BBH SMX 12-2 - 3.2.2 Central expansion modules; 3.2.2.1 SMX31;31 R;31 R-4(;2)

Installation manual
HB-37350-810-01-51F-EN SMX Installation manual.docx Page 39 of 234
Version: 50F
3.2.2 Central expansion modules
3.2.2.1 SMX31/31R/31R-4(/2)
Type designation
Device design
Design of module with the following periphery:
12 Digital inputs
10 Digitale I/Os
2 Pulse outputs
2 Auxiliary outputs
8 Relay outputs (SMX31x)
12 status LEDs for inputs
10 Status-LEDs für I/O
Characteristics of the module:
• Pulse outputs for cross-shorting detection of digital input signals
• External contact monitoring of connected switchgear (EMU)
• Comprehensive diagnostics functions integrated
• Assembly on top hat rail
• SMX 31(/2) – with a total of 10 I/O‘s
• SMX 31R/31R-4(/2) – with a total of 8/4 relay outputs and only 2/6 I/Os.
• The mechanical structure of SMX31R/31R-4(/2) differs from the figure. (see mechanical
data)