Setup | Pli Window - Pentair raychem ngc-30/uit2 Programming Manual

industrial heat tracing solutions

3.3.10 setuP | PLi WindoW

This window allows you to set the update time when using an PLI. The update time, in minutes,
is used as the time that is waited before polling the sensor(s) for a new temperature on a circuit
after the circuit has turned off. The sensors are continuously polled while the circuit is on.
Fig. 3.16 Setup | PLI window
heater on - When the heating cable is ON, the temperature measurements will be transmitted
from the SES and SPC transmitters to the PLI module/NGC-30 controller approximately every 5 to
11 minutes depending on the SES address. When using 700-TT transmitters, the temperature data
will be polled periodically. The time interval is within minutes and depends on the number of 700-
TT transmitters and the number of connected circuits.
heater oFF - When the heating cable is OFF, the temperature measurements will be transmitted
from the SES, SPC and 700-TT transmitters to the PLI module/NGC-30 controller based on the
configured PLI Update Interval time. The NGC-30 system turns the heater on in the time intervals
defined in the field PLI Update Interval and reads the temperature measurements. Based on these
temperature measurements and the Setpoint, NGC-30 Control System determines whether to
leave the heater On or turn it Off.
If the Update Interval time is set to 10 minutes, the NGC-30 control system turns ON the heater
every 10 minutes.
On time intervals when no additional heat is required is as follows:
• For 700-TT Transmitter ..... 5 seconds
• For SES Transmitter ........Highest SES Address Number for that circuit / 2 + 5 = in seconds
Range: 1-255 Minutes
Default: 10 Minutes
EN-RaychemNGC30UIT2Programming-AR-H58186 02/16 40 / 84