AEC Colortronic MSH Series 2039 - Manual (Page 11)

C Series Granulators Functional Description 11 of 53
2-4 Safety Features
Zero Speed Sensor
The zero speed sensor detects the motion of the rotor assembly. The sensor is interlocked to
the control circuits of the two machine jackscrews. If the rotor is turning, then the jackscrews
should not operate. Check the zero speed sensor periodically for proper operation.
Safety Switches
Safety switches at all access covers are wired into the starter control circuit. The machine
cannot be started when these parts are open. However, for safety purposes, the machine
should be disconnected from the power lines by a disconnect switch or by removing the plug
from its receptacle. Check all safety switches periodically for proper operation.
Figure 1 shows some of the bolts, interlocks, and limit switches you may need to adjust
during maintenance. Refer to this diagram while performing the maintenance procedures.
Safety Tags
A set of metal plates is attached to the machine to warn of potential danger.