Operation; Control Description; Preset Controller Values; Changing Controller Values - NovaTec BC-1 Instruction Manual

6.0 OPERATION

5.1 Control Description

The BC-1 blowback control is connected to an MCS main control to add a blowback feature,
when required. The BC-1 employs a mini-PLC Control. 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.

5.2 Preset Controller Values

The BC-1 controller is preset at the factory with the following values.
FUNCTION
Pulse On-Time
Pulse Off-Time
Number of Pulses
BB Solenoids in Use

5.3 Changing Controller Values

Press the OFF/ON switch for the BLOWBACK CONTROLLER to the "ON" position.
Allow a few seconds for the LOGO! controller to start up.
Using the instruction on the controller under TO CHANGE SETTINGS:
Adjust the number of blowback pulses by changing the BB/Cnt parameter values in the
"Settings" menu of the controller to achieve the desired blowback pulsing for that station.
When the station loading signal is de-energized to the LOGO unit and the OFF/ON switch
is in the ON position, the blowback solenoid will be energized for the number of pulses
set in the BB/Cnt parameter value. Once the blowback cycle is complete, the contact on
the blowback controller wired in series with the station demand level switch would close
allowing the station to begin loading again if the demand level switch were also closed.
The BB/Gap timer controls the OFF time between pulses and the BB/Pls timer controls
the ON time of the pulse, these timers are set at 1.0 and 0.5 seconds respectively and
should not require further adjustmen
BC-1 IM 8 FEB 2018
TIMER
BB/Pls
BB/Gap
BB/Cnt
BB/Sols/B
t.
© 2018 NOVATEC, Inc. All Rights Reserved
FACTORY SETTING
0.5 Seconds
1 Seconds
3 Counts
1
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