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Service Mode, Chapter 3
WATLOW Series 733/734 Service Manual
Parameter Value Range Factory Default Appears If:
AUt1 0 - 3 0
AUt2 0 - 3 0 Hardware is present
Pb1 0 to 999°F/0to 555·C 25°F
rE1 0.00 to 9.99 repeats/minute 0.00 Pb1 0
rA1 0.00 to 9.99 minutes 0.00 Pb1 0
Ct1 1 to 60 seconds 5 Pb1 0
Pb2 0 to 999°F/0 to 555°C/0 to 999 Units 25°F Hardware is present
rE2 0.00 to 9.99 repeats/minute 0.00 Hardware is present
Pb2 0
rA2 0.00 to 9.99 minutes 0.00 Hardware is present
Pb2 0
Ct2 1 to 60 seconds 5 Hardware is present
Pb2 0
StP 1 to 3 3
LooP On or OFF OFF
nnS On or OFF OFF
Service
3
OFF
OFF
Display alternates
between parameter and
programmed data.
Table 3 -
Service Mode
Parameters and
Descriptions.
Ct2
5
StP
LooP
nnS
Cycle Time 2: Expressed in seconds, time for a controller to complete one ON/
OFF cycle for Zone 2. Time between successive turn ons. This parameter only
appears if you have a dual zone control, and Pb2 0.
Range: 1 to 60 seconds Default: 5
Menu Steps: Determines the maximum number of steps allowed in a menu.
Range: 1 to 3 Default: 3
Loop Fail Check: This parameter checks for an open or shorted sensor and
enables the error code function. This parameter only functions in the proportional
control mode (Pb1 0 /ON/OFF).
Range: On or OFF Default: OFF
Melt Cycle: Enable or disables the melt cycle function. When enabled and the
process value is less than 212°F/100°C, the corresponding zone output will go to a
percent power duty cycle.
Range: On or OFF Default: OFF
Service Mode
Use this page as a master copy for your Series 733/734 Service mode parameters.
Do not enter any values here; make photocopies instead.