Honeywell SYA14 Series, Manual

Page: 588 / 737

54 107004-15 EN FR26 ROW 0899 Printed in France
PROTECTIONS
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.
REVERSED POLARITY
This output is protected against reversed polarity, but the module cannot detect a reversed
polarity on the test input of the protective equipment. In such a case, the SSD and OSDs
outputs remain open and the manual restart of the module is impossible. It is recommended
to check correct wiring of the test output by checking the status of the test LED of the
protective equipment. If this connection is made correctly and if no failure is detected, the
SSD output switches ON and the RESTART LED flickers to indicate that manual restart is
necessary (see figure 4.6 Connection of the test output and timing diagram).
Figure 4.7 : Connection of the test output and timing diagram
Features TEST output
Type voltage free and without reference potential
Switching capacity 16 mA/24 Vdc
Voltage drop < 1 Vdc
Protections galvanic insulation : 500 Vdc, reversed polarity
+24Vdc
0V
FF-SRM
TEST
(+) (-)
ESPE
Test
28 29
+ -
power supply
TEST output
OSSDs
SSD
RESTART
LED
indicator
the module is
in test mode
the module
needs to be
restarted
225 ms