Photoeyes And Proximity Switches; How To Do A Test Of Emergency Stop Mechanisms; Figure 18 Speed Sensor (Photoeye) On Some Machines; Proximity Switches These Are Examples. Your Machine Can Look Different - Milnor MWF63C Series Maintenance Manual

Routine Maintenance
3.2.6

Photoeyes and Proximity Switches

Figure 18. Speed Sensor (photoeye) on Some Machines
View of Cylinder Pulley and Speed Sensor
Figure 19.

Proximity Switches These are examples. Your machine can look different.

1 Station Press
Typical Proximity Switch
3.2.7

How to Do a Test of Emergency Stop Mechanisms

This test applies to machines that have one or more stop mechanisms in addition to the Stop but-
ton ( ). Do this test at the intervals given in the maintenance summary.
Definitions:
3-wire circuit a series electrical circuit on a Milnor
chine can operate. If a switch in the circuit opens, machine movement stops and the operator
alarm (a buzzer and a display message) comes on. When you push the start button (
closes the 3-wire circuit, which stops the operator alarm and lets the machine operate.
emergency stop mechanism a manual control that opens the 3-wire circuit when a person or
object operates the control. Examples - emergency stop button, kick plate, pull cord.
32
BNWUUH01.C11 0000351752 A.5 B.21 A.16 11/15/21 3:20 PM Released
Centrifugal Extractor
→... Area that must be clean. Remove contamination with a soft cloth. If
the area is hard to reach, use a cloth on the end of a wood dowel or
metal rod. If necessary, use a safe cleaning agent.
BNWUUH01.C05 0000335566 A.5 B.21 A.4 2/23/21 11:58 AM Released
®
Legend
1... Cylinder pulley (cone)
2... Bracket attached to bearing
housing.
3... Speed sensor (photoeye). The sen-
sor sees the holes in the cone and
gives pulse data to the controller. If
dust collects on the lens, this data
can be incorrect. An error will oc-
cur and operation will stop.
Shuttle Conveyor
Legend
machine that must close before the ma-
), this
Pellerin Milnor Corporation