Honeywell SYA14 Series Manual page 582

PROTECTIONS
All outputs are protected against overload, short-circuits and reversed polarity with following
exceptions :
•
The test output is not protected against overloads and short circuits. Overloads and
short-circuits may damage this output, however the module will still operate correctly
provided the detection field of the protective equipment is interrupted after power up (see
chapter 4.5.2 Test output).
•
OSDs STATUS and RESTART STATUS outputs are not protected against short circuits.
Short circuits may damage these outputs, but the module will still operate correctly (see
chapter 4.8.4 OSDs STATUS and RESTART STATUS outputs).
Power supply sources, POWER & OUTPUT
4.3
The power supply voltage of the muting module and its inputs/outputs is 24 Vdc ± 15%. The
module is protected against reversed polarity. The EN 61496-1 European standard makes
mandatory the galvanic insulation of category 4 safety components as defined by the EN
954-1 European standard. An integrated DC/DC converter guarantees the galvanic
insulation of the module (500 Vdc). Therefore, no specific power supply source is
necessary.
Power consumptions are as follows :
" +24V POWER" : 6W max . for the module and all inputs
" +24V OUTPUT " : 6W to 60W max. for the module and all outputs
FUSES PROTECTION
The module supply input is protected by an internal fuse (which cannot be replaced by the
user) but all inputs must be protected by an external 0.5 A fuse connected on terminal 1
(+24 V POWER), and all outputs must be protected by an external 2.5A max. fuse
connected on terminal 32 (+24 V OUTPUT).
POWER SUPPLY SOURCE
•
The protective equipment, the muting module must be powered with the same power
supply source. If the supply voltage of the protective equipment is different than the muting
module supply voltage, a common switching device must be used to switch on power of
both equipment (see chapter 4.5.2 Test output).
•
The power supply source connected on the terminal +24 V OUTPUT must be protected
against shutdowns greater than 5 ms (the muting response time is 5 ms only).
48 107004-15 EN FR26 ROW 0899 Printed in France