Manual

Safety 4-5
Table 4-1 shows the
Safety Interlock
positions and corresponding modes of operation.
Table 4-1 Safety Interlock Modes of Operation
Interlock
position
Level of
Expertise
User Classification Mode of Operation
(ON)
low Operator normal
(OFF)
high
programmer and
service personnel
caution
The light beacon option, installed on the top right corner of the system, can serve as a
visual warning device, indicating different Interlock status conditions by turning on a
different colored light for each condition. See Table 3-5 for detailed explanations of the
various conditions indicated by each color. These color indications match those for the
SYSTEM STATUS
Indicator on the Control Panel of the system.
Safety Interlock Door Sensors
The Safety Interlock
Door Sensors on Century Series Systems detect if the doors are open or
closed. Depending on Safety Interlock mode, access for certain operations is limited as the
door sensors activate the Safety Interlock System. A key-activated switch operates the Safety
Interlock
System. You can remove the key to avoid any accidental change of Safety
Interlock mode by an unauthorized operator.
On some systems the Light Curtain Option takes the place of the doors and is connected to
the Safety Interlock
sensors. When an object crosses the Light Curtain, the sensors detect it.
For information directly related to the Light Curtain option, refer to Section – 13 Special
Options, of this manual.
Safety Interlock Recovery Light
The Interlock light is located on the Control Panel to the left of the
SYSTEM STATUS
indicator lights (see Figure 2-1, Table 3-4 and Table 3-5). When the light is ON, you can
safely access the inside of the dispensing area. If the light is OFF, accessing the inside of
the dispensing area can cause injury and a non-recoverable interlock condition will occur.
A non-recoverable interlock condition means that the system has lost master references.