Watlow 12LS Controller - Manual (Page 67)

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4.6 RAMP AND SOAK OPTION
The ramp and soak option turns the 12LS into a powerful batch controller. Along with the power
comes a certain amount of complexity. In general, the features that are not as likely to be used
have been set to default to a non-intrusive condition. For example, if there is not a requirement for
digital inputs as triggers, they will be ignored by the profile.
Some planning is required to set up a successful profile and the Profile Setup Guide should be
copied and used in configuring ramp and soak profiles. All the loop parameters should be entered
before starting on ramp and soak. If possible, test all loops for stability and control before
beginning ramp and soak operation.
In the ANAFAZE 12LS the RAMP AND SOAK OPTION allows up to 12 profiles to be specified,
each containing a maximum of 20 segments. The 12 profiles are assigned letters A through L and
are independent of the loops.
Profiles are set up by their letter name and subsequently assigned to a loop. The same profile can
be assigned to any number of loops.
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¦ NOTE : Care should be taken with digital inputs and ¦
¦ outputs since these are specifically assigned to a ¦
¦ profile. For example, if input 1 is used to start ¦
¦ profile A, it will start that profile on all loops ¦
¦ that use profile A. ¦
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A channel is put into ramp and soak mode by assigning it a profile letter from A to L. Likewise, a
channel is returned to normal manual/auto status by assigning it NONE.
The profiles are edited from the password-protected RAMP & SOAK menu by profile letter.
From this menu the user may create a profile from scratch or copy another profile for editing.
Event outputs may be specified as NONE or 1-9, corresponding to the 9 available digital outputs.
The ready segment contains an event state (ON or OFF) for each of these 9 output pins. The
default for each is OFF. All digital outputs function in an "OR" configuration and may be multiply
defined in various profiles. If any profile segment has turned the output on it will be on. Only
when all sources set the output off will it be turned off.
Triggers may be specified as NONE or 1 through 8, corresponding to oneof 8 available digital
inputs.
All times are entered in the same units: either hours and minutes or minutes and seconds. The time
format is selected from the GLOBALS menu. All time variables are then understood to be in the
same units, although there is no explicit display of such. For either time base, segment times from
000:01 to 999:59 may be entered. If using hours and minutes, this provides a range of 1 minute to
over 41 days. Total profile time can stretch up to 2.28 years although profile time remaining can
only be displayed up to 999 hours and 59 minutes.