Batching - Siemens Milltronics BW500 Operating Lnstructions

1)

Batching

The batching process, as it relates to the BW500 operation, can be defined as the transfer
of a predetermined quantity of material.
The process supports a count up operation (P560), in that the total (totalizer 5) begins at
zero and increments up to the programmed setpoint (P564). A relay (RL1 through 5)
programmed as the batch setpoint function (P100 = 8) is actuated when the material total
reaches the setpoint. The relay contact acts as an interlock to the material feed to end
the batch.
Another relay can be programmed as a pre-warn alarm (P100 = 7), to alert the process
that batch end is near. The relay is actuated when the material total reaches the pre-
warn setpoint (P567) at some practical value below the batch setpoint. The pre-warn
function is enabled/disabled from the batch process through P566.
For batch operations, the following must be addressed:
• connections
• programming
• operation
1)
Not available on the BW500/L
7ML19985DK05Milltronics BW500 and BW500/L - OPERATING INSTRUCTIONS Page 83