0100)
6.3 AT DIN EN 60 127 2 / 5
4 AT DIN EN 60 127 2 / 5
4 AT DIN EN 60 127 2 / 5
1 A
cosϕ > 0.4
1 A
cosϕ > 0.4
2 A
cosϕ > 0.2
2 A
cosϕ > 0.4
1 A
cosϕ > 0.4
1)
CC1N7719
2
0.75 mm
CC1P7550en
13.08.2004