Honeywell SYA14 Series Manual page 600

Figure 4.14 : Use of the SSD output for failure alarm :
+24Vdc
2.5A Lamp
indicator
32 31
SSD
+24V
Monitoring
OUTPU
T 0V
0V
4.8 Connection of man/machine interfaces
4.8.1 Inputs for push-buttons P/B1 & P/B2 (terminals 15-16 & 17-18)
The Normally Open contacts of two push-buttons P/B1 and P/B2 must be connected to
terminals 15-16 and 17-18. P/B1 and P/B2 inputs are active if a pressure is applied on the 2
push-buttons.
OVERRIDE PUSH-BUTTONS LOCATION
•
Access to these push-buttons shall be restricted to the people allowed to intervene in
case of problem. The operators shall not be able to use these push-buttons which shall
be kept under lock and key (2 key selector switches may be used as an alternative).
•
Moreover, the authorized person shall have a wide visibility on the installation and
permanently check that nobody enters the dangerous area while he is performing the
over-ride sequence.
Failure to comply with these instructions could result in death or serious injury.
OVERRIDE FUNCTION CONDITIONS
• The override function is allowed if the detection field of the protective
equipment is interrupted and if the muting mode is selected (see chapter 2.4.6
Guard-only mode).
• Contacts of the two push-buttons must be closed within a time frame set
between 8 ms and 1 s. They must remain closed for 100 ms as a minimum.
66
30
SSD
FF-SRM
107004-15 EN FR26 ROW 0899 Printed in France