Rice Lake 320IS Plus Intrinsically Safe Digital Weight Indicator - Installation Manual User Manual

Page 42

320IS Plus Installation Manual

HYSTER

number

GROSSP, NETSP, and RELSP setpoint types: Specifies a band around the setpoint
value that must be exceeded before the setpoint, once off, can trip on again.

PREACT

OFF
ON
LEARN
FLOW

GROSSP, NETSP, and RELSP setpoint types: Allows the digital output associated
with a setpoint to shut off before the setpoint is satisfied to allow for material in
suspension.

The ON value adjusts the setpoint trip value up or down (depending on the TRIP
parameter setting) from the setpoint value.

The LEARN value can be used to automatically adjust the preact value after each
batch. LEARN compares the actual weight at standstill to the target setpoint value,
then adjusts the preact by half of the difference after each batch.

FLOW preact uses the change in weight over time too anticipate when the preact
weight value will be reached.

PREVAL

number

GROSSP, NETSP, and RELSP setpoint types: Specifies the preact value for setpoints
with PREACT set to ON or LEARN. Depending on the TRIP setting specified for the
setpoint, the setpoint trip value is adjusted up or down by the preact value.

PREVAR

PREADJ
PRESTA
PREBAN
PRECNT

GROSSP, NETSP, and RELSP setpoint types: Specifies the preact value for setpoints
with PREACT set to LEARN or FLOW.

PREADJ variable sets what percentage of error correction applied each time a preact
adjustment is made (default is 50%)

PRESTA variable is timeout for PREACT LEARN value. For setpoints set to LEARN or
FLOW, PRESTA specifies the time (in 0.1 second intervals) to wait for standstill before
adjusting the preact value. PREACT is not recalculated if standstill is not achieved
(default is 0)

PREBAN defines a band value that will prevent the PREACT from becoming skewed
as a large amount of products falls into the scale at the end of a filling cycle (default is
0)

PRECNT is PREACT LEARN interval. For setpoints set to LEARN or FLOW, PRECNT
specifies the number of batches after which PREACT is recalculated. A default value
of 1 specifies that PREACT will be recalculated after batch cycle.

RELNUM

1–8

RELSP setpoints: Specifies the number of the relative setpoint. The target weight for
this setpoint is:

• For +RELSP, the value of the relative setpoint plus the value (VALUE parameter) of
this setpoint

• For –RELSP, the value of the relative setpoint minus the value of this setpoint

• For %RELSP, the percentage (specified on the VALUE parameter for this setpoint)
of the relative setpoint

BATCH

OFF
ON

GROSSP, NETSP, and RELSP setpoint types: Specifies whether the setpoint is used
as a batch (ON) or continuous (OFF) setpoint.

PSHACC

OFF
ON
NQUIET

GROSSP, NETSP, RELSP, PAUSE, DELAY, and WAITSS setpoint types: Specify ON
to update the accumulator and perform a print operation when the setpoint is
satisfied. Specify NQUIET to update the accumulator without printing.

PSHPRN

OFF
ON
WAITSS

GROSSP, NETSP, RELSP, PAUSE, DELAY, and WAITSS setpoint types: Specify ON
to perform a print operation when the setpoint is satisfied; specify WAITSS to wait for
standstill after setpoint is satisfied before printing.

SETPTS Menu

Parameter

Choices

Description