Point-Of-Operation Guarding; Safety Distances - Honeywell SYA14 Series Manual

FF-SM Series Installation Manual

Point-of-operation Guarding

IMPROPER POINT-OF-OPERATION INSTALLATION.
• DO NOT allow an operator to stand undetected between the safety mat and the machine
when using FF-SM Series safety mats for point-of-operation guarding.
• Ensure a manual restart function is required before further machine operation can occur.
• Ensure the location of the manual restart function provides the operator with a clear view of
the danger zone.
• Ensure a Programmable Logic Controller cannot override a manual restart function.
Failure to comply with these instructions will result in death or serious injury.
Point-of-operation is defined as that area where a machine performs work (such as cutting,
shaping, boring, or forming) on a material. For point-of-operation guarding the safety mat(s)
and any mechanical guards must be installed so no one can stand undetected between the
mat and the dangerous machine zone. Additional hard guarding, or mats may be required.

Safety Distances

IMPROPER SAFETY DISTANCE
• Calculate safety distance using formula D
⇒ D
is the safety distance OSHA 29 CFR 1910.217; ANSI B11.19-1990
S
⇒ V is the approach speed constant of 63 inches per second
⇒ t
is the response time of the FF-SM safety mat
1
⇒ t
is the stopping time of the machine including interconnected components such as relays,
2
solenoids, and brakes
⇒ C is the additional safety distance (obtained from your local safety agency).
Failure to comply with these instructions could result in death or serious injury.
The safety distance is the minimum distance between the sensing zone and the danger zone.
This distance ensures that the dangerous machine area cannot be reached until the machine
motion has been stopped. The average operator has a reach of about 66 to 84 inches. For
mat control, the safety distance should be increased by the maximum reach of the operator.
Determine the dimensioning and position of the safety mats in such a way that access to the
hazardous parts of the machine is impossible without safety mat activation. The ANSI B11.19
1990 standard provides a formula for the calculation of the minimum safety distance between
the dangerous point and the external edge of a safety mat. Compliance with this formula
ensures machine movement will stop before the operator can reach the dangerous machine
area.
For application help: see Warranty Information
>V(t +t )+C where:
S 1 2
Honeywell • PK 107007-01 EN FR26 GLO 0298 Printed in France 11
Installation