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Glossary, Terminology – Watlow Series 920 Microprocessor-Based Ramping Control User Manual

Page 67

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Glossary

This glossary includes general thermal system control terms.

ACCESS( ):

Actual display data:

Alarm:

ALTYP1 :

ALTYP2:

Antireset:

Automatic Prompts:

AUTOSTART

AUX1 :

AUX2:

A1H:

Al

L :

A2H:

A2L:

CAL:

In the SETUP menu of the Series 920, an ACCESS number (0,
1, 3,5)
must be selected to

enter

the personality of your Series

920 into the CALIB, PID, MANUAL, and SPCLFUNC parame-

ters.

Displayed information which gives the operator/programmer
real or "actual” data, i.e., actual process temperature. See

“Programmed display data.”

A condition generated by the Series 920, indicating that the

process has exceeded or fallen below the limit point.

Present only when AUX1 = AL and DIP switch #7 is ON.
Determines whether the alarm type for Auxiliary Output 1 will

be a process alarm or a deviation alarm.

Present only when AUX2 = AL and DIP switch #7 is ON.
Determines whether the alarm type for Auxiliary Output 2 will

be a Process alarm or deviation alarm.

Control feature that inhibits automatic reset action outside of

the proportional band.

Data entry points where a microprocessor-based control

“prompts” or asks the operator/programmer for information

input.

One of six step types under the PROGRAM menu of the Series

920 that can be programmed to automatically start at a certain

time, depending on the DAY, HOUR, and MIN parameter
settings.

This parameter detemines whether Auxiliary Output 1 will be

an alarm or event output for the Series 920. Not displayed if

DIP switch #7 is ON.

This parameter

detemines whether Auxiliary Output 2 will be

an alarm or event output for the Series 920. Not displayed if

DIP switch #7 is ON.

When AUX1 = AL, the Series 920 will display this parameter

representing the high process alarm or high deviation alarm for
Alarm 1.

This parameter represents the low process alarm or low

deviation alarm for Alarm 1 of the Series 920. Displayed only
when AUX1 = AL.

Represents the high process alarm or high deviation alarm for

Alarm 2 of the Series 920. Displayed only when AUX2 = AL.

The low process

alarm or low deviation alarm for Alarm 2 of the

Series 920. Displayed only when AUX2 AL.

An offset of the process variable. This number is added to the
value that the system derives. The final result is used for the
set point as well as a front panel indication.

WATLOW Series 920 User’s Manual

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