Kval ON-HD, Operation Manual, Page: 64 / 72

About the Safety Curtain
KVAL ON-HD Operation Manual
3-10
About the Safety Curtain
The
Safety Curtain
provides safety for personnel who enter the defined area when the machine is
active. If any part of an operator’s body is detected in the defined area, the machine stops the
operation.The machine must be reset from the operators station to continue machining.
The
Safety Curtain
is composed of an EZ-Screen emitter and receiver. The emitter has a row of
synchronized light-emitting diodes (LEDs) that send signals to the receiver. The receivers have a
a matching row of synchronized photo detectors that read the signal from the emitter. When the
signal is blocked of
any field,
the machine stops. To continue machining, push the
Start
button
Important:
The EZ-Screen system is aligned at the factory. Do not move the emitter or
receiver modules. This may cause misalignment, if the system is mis
-
aligned the machine will not start
FIGURE 3-10.
Operation of Safety Curtain
If the Field is Broken
If the field is broken, the machine will shut down. This is safety feature performs the same func
-
tion as an Emergency Shutdown (E- Stop). For information on the E-Stop function, see Chapter 2.
To Resume Normal Operation after an Field is Broken
If an E-Stop is activated, use the following procedure to recover, after the cause of the emergency
stop is resolved:
Emitter
Receiver
Emitter
Receiver
Machine in operation
Breaking of any field
stops the machine