Set points -4, About set points -4, Set point limits -4 – Hardy HI 2151/30WC Single-Scale Controller User Manual

Page 102: Dead band limits -4

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HI 2151/30WC MANUAL

7-4

(* if ordered)

Parallel BCD board, tri-stated. With 6" cable P/N 0551-
0327, model HI2151/20XX-B2. With 24" cable Prt. # 0509-
0389-02, model HI 2151/30XX-B9. With 60" cable Prt. #
0551-0330, model HI2151/30XX-B5.

Allen-Bradley RIO. Prt. # 0551-0351, model HI2151/
30XX-B8.

PROFIBUS Field Bus Interface. Prt. # 0535-0439, model
HI2151/30XX-B12.

DDE I/O Server, Prt. 0551-0419-01, HI2151/30XX-B14

Setpoint Option Card Prt. # 0551-0288, model HI2151/
30XX-D2

Option slots are labeled on the top circuit board as follows:

READ PANEL LABEL

26 PIN CONN NUMBER

Option 1

J5

Option 2

J4

Output Option Boards may be ordered and installed into these slots as
follows:

BOARD

QUANTITY

OPTION SLOT

Analog

2

1 and/or 2 (When using only 1 board,
position 1 is preferred due to option
cover compatibility)

BCD

1 only

1

A-B RIO

1 only

1 or 2

PROFIBUS

1 only

1 or 2

NOTE:

You can install either the A_B RIO or the Profibus option but you cannot install both
at the same time.

Set Points

About Set Points

The set point value is the target weight or level. It may be set in either
net, gross, ROC*, Total*, or Peak* hold weight units. When entering
this value, the corresponding LED flag will appear on the display. The
operator may toggle this flag to the desired mode by pressing the
MODE button. Refer to the Set point Limits section following installa-
tion for a description of set point limits.

NOTE:

Only works when the ROC, Total, or Peak options are installed in the controller.

Set Point Limits

Dead Band Limits

The dead band value can be set as a positive or negative value. It is
used to prevent relay chatter once the set point is reached.

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