Nordson Encore XL Powder, Manual

Page: 56 / 155

© 2021 Nordson Corporation
1607027-01
5-4 Operation
Transfer Pump Manual Purging
If a transfer pump becomes clogged during operation, purging the pump may clear it.
See Figure 5-1. Turn the Purge Control selector switch (8) to the Pump Purge position
while the pump is on. Purge air is applied to the pump as long as the switch is in the
purge position.
Powder Level Sensor Operation
Hopper Operation
See Figure 5-1. When the Powder Source selector switch (10) is set to Hopper, the lance
is moved down into the hopper until the hopper proximity sensor on the lift cylinder is
activated and stops the lance above the fluidizing plate. When the level of powder falls
below the level sensor, a delay timer (field-adjustable) is started.
When the delay timer runs out, the virgin transfer pump is turned on to refill the hopper.
When the level sensor detects powder, the virgin transfer pump is turned off. If the level
sensor detects no powder for greater than 3 minutes (field-adjustable), the low powder
alarm is turned on. Refer to the Setup section for instructions on setting the timers.
Box Operation
When the Powder Source selector switch (10) is set to Box, the system lowers the lance
assembly into the box until the level sensor “sees” powder. As the powder is used, the
level sensor automatically lowers the lance into the box until the box proximity sensor on
the lift cylinder is activated and stops the lance. If the level sensor detects no powder for
greater than 3 minutes (field-adjustable), the low powder alarm is turned on.
Silencing the Low Powder Alarm
Turn the Purge Selector switch (8) to Gun Purge momentarily to silence the low powder
alarm buzzer.
Startup
WARNING: Allow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
Make sure all settings in the
Setup
section of this manual have been completed before
starting up the system for the first time.
1. Turn on power and air to the feed center, if not already on.
2.
Turn on the afterfilter exhaust fan.