© NOVATEC, Inc. 2013 All Rights Reserved
VL-VLP IM 4-12-2013
9
No-Load Alarm Horn
Alarm Horn Silencer
8- ADJUSTING the LOADER CONTROL
The VL and VLP series
loaders from NOVATEC
employ a Siemens brand, model LOGO! Mini-PLC
Control for loading functions. The control is housed
in a rugged enclosure and is factory programmed for
functions related to vacuum loading.
NOTE: The user may adjust certain parameters of
the control to fine tune their loader’s operation, but
changing settings other than
those listed can damage
control operation.
The control is equipped with a small LCD screen that displays operating and programming
prompts, plus pushbuttons to aid in selecting parameters and making changes. A No-Load alarm
horn is located on the side of the enclosure along with a silence button.
Instructions listed here are repeated on the control face for ease of use.
8.1 TO CHANGE LOADING PARAMETERS
Press ESC key.
Select SET PARAM and press OK.
Use arrow buttons to select parameter from this list.
Press OK. Make changes by selecting desired digit.
Increase or decrease setting with up/down arrows.
When complete, press OK. Press ESC twice to exit.
8.2 PARAMETERS EXPLANATION
Motor-on Time (B3 T)
, measured in seconds, is the amount of time the vacuum motor will run to
load material into the loader’s vacuum chamber. Too little time will result in insufficient loading
and will shorten motor life with too many start/stop cycles. Too much time will pack the loader full
of material, prematurely blinding the filter and possibly clogging the conveying line. This setting
should be adjusted over the course of several normal loading cycles to ‘just fill’ (but not overfill)
the loader’s vacuum chamber. NOTE: VLP series powder loaders include an extended body to
house the cartridge filter(s). Loaded material should not be allowed to be filled up into this
extended hopper area. It is intended only as a housing for the filter cartridges(s), not a hopper for
collecting loaded material.
Dump Alarm Time (B4 T),
measured in seconds, is the pause time between the completion of
Motor On Time and movement of the discharge flapper. This time setting drives the No-Load
alarm feature by determining if material was actually loaded and dumped, but prevents false
alarms from slow moving material discharge. This setting may be increased if nuisance alarms
occur from slow moving material (IE: fluffy regrind) that is typically slow to evacuate the loader. It
may be decreased if the No-Load alarm is too slow to respond to your material supply needs
(IE: frequent shortages of material flow).
PARAMETERS:
Motor-on Time
B3 T
Dump Alarm Time B4 T
Dump Time
B5 T
Blowback Count B11
Prop Valve A Time B16 T
Prop Valve B Time B18 T
