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Despatch/Watlow 1500 Control Instruction Manual
Profile Mode
This section of the manual provides details on programming
the Watlow 1500 in the Change Data (
CHG DATA
) mode,
the Change Parameters (
CHG PARA
) mode and Guarded
Access. Refer to the Watlow 1500 manual for more details.
Change Data Mode
When the Watlow
CHG DATA
LED is lit, the processor is in
the change data mode. While in this mode, the
programming steps can be entered into the processor.
There are three step types:
C
Set Point (SP)
C
Jump Loop (JL)
C
Wait (WT)
Halt Conditions
The Watlow 1500 can HALT in three ways, when the:
C
processor encounters a Blank Step in the program,
C
RUN/HALT
key is pressed while the program is
running,
C
remote hold input is shorted.
While in the HALT condition, the Watlow 1500 actively
maintains set points and event output conditions which
existed at the time the processor was halted.
If you do not want the hot or humid conditions to be retained
at the end of a programmed halt, add a step just before the
Blank Step [End of Program] to establish stand-by set points
near ambient with all Event Outputs OFF.
