
Page 68
Milltronics SF 500 - INSTRUCTION MANUAL
7ML19985CN01
mmm
mm
Batc
hing
Operation
Once the SF 500 relays are connected to the process logic and it is programmed, the SF
500 is ready for totalizing the batch and stopping the process when the batch setpoint is
reached. The batch operations start, pause, resume, and cancel are controlled externally
by the process control (e.g. PLC)
Place the unit in the RUN mode.
Press
until the batch screen is displayed.
Start running the batch.
The display will show the rate of material flow and the batch total, as well as the batch
setpoint. If pre-warn is used, relay contact is open.
When the batch total reaches the pre-warn setpoint, if programmed, the alarm event is
removed and the assigned relay contact is closed.
The process continues. When the batch total reaches the batch setpoint, the alarm event
is displayed and the assigned relay is actuated (contact opened). Typically the relay
contact would be integrated into the batch control logic to end the process.
When the next batch is to be run, pressing
and then
on the local keypad, or
providing a momentary contact closure across an auxiliary input (programmed as batch
reset, P270 = 8), sets the alarm display and resets the batch total to zero, and the relay
contact to its closed state.
Pre-act Function
If repetitive batches are being run, the pre-act function (P568) can be enabled to
automatically trip the setpoint relay before or after the batch setpoint is reached in order
to assure best batch accuracy.
Or, in manual mode, enter a set value to cause the batch setpoint to pre-act at a designed
accumulation.
Rate
0.00 kg/h
SP:
20.000
Batch
0.00 kg
Rate
123.4 kg/h
SP:
20.000
Batch
17.00 kg
ALM 1
Rate
123.4 kg/h
Batch
20.00 kg
ALM 12
Rate
0.00 kg/h
SP:
20.000
Batch
0.00 kg
Note:
The batch totalizer can be viewed as a read-only parameter (931-05), using
single Parameter access through any programmed communication port.
e.g. relay 2 is programmed for batch
setpoint, P100-2=6
e.g relay 1 is programmed for pre-warn,
P100-1 = 5
Содержание Milltronics SF 500
Страница 1: ...Instruction Manual September 2003 SF 500 milltronics ...
Страница 6: ...iv mmmmm Table of Contents ...