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Passwords (PASS ConF)

opps

Operator password (0 to 9999).

Tcps

Technician password (0 to 9999).

SAdr

Slave Address from 1 to 247

Communication Configuration (Comm Conf)

BAud

Baud Rate: 0- 1200

1- 2400

2- 4800

3- 9600

4- 19200

Prty

Parity

0- none

1- ODD

2-EVEN

StPb

Stop Bit

0- 1 stop bit

1- 2 stop bit

Manufacturer’s Calibration Page (PASS CAL) - Factory Set

Explanations

Firstly, the control form must be PID in order for this tuning method to operate.

  PID  coefficients

 save  to 

memory.

  parameter  is 

changed

 t

  PID  coefficients

 save  to 

memory.

  parameter  is  changed

 t

If  the  tunn  parameter  is 
Stun or At.St, step response 
tuning  is  selected.  When 
t h e   d e v i c e   i s   f i r s t  
energized, the actual value 
is  compared  to  the  set 
value.  If  the  set  value  is 
greater  than  the  actual 
value, the process output is 
enegized until the

start value+((set value)/2)

 

is  reached.  The  process 
output is reduced to 0% and 
the device ensures that the 
temperature  has  begun  to 
fall.  The

 

are calculated and

d

  If  the  tuning  is 

completed  successfully, 
the  tunn

 from Stun to NO or At.St  o  Atun depending on the original choice. 

If the set value is less than 
the  actual  value  and  the 
cooling PID is selected, the 
process output is energized 
until the

start

 

value-((set

 

value)/2)

 

is  reached

The  process 

output is reduced to 0% and 
the device ensures that the 
temperature  has  begun  to   
rise.  The

 

are calculated and

d

  If  the  tuning  is 

completed successfully, the 
tunn

 

from Stun to NO or At.St  o  
Atun  depending  on  the 
original choice.
During tuning, the set value 
can  not  be  changed.  Step 

response  is  canceled  without  changing  the  PID  set  values  when  any  of  the  following  conditions 
applies: the heating PID is canceled during Heating step response; when the cooling PID is canceled 
during Cooling step response; when there is a sensor break error or when the step response tuning 
operation can not be completed within 8 hours (the AT LED flashes. The error can be cleared with the 
“SET”  button).  If  the  power  to  the  device  is  removed  and  reapplied,  the  device  carries  out  step 
response tuning again.

Firstly, the control form must be PID in order for this tuning method to operate.

The user can decide at any 
time  to  use  this  tuning 
method  by  selecting  Atun 
or  At.St  for  the  tunn 
parameter  in  the  run  list. 
After  changing  the  set 
value,  if  the  difference 
between the newly defined 
and  former  set  values  is 
g r e a t e r   t h a n   t h e  
proportional band

+/-(scale  x  P-Ht)/1000 

if 

heating  or  heating/cooling 
or

 +/-(scale x P-CL)/1000

 

if  cooling,  the  contoller 
will automatically start this 
function.

In the event that the actual value moves outside the set value by  

+/-Strn

 3 times while the device is 

executing the PID control, the Attn parameter becomes YES and tuning is started.
If the Attn parameter is YES, the device begins tuning from the point where it stands at that moment. If 
the heating and cooling PIDs are selected together, or if only the heating PID is selected, Heating Limit 
Cycle is performed; if only the cooling PID is selected Cooling Limit Cycle is carried out. If the Limit 
Cycle operation can not be completed within 8 hours, tuning is cancelled and the Attn parameter 
becomes NO. The PID parameters remain as they were before this failed session.
If Heating Limit Cycle is being done, tuning is performed according to 

set-((set temperature)/4),

 if  

cooling Limit Cycle is being done, tuning is performed according to  

set+((set temperature)/4)

 .

 At the end of tuning the Attn parameter becomes NO and the PID parameters are saved to memory.
If  a  sensor  break  error  occurs,  the  tuning  operation  is  paused  until  the  sensor  connection  is  re-
established. When the sensor connection returns to normal, the tuning operation is recommenced. If 
the Limit Cycle tuning operation can not be completed within 8 hours the tuning operation is cancelled 
(the AT LED flashes. The error can be cleared with the “SET” button).
While the tuning operation is under way, the Process Set Value (PSEt) can not be changed.

