BBH SMX 12-2 - 4.3.4 Digital outputs; 4.3.4.1 Characteristic data of the basic outputs

Installation manual
HB-37350-810-01-51F-EN SMX Installation manual.docx Page 86 of 234
Version: 50F
4.3.4 Digital outputs
The modules
• SMX10/10A/10R/10AR(/2), SMX11(/2), SMX11-2(/2), SMX12/12ª(/2), SMX12-2/12-2A(/2)
• SMX31/31R/31R-4(/2), SMX32-0(R)/2/D, SMX32-1(R)/2/D
all have basic outputs of identical design.
4.3.4.1 Characteristic data of the basic outputs
The SMX-Serie provides a total of 8 outputs, which can be interconnected individually or in
groups.
Output
Architecture acc. to
EN ISO 13849-1
Comment
Kombination
of 2 relays
Q 4 to Q 5
4
Complete tripping channel in compliance
with architecture category 4 acc. to EN
ISO 13849-1
Q4– Q13
Not safe
Only functional
Q1 _PP und
Q2_PN
4
Complete tripping channel in compliance
with architecture category 4 acc. to EN
ISO 13849-1
Q1_PP
Not safe
Only functional
Q2_PN
Not safe
Only functional
Q3_PP und
Q4_PN
4
Complete tripping channel in compliance
with architecture category 4 acc. to EN
ISO 13849-1
Q3_PP
Not safe
Only functional
Q4_PN
Not safe
Only functional
Q1 – Q4
4
Complete tripping channel in compliance
with architecture category 4 acc. to EN
ISO 13849-1
Y1
Not safe
Auxiliary output
Y2
Not safe
Auxiliary output
The Qx_PP, Qx_PN and Qx- outputs are subjected to a plausibility test in all operating states. In
switched on state the correct function of all outputs is tested with a cyclic test pulse. For this
purpose the output is switched to the corresponding inverse value for a test period TT <500µs
(typically 200 µs) i.e. one pp-output is switched instantaneously to 0 VDC potential, while one pn-
output is switched to 24 VDC potential.
The relay outputs are monitored for plausibility during each switching cycle. The relay outputs
must be switched cyclically and thus tested to maintain the safety function. The switching/test
cycle is determined in dependence on the application.