21
12V ELECTRICAL SYSTEM
The following is a description of the 12V electrical system on the
Volu-Matic 500
machine, an electrical
schematic is included in the troubleshooting section. Power comes from the battery through the 20 Amp
circuit breaker to the master switch
4
. When the master switch is turned on, electricity flows through the
switch causing the light to illuminate while providing power to the latching relay and blower relay. With the
emergency stop buttons
A
&
B
pulled out (on) and swing gates closed against the safety switches
2
,
pressing the reset button
3
energizes the latching relay contacts to the closed position allowing power to
flow to the remote control receptacle
5
. When the remote cord switch
35
is moved toward the cord, power
flows to the blower relay’s internal coil. This causes the normally open contacts in the relay to close sending
power to the blower clutch while also providing power to the mechanism relay. When the remote switch is
moved toward the end of the switch housing, power flows to the
internal coils of the blower and mechanism relays. This causes the
normally open contacts in both relays to close sending power to
the respective clutches simultaneously.
At any time that an emergency stop button is pushed in (off) or a
swing gate guard is opened while the machine is operating, power
is de-energized at the latching relay which opens the contacts.
This will stop power flow to the remote control receptacle and relays
which will disengage the blower and mechanism clutches. You will have to pull the emergency stop button out
(on) and/or close the swing gate guard and then push the reset button to re-energize the remote function.
If an emergency stop button is pushed in (off) or a swing gate guard is opened while only the master switch
is on but the machine is not operating, the reset button will have to be pressed once the emergency button
is pulled out (on) or swing gate is closed to energize the latching relay for machine operation. This is also
true for any troubleshooting requirements you may encounter.
NOTE: On older model equipment, the latching relay and reset button are not used. When the master
switch is turned on, power flows to the blower relay and remote receptacle.
35
Remote Cord Switch Housing
Содержание CertainTeed Volu-Matic 500
Страница 6: ...6 Introduction...
Страница 24: ...24 Preventive Maintenance...
Страница 38: ...38 Troubleshooting...
Страница 42: ...42 Parts Drawings...
Страница 57: ...57...
Страница 61: ...61 Preventive Maintenance Record DATE JOB DESCRIPTION PERFORMED BY...