Control Mode; Table 18 - Control Modes - nvent RAYCHEM Elexant 4010i User Manual

RAYCHEM-AR-H60624-40X0iOpsManual-EN-1905
5.5.1

Control Mode

Figure 58 - Control Mode Setting
Purpose:
To set the control mode for the controller.
Options:
The options are described in the table below:
Control Mode Description
In this mode the controller monitors the tem-
perature of the heat trace circuit and compares
it to the Control Setpoint temperature plus the
On/Off deadband value. The output is turned off if the
control temperature is more than the Setpoint
plus the deadband value otherwise the output
is turned on.
This proprietary algorithm uses the measured
ambient temperature, desired maintain tem-
perature, minimum ambient temperature and
PASC size of the smallest pipe diameter to deter-
mine the optimum duty cycle and cycle period
to maintain the temperature, minimize energy
consumption and prolong the switch life.
This algorithm constantly monitors the
control sensor temperature and adjusts the
output duty cycle proportionally, whenever the
Proportional
temperature falls within the 0% to 100% band.
Note: This mode is incompatible with the
Contactor Output Type.
The output is permanently switched on irre-
Always On
spective of the control temperature.
The output is permanently switched off irre-
Always Off
spective of the control temperature.

Table 18 - Control Modes

Procedure:
Touch the combo box and select the control mode from the list.
Figure 59 - Control Mode
nVent RAYCHEM Elexant 4010i/4020i User Manual
Algorithm Settings
Deadband
Minimum Ambient
Minimum Pipe Diameter
Power Adjust
Proportional Band
None
None
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