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IMR01H01-E4

17

7.6 Batch Setting Function

The batch setting function enables the setting of the parameters
selected within one memory area simultaneously to the same
value for all of the channels. The set values (SV) as well as the
parameters set for each channel can be simultaneously set.

5.6.2 Batch setting (P. 13)

The set value (SV) corresponding to any unused channel
is also subjected to the batch setting.

All channels of all memory area can not be
simultaneously set as the same value.

7.7 Alarm Function

Alarm function sets up the alarm state when the measured value
(PV) or the deviation reaches the alarm set values. In the alarm
state, the alarm output is output, and the alarms are used to drive
the equipment danger signals or the safety equipment.

• 

The output specifications are the relay contact output.

• 

The alarm output condition can be determined by the type of
alarm action

1

, the output destination

1

 and each alarm set

value

2

.

1

 Specify when ordering

2

 

Setting item of the parameter setting mode

"#

Alarm action type

 

OFF 

*

(Alarm status where the alarm set value is set to plus)   

Low 

High 

Deviation high alarm 

OFF 

ON 

Low 

High 

*

(Alarm status where the alarm set value is set to minus) 

ON 

*

(Alarm status where the alarm set value is set to plus) 

Deviation low alarm 

OFF 

ON 

Low 

High 

*

(Alarm status where the alarm set value is set to minus) 

OFF 

ON 

Low 

High 

Deviation high/low alarm 

OFF 

ON 

ON 

Low 

High 

Band alarm 

OFF 

OFF 

ON 

Low 

High 

Process high alarm 

OFF 

ON 

Low 

High 

Process low alarm 

ON 

Low 

High 

OFF 

SV low alarm 

ON 

Low 

High 

OFF 

SV high alarm 

OFF 

ON 

Low 

High 

(      : SV            : Alarm set value) 

"#

Alarm output

The alarm output (factory set value) of the alarm 1, alarm 2 and
alarm 3 are as follows.

Alarm 1

OR

 output of the alarm 1 in all channels

(Energized)

Alarm 2

(Option)

OR

 output of the alarm 2 in all channels

(Energized)

Alarm 3

(Option)

OR

 output of the alarm 3 in all channels

(Energized)

"#

Alarm

 

differential gap

If measured value (PV) is close to the alarm set value, the alarm
relay contact may repeatedly turn on and off due to input
fluctuations. By the differential gap, repeated turning ON and
OFF of the relay contact can be prevented.

 

Alarm differential gap: Temperature input 2 (2.0) 

°

C [

°

F] 

Voltage input 2.0 % 

Low alarm 

Low 

High 

OFF 

ON 

Differential gap 

Low alarm set value 

SV 

High alarm 

Low 

High 

OFF 

ON 

High alarm set value 

SV 

Differential gap 

"#

Alarm

 

hold action

 (Specify when ordering)

This hold action is used to make alarm invalid until the PV exits
once from the alarm region by ignoring the alarm state even if
the PV is in the alarm state when the power is turned on.

The alarm hold action is activated when not only the
power is turned on, but also the following conditions

• 

When the RUN/STOP is changed to the RUN mode

• 

When the SV is changed

• 

When the memory area (control area) is changed

Example:

 

W ith alarm hold action 

W ithout alarm hold action 

Alarm hold area 

Time 

Deviation 

Measured value (PV) 

PV 

Alarm set value 

SV 

OFF ON 

Time 

PV 

SV 

OFF ON 

ON 

Alarm status 

Alarm set value 

Alarm status 

Deviation 

Measured value (PV) 

7.8 Heater Break Alarm (HBA) Function

The heater break alarm (HBA) function is used to detect the
current flowing through the load (heater) by using a current
transformer (CT), to compare the current thus detected to the
heater break alarm set value, and thus to produce a heater
break alarm when any of the following causes occurs.

5.3 SV Setting & CT Monitor Mode (P. 7),
5.4 Setup Setting Mode (P. 8)

"#

Occurrence of heater break alarm

When heater current does not flow (Heater break,
malfunction of the control device, etc.):

Alarm is issued when the input value of the current transformer
is below the heater break alarm set value with the control output
turned on. However, no alarm may be normally issued when the
control output is turned on for less than 2 seconds.

When heater current goes following (welded relay contact,
etc.):

Alarm is issued when the input value of the current transformer
is above the heater break alarm set value with the control output
turned off. However, no alarm may be normally issued when the
control output is turned off for less than 2 seconds.