P.5

 1-877-798-7287

Process

Value

Time

During

Atun

operation

100%

Process

Output

Control is

unstable

PID coefficients are
determined and system
becomes stable.

    Process Set 
Value (            )

Time

LIMIT CYCLE TUNING (Auto Tune)

Process

Value

Time

100%

Process

Output

Stun
Start

Value

PID coefficients are determined

and system becomes stable.

Start Value +  [ ( Set Value) ]

2

    Process Set 
Value  (            )

Time

STEP RESPONSE TUNING (Self Tune)

Process

Value

Time

100%

Process

Output

Stun
Start

Value

    Process Set 
Value  (          )

Start Value -  [ ( Set Value) ]

2

PID coefficients are determined

and system becomes stable.

Time

ESM 7750 v10R7

SU-L

SV min. limit. Adjustable from min. scale to 

SU

-u

 

value . It’s the minimum value of 

the operation scale.

out3

Output configuration (

heat

cool

Lout

)

Con3

Control type (ON/OFF or PID)

HYS3

Hysteresis value 0% to 50% of FS (expressed in degrees)

tm3

Minimum OFF time (0.0 to 100.0 seconds). Active in on.off control

Lou3

0=Alarm output

1=Manual / Automatic data output

2=Sensor break alarm

3=Output active when PV is outside operating range

4=Output activates at end of R/S 5=Analog input module sensor break alarm
6=PV of second input is <LoL1 / 2 or >uPL1 / 2 

aLt3

Alarm type:

0-Process high alarm

1-Process low alarm

2-Deviation high alarm

3-Deviation low alarm

4-Deviation band alarm

5-Deviation range alarm

6=Heater failure alarm (CT input module must be installed)

NOTE: 2,3,4,5,are not available if Lou3 

 0.

aLH3

Alarm hysteresis. Active if output 3 is alarm output. If ALS3=0 or there is no second 
sensor input, adjustment is 0 - 50% of process input scale (uPL-LoL). 
If ALS3=1and an analogue input is present, then it can be adjusted from 0 to 50% of 
the input module’s scale.
If a CT input module is installed and ALt3=0006, adjust from 0.0 to 20.0A.

SU-u

SV max. limit. Adjustable from 

SU-L

 

value to max. scale. It’s the maximum 

value of the operation scale.

HYn3

Mode of Hysteresis

0=SV+(HYS/2) and SV-(HYS/2)  
1=SV and SV+HYS or SV and SV-HYS

Output - 3

If Module 1 or 2 is EMI-410, EMI-430, EMI-440 or EMI-450 (continued)

RTS1 / 2

Selection of sensor type and scale (see Table 1)

UNT1 / 2

°C=Centigrade

°F=Fahrenheit

LoL1 / 2

Minimum value of second sensor input range

uPL1 / 2

Maximum value of second sensor input range

IPu1 / 2

Module 1 / 2  PV offset ±10% of FS1. Added to the input reading in degrees

iFL1 / 2

Module 1 / 2  Input signal filtering time. (From 0,0 to 900,0 secs)

rES1 / 2

Determines whether the measured value is the result of the input on 

terminals 1,2, 3 or from the input module. Visible only when decimal point 
and unit parameters are the same for both inputs. If YES, then analogue 
input module

s value is used as the Set Value. If NO, then SV=PSET

Parameters

UAS1 / 2

Selection of sensor type and scale. (See Table1)

DPN1 / 2

Analogue input module decimal point position
0 = 9999

1 = 999.9

2 = 99.99

3 = 9.999

ICA1 / 2

Analogue input module calibration

type

0 = None

1 = Dual point

ICL1 / 2

Minimum value for dual point calibration

ICH1 / 2

Maximum value for dual point calibration

uNT1 / 2

°C=Centigrade

°F=Fahrenheit

U=Other units

LoL1 / 2

Minimum value of second sensor input range

uPL1 / 2

Maximum value of second sensor input range

Ipu1 / 2

Module 1 / 2 PV offset ±10% of FS1. Added to the input reading.

iFL1 / 2

Module 1 / 2 Input signal filtering time. (From 0

.

