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Thermcraft XST-3-0-36-3V User Manual

Page 138

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Understanding the Ordering Code

Installation and Operation Handbook

A-6

2408 and 2404 Controller

Notes:

1. Not available with profibus controllers

2. PDS heater break detect will transmit the power demand to a TE10S solid state relay and

read back a heater break alarm

3. PDS current monitoring will transmit the power demand signal to a TE10S solid state

relay and read back load current and open and short circuit alarms

4. Setpoint limits: include the decimal position required in the displayed value. Up to one

for temperature inputs, up to two for process inputs

5. An external 1% current sense resistor is supplied as standard. If greater accuracy is

required, a 0.1% 2.49

Ω can be ordered as part number SUB2K/249R.1

6. Only available with Profibus controller

7. Not available with 8 segment programmer


PDS is a proprietary technique for bi-directional transmission of analogue and digital
data between instruments.

Mode 1: provides logic heating to a TE10S (fitted with option PDS1) solid state
relay with feedback of a general load fault alarm.
Mode 2: provides logic heating to a TE10S (fitted with option PDS2) solid state
relay with feedback of load current and two alarms: solid state relay failure and
heater circuit failure.

Range min and Range max: Thermocouple and RTD sensor inputs will always display
over the full operating range shown in Sensor input table. For these inputs, the values
entered here are the low and high setpoint limits. For process inputs, the values are the
display scaling. corresponding to the minimum and maximum input values.

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