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Page 9 of 16

3.3 & 3.4 Alarm Figures

3–4 Alarm

The controller has one alarm output. There are six types of

alarm functions and one dwell timer that can be selected, and

four kinds of alarm modes (ALMD) are available for each

alarm function (ALFN). Output 2 can be configured as an-

other alarm in addition to the alarm output. But output 2 only

provides four kinds of alarm functions and only normal alarm

mode is available for this alarm. When output 2 is used as an

alarm, SP2 sets the trigger point. SP3 sets the trigger point for

Alarm.

process  alarm

sets  absolute  trigger  levels.  When  the

process is higher than SP3, a process high alarm (PV.HI) oc-

curs, and the alarm is off when the process is lower than SP3-

ALHY. When the process is lower than SP3, a process low

alarm (PV.LO) occurs, and the alarm is off when the process

is higher than SP3+ALHY. A process alarm is independent of

the set point.

deviation alarm

alerts the user when the process deviates

from the set point. When the process is higher than SV+SP3,

a deviation high alarm (DE.HI) occurs, and the alarm is off

when the process is lower than SV+SP3-ALHY. When the

process  is  lower  than  SV+SP3,  a  deviation  low  alarm

(DE.LO) occurs, and the alarm is off when the process is

higher than SV+SP3+ALHY. The trigger level of the devia-

tion alarm moves with the set point.

deviation band alarm

presets two trigger levels relative to

the set point. The two trigger levels are SV+SP3 and SV-SP3

for alarm. When the process is higher than (SV+SP3) or lower

than (SV-SP3), a deviation band high alarm (DB.HI) occurs.

When the process is within the trigger levels, a deviation band

low alarm (DB.LO) occurs.
There are four types of alarm modes available for each alarm

function. These are: normal alarm, latching alarm, holding

alarm and latching/holding alarm. They are described as fol-

lows:

Normal alarm: ALMD=NORM

When a normal alarm is selected, the alarm output is de-ener-

gized in the non-alarm condition and energized in an alarm

condition.

Latching alarm: ALMD=LTCH

If a latching alarm is selected, once the alarm output is ener-

gized, it will remain unchanged even if the alarm condition is

cleared. The latching alarm is reset when the RESET key is

pressed after the alarm condition is removed.

Holding alarm: ALMD=HOLD

A holding alarm prevents an alarm when the control is pow-

ering up. The alarm is enabled only when the process reaches

the set point value. Afterwards, the alarm performs the same

function as a normal alarm.

Latching/holding alarm: ALMD=LT.HO

A latching/holding alarm performs both holding and latching

functions. The latching alarm is reset when the RESET key is

pressed after the alarm condition is removed.

Alarm failure transfer

is activated as the unit enters failure

mode. The alarm will go on if ALFT is set for ON and go off

if ALFT is set for OFF. The unit will enter failure mode when

a sensor break occurs or if the A-D converter of the unit fails.

Figure 3.4  Output 2 Process Low Alarm

Figure 3.3  Output 2 Deviation High Alarm

Содержание PCM10005

Страница 1: ...48 60amps 11 520 19 930W 14 75H x 8W PCM10008 480VAC 48 60amps 23 000 39 900W 14 75H x 8W There is no disconnect or heater fusing in this enclosure Heater fusing and disconnect must be supplied by the...

Страница 2: ...g instructions for the TEC 9100 temperature controller 2 Close and secure the door Switch on the enclosure Using the up down pushbuttons on the TEC 9100 controller start out with the temperature set l...

Страница 3: ...Page 3 of 16 1 5 Menu Overview...

Страница 4: ...Page 4 of 16 1 6 Parameter Descriptions page 1 of 2 Indicates Controller Parameter Settings that are not applicable...

Страница 5: ...Page 5 of 16 Parameter Descriptions page 2 of 2...

Страница 6: ...Page 6 of 16 Alarm Wiring...

Страница 7: ...s selected for LOCK then all setup data as well as user data refer to section 1 5 except the set point are locked to prevent them from being changed If ALL is selected for LOCK then all parameters are...

Страница 8: ...quick response to the process if it is properly tuned Control Outputs continued Heat only ON OFF control Select REVR for OUT1 Set PB proportional band to 0 O1HY is used to adjust dead band for ON OFF...

Страница 9: ...The two trigger levels are SV SP3 and SV SP3 for alarm When the process is higher than SV SP3 or lower than SV SP3 a deviation band high alarm DB HI occurs When the process is within the trigger leve...

Страница 10: ...ature is 30 C After power up the process runs like the curve shown below Note When the ramp function is used the lower display will show the current ramping value The ramping value is an artificially...

Страница 11: ...used for control may produce an unstable process The controller will enter failure mode if one of the following conditions occurs 1 SBER occurs due to input sensor break or input current below 1mA if...

Страница 12: ...on as either failure mode or manual control mode is entered Procedures Auto tuning can be applied either as the process is warming up cold start or when the process has been in a steady state warm sta...

Страница 13: ...ower display will show The controller is now in manual control mode indicates output control variable for out put 1 and indicates control variable for output 2 Now you can use the up and down keys to...

Страница 14: ...Page 14 of 16 Table A 1 Error Codes and Corrective Actions...

Страница 15: ...fect com pliance with any applicable specification TEC Temperature Con trollers are warranted to be free from defects in material and workmanship for two 2 years after delivery to the first purchaser...

Страница 16: ...es of our Diverse and Innovative Products Copyright 2015 All Rights Reserved Electric Heating Elements Thermocouples and RTD Assemblies SCR Power Controls Solid State Relays Mechanical Relays Videogra...

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