Содержание MA900 Series

Страница 1: ...to avoid electric shock by operating personnel All precautions described in this manual should be taken to avoid damage to the instrument or equipment All wiring must be in accordance with local codes and regulations All wiring must be completed before power is turned on to prevent electric shock instrument failure or incorrect action The power must be turned off before repairing work for input br...

Страница 2: ...arm G Deviation high low alarm 4 W SV low alarm H Process high alarm 8 Alarm 2 option 3 N No alarm J Process low alarm A Deviation high alarm K Process high alarm 4 B Deviation low alarm L Process low alarm 4 C Deviation high low alarm M FAIL alarm D Band alarm P Heater break alarm CTL6P 5 6 E Deviation high alarm 4 S Heater break alarm CTL12 5 6 F Deviation low alarm 4 V SV high alarm G Deviation...

Страница 3: ...8 1 91 8 Mounting bracket 96 96 Unit mm Rubber option Up to 4 mounting brackets can be used Panel cutout For mounting of the MA900 MA901 panel thickness must be between 1 to 10 mm When mounting multiple MA900 MA901s close together the panel strength should be checked to ensure proper support If the MA900 MA901s have waterproof dustproof options protection will be compromised and not meet IP65 by c...

Страница 4: ...size M3 6 Recommended tightening torque 0 4 N m 4 kgf cm 3 2 Terminal Configuration MA900 9 Input 3 4 RTD RTD1 B B A 15 14 13 RTD2 B B A 18 17 16 RTD3 B B A 21 20 19 RTD4 B B A 24 23 22 Thermocouple TC1 15 14 TC2 18 17 TC3 21 20 TC4 24 23 Voltage 15 14 IN1 18 17 IN2 21 20 IN3 24 23 IN4 1 Power Option 6 Contact input RUN STOP Memory area transfer 40 39 DI2 DI1 DI4 42 41 43 DI SET 5 Alarm output Rel...

Страница 5: ...8 59 60 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 1 2 3 5 4 6 7 10 9 With communication or contact input function 5 10 9 8 4 3 RTD and voltage inputs Not isolated between each input channel With heater break alarm function 1 Not isolated between each channel 2 Relationship between CT input and channel number see 7 8 Heater Break Alarm HBA Function P 18 4 PARTS DESCRIPTION This chapter describes various dis...

Страница 6: ...channels SET key SET key SET key SET key SET key SET key SET key SET key SET key SET key SET key SET key SET key LbA Lbd AL1 AL2 AL3 P I d Ar Pc db SVrL CH E SV Setting CT Monitor Mode P 7 To PV SV monitor mode SET key Set value SV setting Memory area transfer Current transformer 1 monitor Current transformer 2 monitor SET key SET key SET key SV ArE CT1 CT2 Press the R S key while pressing the SET...

Страница 7: ...ge Factory set value Temperature input 0 C F or 0 0 C F Voltage input 0 0 Up to eight memories per channel can be set with one set value SV assumed to be one memory The set values SV corresponding to all of the channels within the same control area can be simultaneously set as the same value No setting can be changed when 1 Lock is selected by the lock level 1 Memory area transfer Selects the memo...

Страница 8: ...eferring to monitor value from the current transformer 2 Used only for three phase Displayed only for when the heater break alarm Z 168 is selected as alarm 2 Setting range 0 0 to 100 0 A OFF HBA2 function OFF Factory set value OFF No setting can be changed when 1 Lock is selected by the lock level 1 HBA is not available on a current output Set HBA2 set value to a value about 85 of current transfo...

Страница 9: ...an be changed when 1 Lock is selected by the lock level 1 Only the relevant parameter corresponding to the cannel set to MonI or ConT in used unused channels of the parameter setting mode can be scan displayed Lock level 1 Set to the control area now in operation to restrict parameter setting changes by the key operation Setting range 1 Items other than SV and alarms ALM1 to ALM3 0 Unlock 1 Lock 2...

Страница 10: ...99 digits Factory set value Temperature input 50 C F or 50 0 C F Voltage input 5 0 No setting can be changed when 1 Lock is selected by the lock level 1 Not displayed when FAIL alarm or control loop break alarm is selected for alarm 1 Alarm 2 ALM2 Set the ALM2 set value Displayed when any one of the deviation process and SV alarms is selected as the alarm 2 Setting range Process alarm SV alarm Sam...

Страница 11: ...he lock level 1 In case of MA901 this setting item is not provided Minus setting results in overlap Setting change rate limiter Set the amount of set value SV change per 1 minute when the SV is changed Setting range 0 0 1 to span min OFF Setting change rate limiter OFF Factory set value OFF No setting can be changed when 1 Lock is selected by the lock level 1 The set value SV while the setting cha...

