Instruction Manual

Safety 2-15
CAUTION! Do NOT use the Interlock OFF mode during normal operation. Use OFF mode
only when servicing or programming the dispensing system.
2.10.1.1.1 ON Mode
When the Interlock is ON
(I) and a dispensing program is running, opening the front doors stops all
dispensing motion and all position references are lost. This Interlock shutdown condition is indicated by a
red System Status Indicator LED on the Control Panel (Figure 2-7) and by a red light on the Light
Beacon. For more information, see 2.10.1.4 Non-Recoverable Interlock Shutdown.
2.10.1.1.2 OFF Mode
When the Interlock is OFF
(0), it is in BYPASS mode. Both the yellow Light Beacon light and yellow
System Status Indicator LED (Figure 2-7) are ON when the Interlock is OFF. When the Interlock is in
BYPASS mode, opening the front doors WILL NOT stop Dispensing Head motion. The BYPASS mode
should only be used for servicing or programming the dispensing system.
2.10.1.1.3 Interlock Warning Tag
This optional tag (see Figure 2-8) can be used to warn operators and service technicians that the Interlock
safety feature has been bypassed. Please contact Asymtek for further information.
DANGER
SAFETYSHIELD
INTERLOCK
BYPASSED
Figure 2-8 Optional Interlock Warning Tag
2.10.1.2 Interlock Door Sensors
The Interlock Door Sensors detect the door status (open or closed). Depending on the Interlock mode,
access for certain operations is limited as the Door Sensors activate the Safety Interlock System.
On some systems, the Light Curtain option replaces the doors. The Light Curtain uses an emitter and a
receiver to detect obstructions. When an object crosses the Light Curtain, these sensors trigger the
Interlock System. For more information, refer to 3.8.11 Light Curtain.