P
RO
V
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™ PD6310-WM NTEP Certified Pulse Input Batch Controller
Instruction Manual
42
Controller Operation
The default configuration displays batch total on
Line 1, and a selection of batch preset, grand total,
and batch count on Line 2.
When in pause or stop mode, the display will alternate
the numeric value with the run status on Line 1 and
the display label for Line 2.
The controller has up to 4 relays on board (and 4
available with an external expansion module) which
are used to either control the batch process in single
or multi-stage batch control, or as alarms that will be
active when the batch process is running. A 4-20 mA
output option is also available for retransmitting the
process variable analog.
Watch Batch Control Video at
www.predig.com/videos/KN6Y6R0I1OE
Default Batch Control Operation
The following describes the operation of the three
front panel operating keys as programmed with
default settings.
START Button
Press the START button to begin a new batch
process. Press the START button to resume a batch
that has been stopped.
BATCH Button
Press the Batch button to access the Preset (batch
amount) menu. Program the batch with the arrow
keys, and confirm with the Enter key.
STOP Button
Press the STOP key once during a batch to pause.
Press the STOP key while paused to stop and cancel
the batch. Press the STOP key while in stop/ready
mode to cycle the lower display parameters: preset,
grand total, and batch count (or other parameter
assigned to the lower display).
•
Only STOP Button Enabled if a Batch is
Running.
During a batch process, only the
pause/stop functions are operational, other
buttons are deactivated.
Batch Control Operation
Example
The following example shows how two stage batch
control functions with a PD6310. This setup will
establish a 55 gallon preset for the batch, with a main
valve (high flow) that will close at 50 gallons, and a
trickle valve (low or restricted flow) that will close at
55 gallons. After the batch, the preset will be changed
to 80 gallons.
Two-Stage Batch Control Setup
Using Relays 1 & 2
The following table shows the parameters as they
appear within the
Setup
menu entry
relay
.
Parameter
Setting
Function
Relay
Assign
Press Enter to enter the relay
assignment parameters.
Asign1
total
Assign relay 1 to batch total
control.
Asign2
total
Assign relay 2 to batch total
control.
Precls
Total
Press Enter to access pre-
close
selection for multi-stage
control.
Precls
Yes
Yes to enable a pre-close
value for relay 2.
Yes
00005..0
Set the pre-close value to 5 for
closing the valve controlling
relay 2 five gallons before
reaching the preset.
…
Assignment for optional relays
3-8.
Rly 1
relay
Select relay 1 setup.
Act 1
rly 1
Configure activation of relay 1.
Act 1
Auto
Always set to Auto for batch
control function.
Rly 1
Preset
Set the preset value for batch
control.
Preset
00055.0
Set 55 gallons as the preset.
…
Setup for optional relays 3-8.
The operation of relay 2 has already been assigned
for multi-stage control pre-close and will not appear
as a selection in the
relay
menu.
If only one stage batch control was desired, with one
relay for control, then one would set the assignment
of relay 2,
assign2
, to off, rate, or grand total.
The following pages show an illustration of how the
above settings control the batch operation. The
display assignment shown is the default.
