MASTERTRACE
E.1
Appendix E Freeze Protection
Introduction
Freeze protection and process control are the two most
commonly used applications of MasterTrace
TM
heat-tracing
controllers. In process control, the control of each heat-
tracing point requires its own temperature measurement.
While in freeze protection, one temperature measurement
at a particular spot, called ambient temperature, is used to
control all heat-tracing control points.
Special software in MS10/MR100 has been developed
to meet customers’ various application needs. It provides
MS10/5, Nextron’s multi-point heat tracing controller, the
capability of being used in either freeze protection, or proc-
ess control, or freeze protection/process control mixed ap-
plication.
Additional Setpoint/Measured Messages
Two setpoint messages and one measured message are
created to give customers the flexibilty to program their
desired applications. They are:
(1) NUM OF AMB SENSE HTRS (msg. S3-11)
This message appears on both ML100 and MR100. Its
selectable choices are: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, Master
1, Master 2, Master 3, Master 4, Master 5, Master 6,
Master 7, Master 8, Master 9, Master 10, Remote 1,
Remote 2, Remote 3, Remote 4, Remote 5, Remote 6,
Remote 7, Remote 8, Remote 9, Remote 10.
If NUM OF AMB SENSE HTRS = 0, the MS10 module
will be a standard MS10. All 10 heaters on the module use
their respective RTD sensors for temperature measurements.
This is a typical process control application.
If NUM OF AMB SENSE HTRS = 1, RTD1 on the
MS10 will be the local ambient RTD. Heater 1 on the MS10
will use the local ambient RTD as its temperature sensor.
Heater 2~Heater 10 will use RTD2~RTD10 as their
respective temperature sensors.
If NUM OF AMB SENSE HTRS = 2, RTD1 on the
MS10 will be the local ambient RTD. Heater 1 and Heater
2 will use the local ambient RTD’s temperature measurement
as their temperature measurements. Heater 3~Heater 10 will
use RTD3~RTD10 as their respective temperature sensors.
This is a freeze protection/process control mixed application.
......
If NUM OF AMB SENSE HTRS = 9, RTD1 on the
MS10 will be the local ambient RTD. Heater 1~Heater 9 on
the MS10 will use the local ambient RTD’s temperature
measurement as their temperature measurements. Heater 10
will use RTD10 as its temperature sensor.
If NUM OF AMB SENSE HTRS = 10, RTD1 on the
MS10 will be the local ambient RTD. Heater 1~Heater 10
on the MS10 will use the local ambient RTD’s temperature
measurement as their temperature measurements. This is a
freeze protection application.
If NUM OF AMB SENSE HTRS = Master 1, RTD1
on the MS10 will be the global ambient RTD. Heater 1 on
the MS10 will use the ambient RTD as its temperature sensor.
Heater 2~Heater 10 will use RTD2~RTD10 as their
respective temperature sensors. Also, the MS10 will
broadcast the global ambient RTD temperature measurement
every 5 seconds through serial port 2.
If NUM OF AMB SENSE HTRS = Master 2, RTD1
on the MS10 will be the global ambient RTD. Heater 1 and
Heater 2 on the MS10 will use the global ambient RTD’s
temperature measurement as their temperature
measurements. Heater 3~Heater 10 will use RTD3~RTD10
as their respective temperature sensors. Also, the MS10 will
broadcast the global ambient RTD temperature measurement
every 5 seconds through serial port 2.
......
If NUM OF AMB SENSE HTRS = Master 9, RTD1
on the MS10 will be the global ambient RTD. Heater 1~
Heater 9 on the MS10 will use the global ambient RTD’s
temperature measurement as their temperature
measurements. Heater 10 will use RTD10 as its temperature
sensor. Also, the MS10 will broadcast the global ambient
RTD temperature measurement every 5 seconds through
serial port 2.
If NUM OF AMB SENSE HTRS = Master 10, RTD1
on the MS10 will be the global ambient RTD. Heater
1~Heater 10 will use the global ambient RTD’s temperature
measurement as their temperature measurements. Also, the
MS10 will broadcast the global ambient RTD temperature
measurement every 5 seconds through serial port 2.
If NUM OF AMB SENSE HTRS = Remote 1, Heater
1 on the MS10 will use the global ambient RTD temperature
measurement received from MS10 or MR100 as its
temperature measurement. Heater 2~Heater10 will use
RTD2~RTD10 as their respective temperature sensors.
If NUM OF AMB SENSE HTRS = Remote 2, Heater
1 and Heater 2 on the MS10 will use the global ambient
RTD temperature measurement received from MS10 or
MR100 as their temperature measurements. Heater 3~Heater
10 will use RTD3~RTD10 as their respective temperature
sensors.
......
If NUM OF AMB SENSE HTRS = Remote 9, Heater
1~Heater 9 on the MS10 will use the global ambient RTD
temperature measurement received from MS10 or MR100
as their temperature measurements. Heater 10 will use
RTD10 as its temperature sensor.
If NUM OF AMB SENSE HTRS = Remote 10, Heater
1~Heater 10 on the MS10 will use the global ambient RTD
temperature measurement received from MS10 or MR100
as their temperature measurements.
Содержание MASTERTRACE
Страница 1: ...MASTERTRACE TM OPERATOR S MANUAL HEAT TRACING CONTROL ...
Страница 51: ...MASTERTRACE 5 15 Chapter 5 Operation Figure 5 13 MR100 for Windows CE Group Interface Module RearView ...
Страница 54: ...MASTERTRACE Chapter 7 Networking Modules 7 2 Figure 7 1 MASTERTRACE System Network ...
Страница 87: ...D 2 MASTERTRACE Appendix D Typical Wiring Diagrams MS 2DXH0 MS 2DIN2 MS 5ADXH0 ...
Страница 88: ...MASTERTRACE D 3 Appendix D Typical Wiring Diagrams MS 5ADIN2 MS 5ATXH0 ...
Страница 89: ...D 4 MASTERTRACE Appendix D Typical Wiring Diagrams MS 10ADIN2 MS 10ADXH0 ...
Страница 90: ...MASTERTRACE D 5 Appendix D Typical Wiring Diagrams MS 10ADIN2X MS 10ADIN2T ...
Страница 91: ...D 6 MASTERTRACE Appendix D Typical Wiring Diagrams Driving Contactors Serial Communication 1 ...
Страница 92: ...MASTERTRACE D 7 Appendix D Typical Wiring Diagrams Serial Communication 2 ...