Страница 12: ...2 Press the DOWN key three times to change to 1 The display changes to 100 When another area set value SV is changed without changing control area When changing the set value SV corresponding to channel 2 in memory area 3 from 150 C to 100 C with the memory area set to memory area 1 1 Press the SET key in PV SV monitor mode state to transfer to SV setting CT monitor mode 2 Press the R S key to lig...

Страница 13: ...ory area transfer The set values SV in other memory areas are simultaneously set to the same value without changing the control area When changing the set values SV corresponding to all of the channels in memory area 2 from 0 C to 300 C with the control area corresponding to memory area 1 1 Press the SET key in PV SV monitor mode state to transfer to SV setting CT monitor mode 2 Press the CH key D...

Страница 14: ...n RUN STOP RUN RUN STOP with Key Operation STOP is not displayed dSTP STOP STOP STOP KSTP SToP After the contact is closed it takes a short time until the action of this device is actually selected Therefore pay attention to this delay time if the device is used together with a sequencer etc 0 5 seconds shortest Only SToP is displayed at the time of STOP in the state without RUN STOP transfer by c...

Страница 15: ...otuning AT The AT function automatically measures computes and sets the optimum PID and LBA constants If the AT function is activated the optimum PID constants concerning the set value SV in the control area and the LBA setting time can be automatically set Limit cycle system is adopted This function is activated power ON during temperature rise and or when control is stabilized from any process s...

Страница 16: ...g items can not be set in MA901 7 4 Setting Change Rate Limiter Function The setting change rate limiter functions so as to change the set value SV gradually toward the set value after being changed This limiter sets how much the set value is changed upward or downward per minute 5 5 Parameter Setting Mode P 10 Example 7 5 Scan Display Function The scan display function is for automatically select...

Страница 17: ... alarm set value the alarm relay contact may repeatedly turn on and off due to input fluctuations By the differential gap repeated turning ON and OFF of the relay contact can be prevented Alarm differential gap Temperature input 2 2 0 C F Voltage input 2 0 Low alarm Low High OFF ON Differential gap Low alarm set value SV High alarm Low High OFF ON High alarm set value SV Differential gap Alarm hol...

Страница 18: ...ering width within the LBA setting time For reverse action This alarm is produced when the measured value PV does not rise beyond the LBA triggering width within the LBA setting time Control loop break alarm deadband LBD The control loop break alarm may be produced by disturbances other heat sources even if the control system is not abnormal In such a case an area in which no alarm is produced can...

Страница 19: ...tric shock always turn off the power before replacing the sensor WARNING Flashing Flashing PV display Input range Effective input range Input range α α The range to be displayed differ depending on the input type or the setting limit α PV flashing display PV display unit Overscale Underscale α PV flashing display 9 REMOVING THE INTERNAL ASSEMBLY Usually this instrument is not necessary to remove t...

Страница 20: ...00 times Data storage period Approx 10 years Alarm function Number of points 3 points Option 2 points Alarm type Specify when ordering Deviation high alarm FAIL alarm Deviation low alarm Deviation high alarm with hold action Deviation high low alarm Deviation low alarm with hold action Band alarm Deviation high low alarm with hold action Process high alarm Process high alarm with hold action Proce...

Страница 21: ...F N A5 199 9 to 400 0 C 1 2 T 01 T 199 9 to 100 0 C 1 2 T 02 100 0 to 200 0 C T 03 Thermocouple input and RTD input Type Range Code 0 0 to 350 0 C T 04 199 9 to 752 0 F 1 2 T A1 T 100 0 to 200 0 F 2 T A2 100 0 to 400 0 F T A3 0 0 to 450 0 F T A4 0 0 to 752 0 F T A5 W5Re 0 to 2000 C W 01 W26Re 0 to 2320 C W 02 0 to 4000 F W A1 0 to 1300 C A 01 0 to 1390 C A 02 PL II 0 to 1200 C A 03 0 to 2400 F A A...

Страница 22: ...nels Memory area No CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 Set value SV Control loop break alarm Control loop break alarm deadband Alarm 1 Alarm 2 Alarm 3 Proportional band Integral time Derivative time Anti reset windup Cool side proportional band Overlap deadband Setting changing rate limiter Used unused of channels Item Display Set value RKC INSTRUMENT INC HEADQUARTERS 16 6 KUGAHARA 5 CHOME OHTA KU TO...

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