Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
8 Technical data 28.01.2015
8.1.4.11. Input H6
Multifunctional input/gas pressure switch (X5)
- Digital input
- Safety extra low-voltage for potential-free low-voltage contacts
Voltage with contact open DC 5 V
Voltage with contact closed DC 2 mA
- Cable length 120 m
Observe cross-sectional area of wires!
(Refer to chapter Cross-sectional area
sensors)
8.1.4.12. Input H7
Multifunctional input/air pressure switch (X4)
- Digital input
- Safety extra low-voltage for potential-free low-voltage contacts
Voltage with contact open DC 5 V
Current with contact closed DC 2 mA
- Cable length 10 m
8.1.4.13. Input for reset (EK)
Reset button (X4/X30)
Digital input Active upon short-circuit after low-voltage
GND
- Safety extra low voltage for potential-free low-voltage contacts
Voltage with contact open DC 5 V
Current with contact closed DC 0.5 mA
- Line length 1 m
8.1.5 PWM fan/Hall connection facility
Warning!
Mandatory requirement: Observe separate Siemens specification
Spezifikation_LMU5x_TrafoGebläse_de_VX.Y.doc
PWM fan/Hall connection facility (X8)
- PWM output
- Safety extra low voltage
Voltage with output open DC 24 V
Current Max. DC 15 mA
- Line length 3 m
- Basic control frequency (adjustable) 800…4800 Hz (default 4096 Hz)
- Hall input, fan speed
Voltage with output open DC <1 V
Input resistance 37 kOhm
Frequency range
- Duty cycle
0…900 Hz
30…70 %

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English