Honeywell SYA14 Series, Manual

Page: 587 / 737

107004-15 EN FR26 ROW 0899 Printed in France 53
Figure 4.6 : Connection of the protective equipment outputs
The following reversed connection is recommended for a better failure resistance :
Features OSSD1 & OSSD2 inputs
Type voltage free and without reference potential
Consumption 30 mA/24 Vdc
low level 10 mA max.
high level 19 mA min.
Protections galvanic insulation: 500 Vdc, reversed polarity
4.5.2 TEST output
TEST SEQUENCE AT POWER UP / SETTING ON DELIVERY
•
A test of the protective equipment is automatically done at start up to control the
connection of its outputs to the module terminals. For this reason, it is recommended to use
the same power supply source for the module and the protective equipment (or make sure
power is switched on simultaneously with the same switching device).
•
On delivery, the muting module provides a normally closed contact between terminals
28 and 29. All the above mentioned protective equipment need a normally closed contact
on their test input with the exception of the FF-SCAN, the FF-LS and the FF-SPS4 which
need a normally open contact.
•
The test output can be changed to a normally open contact.
•
If the test output is not used, the detection field of the protective equipment must be
interrupted 100 ms after power up, before restarting the module.
13 14
FF-
20 19
(-) (+
(-) (+
+24Vdc
0V
OSSD
OSSD1
1
0.5A
+24V
POWE
+24Vdc
0V
0.5A
13 14
FF-SRM
20 19
(-) (+)
(-) (+)
1
+24V
POWER
OSSD2
OSSD1