Honeywell SYA14 Series, Manual

Page: 312 / 737

Connections and Setup FF-SM Series Installation Manual
38 Honeywell
•
PK 107007-01 EN FR26 GLO 0298 Printed in France For application help: see Warranty Information
Internal Auxiliary Contacts (normally closed contact)
(see figure 3-4)
IMPROPER SYSTEM PERFORMANCE
•
Comply with local safety requirements when designing machine control circuitry and all
control elements that affect safety.
•
Install two independent relay contacts into machine control stop circuit controlled by FF-SM
Series safety mat.
•
Use two independent stop circuit safety relays with mechanically linked contacts to reliably
detect a welded contact.
Failure to comply with these instructions could result in death or serious injury.
Always use two safety output contacts from the control unit for machine shutdown. The
normally closed contact A1/A2 is also a safety contact. This safety contact may be used to
relay the stopping information to the machine control circuitry, indicate the safety equipment
output status, or provide a redundant complement (secondary) to the main safety stop chain
system.
Figure 3-4 Internal Auxiliary Contact Connection
FF-SM
control unit
Signalling
(relay status)
A2
A1
K1 K3
K3
K2
Phase
(DC+)
Neutral
(DC-)
NO P/B
K1
K2
K3
Fuse
(1)
K3
(1)
K2
FSD
(1)
K1
FSD
FF-SM
control unit
B2
C4
B3
B1
C2
Optional test
input
(or jumpered)
C1
internal
fuse
A4
A5
OR
Single channel
machine control circuit
Phase
(DC+)
Neutral
(DC-)
Dual channel
machine control circuit
(recommended circuit)
Phase
(DC+)
Neutral
(DC-)
Fuse
K1
K2
K3
Fuse
K1
K2
K3
Fuse
K1
K2
K3
Signalling
(relay status)
A2
A1
See page 42 for full size schematic.
(1) RC (220
Ω
+ 0,22
µ
F) for AC interfaces or varistors for DC interfaces
Minimum of 10 mA through the internal auxiliary contact; additional resistor may be used with
programmable logic controller (PLC) to reach this minimum value.