Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
8 Technical data 28.01.2015
8.1.4.4. Inputs B3/B38
Sensor B3/B38 (X5)
- Resistance value NTC 10k
- Cable length 10 m (when connecting a thermostat to
the input for the DHW sensor, high-quality
thermostat contact material is required
(e.g. gold-plated contacts), since signal
voltage at this input is DC 5 V)
8.1.4.5. Inputs BX1/BX2/BX3
Sensor inputs BX1…BX3 (X5)
- Resistance value NTC 10k (QAZ36…, QAD36…)
NTC 20k (flue gas sensor)
Pt1000 (optional for collector sensor and
flue gas sensor)
- Cable length 120 m
Observe cross-sectional area of wires!
(Refer to chapter Cross-sectional area
sensors)
8.1.4.6. Input B9
Sensor B9 (X5)
- Resistance value NTC 1k
Refer to specification QAC34…
- Cable length 120 m
Observe cross-sectional area of wires!
(Refer to chapter Cross-sectional area
sensors)
8.1.4.7. Input H1
Multifunctional input/pressure sensor (X6)
- Output voltage LMS14... DC 15 V ±5%
DC 5 V ±5%
- Current Imax. 10 mA each input
- Input voltage LMS14... DC 10 V
- Analog input Safety extra low-voltage
- Operating range DC 0…10 V
- Input resistance >100 k
- Digital input
- Safety extra low-voltage for potential-free low-voltage contacts
Voltage with contact open DC 15 V
Voltage with contact closed DC 1.5 mA
- Cable length 10 m

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English