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User in put ( inpt ) 31 – Red Lion TSC User Manual

Page 33

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User Input (InPt)

The User Input requires the input to be in its active state for 100 msec

minimum to perform the function. The unit will execute all functions in 100

msec, except the print request function which requires 110 to 200 msec for a

response. A function is performed when the User Input (terminal 7), is used in

conjunction with common (terminal 10).

Note: Do not tie the commons of multiple units to a single switch. Either use a

multiple pole switch for ganged operation or a single switch for each unit.

Transition activated functions do not occur on controller power-up.

Below is a list of the available functions.

PLOC - Program Lock. A low level enables the program disable function

which places the unit in the Protected Parameter Mode. A high level

disables the program disable function.

Note: Front panel disable is possible without using this program lock

function, refer to front panel program disable section.

ILOC - Integral Action Lock. A low level disables the integral action of the

PID computation. A high level resumes the integral action.

trnF - Auto/Manual Transfer. A negative transition places the unit in the manual

(user) mode and a positive transition places the unit in the automatic operating

mode. The output is “bumpless” when transferring to either operating mode.

SPrP - Setpoint Ramp. A low level terminates auto setpoint ramping and the

controller operates at the target setpoint. Terminating auto setpoint

ramping is the same as setting the ramp rate to zero (SPrP = 0.0). A high

level enables the auto setpoint ramp rate.

Note: This does not operate with a profile.

ALrS - Alarm/Timed Event Output Reset. If the alarm option is installed, a

low level resets the alarm/timed event output(s) to their inactive state as

long as the user input is low.

Prnt - Print Request. A low level transmits the print options selected in the

serial communications module (6-SC). If the user input is held low, after the

printing is complete a second print request is issued.

CP - Control Point Select. A high to low transition loads Control Point 2 into the

memory of the controller. The controller now operates with data of Control

Point 2. A low to high transition loads Control Point 1 into the memory of the

controller. The controller now operates with data of Control Point 1.

Note: Control Point data loaded into memory overwrites the existing

data setpoint and optionally the PID gain set. Control Points may

be loaded during profile operation.

P1rH - Profile Run/Pause. A low level pauses any running profile. A high level

allows a paused profile to resume. A low to high transition starts Profile 1, if

no other profile was running.

P1rS - Profile Run/Stop. A low level stops any running profile. A high level

allows any profile to run. A low to high transition always starts profile 1.

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