0 to 900

.

0 secs)

rES1 / 2

Determines whether the measured value is the result of the input on 

terminals 1,2, 3 or from the input module. Visible only when decimal point 
and unit parameters are the same for both inputs. If YES, then analogue 
input module

s value is used as the Set Value. If NO, then SV=PSET



I

 

SL1 or

  I

L2=

 1

f

I

S

If

I

L

 

 

L2= 



 

S

1= 

or 

IS

2

General Configuration (Genn ConF)

Su-L2

Second sensor SV min. limit. Adjustable from min. scale to 

SU

-u

2

 

value . 

It’s the minimum value of the operation scale.

SU-u2

Second sensor SV max. limit. Adjustable from 

SU-L

2

 

value to max. scale. 

It’s the maximum value of the operation scale.

ALS3

Alarm sensor selection. If output 3 is an alarm output and an analogue module is 
installed:

0 = Alarm in accordance with input sensor (on terminals 1,2,3)
1 = Alarm in accordance with analogue input module (1 or 2)

Alarm delay from fault 0.0 to 9999 seconds

Aon3

Alarm reset from fault 0.0 to 9998 seconds.
For high limit with manual reset only, select 9999. Display will read LtCH to indicate 
latch feature has been selected.

AoF3

ULtt

Motorized valve travel time can be adjusted from 5 to 600 sec.

ULHY

Min. activation time of motorized valve and is adjustable from 0.1 to 5.0%.
eg. If ULtt=100s and ULHY=1.0% then the minimum activation time is (100s*1%) or 

1 second.

Summary of Contents for ESM 7750

Page 1: ...be taken to avoid injury from metal burrs which might be present The equipment can loosen from vibration and become dislodged if installation parts aren t properly tightened WARNING Before beginning...

Page 2: ...17 18 output 3...

Page 3: ...e two independent 4 segment processes essentially giving you two recipes or one 8 segment process If you want only one Ramp use the Stra parameter You do not have to use the Pu Tr and TS parameters By...

Page 4: ...FF time 0 0 to 100 0 Seconds oAt1 oAt2 Output scale 0 0 20mA connect parallel 500 ohm for 0 10VDC 1 4 20mA 0 Alarm output 1 Manual Automatic 2 Sensor break alarm 3 PV is out of range 4 Ramp Soak finis...

Page 5: ...Time 100 Process Output Stun Start Value PID coefficients are determined and system becomes stable Start Value Set Value 2 Process Set Value Time STEP RESPONSE TUNING Self Tune Process Value Time 100...

Page 6: ...ngeAlarm Process Output 100 50 0 Process Value Cooling Set Value Heating Set Value Process Output 100 50 0 Process Value Heating Set Value Cooling Set Value If 0 Dead Band If 0 Overlap Band 1 877 798...

Page 7: ...ak time up to 8 R S steps Ramp Soak menu EMO 700 relay output module must be plugged into Module 1 socket 100 240 V Opening Relay N L Supply Switch Closing Common Opening Valve Supply Input M V n n Op...

Page 8: ...C AUTO SET SET SET SET SET SET C AUTO C AUTO C AUTO C AUTO SET SET SET SET C AUTO C AUTO C AUTO C AUTO C AUTO SET SET SET SET SET SET Technician Parameters Process Input Configuration C AUTO C AUTO C...

Page 9: ...Control Parameters Technician Parameters Input Output 1 Module Configuration P 9 C AUTO C AUTO C AUTO C AUTO C C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO SET SET SET SET SET...

Page 10: ...ET SET C AUTO SET Technician Parameters Output 3 Configuration C AUTO C AUTO C AUTO C AUTO C C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO SET SET SET SET SET SET SET SET SET SET SET...

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