Safety Bus Manual — P/N LS10177-000HI-E:B 02/21/2019 36
SB-ECM Module System Components
3.7 SB-ECM Module
This module can control an automatic extinguishing/release system. The module controls eight (8)
supervised inputs with safety-related functions, four (4) safety related supervised outputs to control
solenoids, two (2) non-safety related supervised outputs to control notification appliances and one
(1)virtual output V15, used to activate the automatic release sequence in embedded mode or as an
internal variable in I/O mode. As to the 8 input channels, the first six are suitable for NO/NC con-
tacts with a max line current of 40mA, while the last two channels are suitable for controlling
NO/NC or conventional smoke detector contacts with a max line current of 130mA. As for the 6
output channels, the first four channels are suitable for controlling solenoid valves or visual/acous-
tic signals with a max current of 500mA and safety-related functions, while the last two channels
are regulate NAC outputs with a max current of 195 mA.
Note: Synchronization of devices between zones or within a zone is not permissible using this mod-
ule.
3.7.1 Technical Specifications
• Number of input channels: 8 individually configurable
• Wiring:
– Inputs
Class B, Style B and Style C
– Outputs (NAC)
Class B, Style Y
– Outputs (REL)
Class B
• Alarm threshold for input channels 1-6: 2 programmable thresholds from 4 to 35mA
• Alarm threshold for input channels 7-8: 2 programmable thresholds from 4 to 120mA
• Short circuit threshold for input channels 1-6: programmable from 4 to 40mA *
• Short circuit threshold for input channels 7-8: programmable from 4 to 131mA *
• Open Circuit threshold for input channels 1-8: ≤1mA
• Input channel test: performed every 30 seconds
• Max current for output channels 9-12: 500 mA
• Short circuit threshold for output channels 9-12: current >0.75-1.5 A
• Open Circuit threshold for output channels 9-12: current <0.5-9.5 mA
• Channel test for outputs 9-12: performed every 3 seconds
• Max current for output channels 13-14: 195 mA
• Max. Line Impedance Channels 13-14: 50 ohms
• Fuse trip current for channels 13-14: >600 mA
• Power supply voltage: 24VDC
• Current consumption in stand by: 159 mA
• Operating temperature:
0 to 49 °C (32 to 120.2 °F)
• Storage temperature:
-55 to 85 °C (-67 to 185°F)
• Max humidity: 0-95% non condensing
• Protection rating: IP30
• Mounting: T35 DIN rail
• Dimensions:
53 x 167 x 100 (W x H x D mm) (2.1” x 6.6” x 4”)
• Weight: approx. 600g (21 oz.)
• Connections: 2.5mm² removable terminal blocks
• Max. Line impedance SLC: 20 ft (6.096 m) in the same room, in conduit
• Max. Line Impedance Input Channels 1-8: 50 ohms
• Ground Fault impedance: </ 500 ohms
• Max distance between two modules: 20 ft (6.096 m) in conduit
*For compliance with UL 864, the short circuit threshold for channels 1-6 should be between 4mA and 35mA. The
short circuit thresholds for channels 7 and 8 should be between 4mA and 125mA
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