Maintenance; Fuse Replacement - Honeywell SYA14 Series Manual

FF-SM Series Installation Manual
IMPROPER ELECTRICAL INSTALLATION
• Each safety mat activation must stop dangerous machine operation within the response time of the
components.
• Clearing the sensing zone must not start dangerous machine operation. When restarting machine
operation, a normal machine control start sequence must be used.
• If electrical power is removed from a machine, its restoration must not initiate dangerous machine
operation; a normal machine control start sequence must be used.
• If a safety mat system is activated, the machine must NOT be able to restart.
• The external safety relays located between the safety outputs and the machine control circuitry must
be monitored.
• In the event of component failure, the machine control circuitry must stop dangerous machine
operation and prevent the next machine cycle activation.
• A Programmable Logic Controller must NOT be able to override a manual restart function.
• As the control unit operates in a automatic restart mode, another part of the safety control circuitry
must keep the latched function engaged.
• To keep the latched function engaged and maintain control reliability, use safety components only.
Do not use a programmable logic controller (PLC).
• Strictly adhere to all electrical connection instructions and local wiring standards.
Failure to comply with these instructions could result in death or serious injury.

Maintenance

POWER APPLIED TO MACHINE CONTROL SYSTEM
Turn off and disconnect power from FF-SM Series safety mat/control unit and machine.
Failure to comply with these instructions could result in death or serious injury.

Fuse Replacement

The control unit is equipped with an emitting and receiving circuit board. Each circuit board is
protected by a power supply fuse. These power supply fuses are rated to protect the
equipment against high over voltage. See figure 4-1 for fuse F1 and F2 locations.
Figure 4-1 Fuse Locations
Fuse F1
Replace fuse as follows:
1. Remove power from safety mat system.
2. Replace blown fuse with new fuse (see order guide).
3. Perform the operational test and inspection to ensure proper functional readiness.
For application help: see Warranty Information
+
-
A1
A2
B1
F2
C1
B2
C2
C4 B3 A4 A5
N(+) P(-)
Test
F1
(1)
Honeywell • PK 107007-01 EN FR26 GLO 0298 Printed in France 53
Inspection and Maintenance
Cable Drum
Fuse F2