PPI neuro 100 Manuale utente
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User Manual
Universal Process Indicator
CONTENTS
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1. FRONT PANEL LAYOUT 1
2. BASIC OPERATION 3
3. SET-UP MODE ACCESS AND OPERATION 5
4. ALARM PARAMETERS 7
5. RETRANSMISSION PARAMETERS 9
6. INPUT CONFIGURATION 10
7. SUPERVISORY PARAMETERS 14
8. USER LINEARISATION PARAMETERS 16
9. HARDWARE ASSEMBLY & CONFIGURATIONS 17
10. MECHANICAL INSTALLATION 23
11. ELECTRICAL CONNECTIONS 25
For Size 48X48
For Size 96X96
1. FRONT PANEL LAYOUT 30
2. HARDWARE ASSEMBLY & CONFIGURATION 32
3. 36ELECTRICAL CONNECTIONS
1
The indicator front panel comprises of digital readouts, LED indicators and membrane keys as shown in Figure 1.1 below.
FRONT PANEL LAYOUT
Figure 1.1
READOUTS
The Upper Readout is a 4 digit, 7-segment bright red LED display and usually displays the PV (Process Value).In Set-up
Mode, the Upper Readout displays parameter values/options.
The Lower Readout is a 4 digit, 7-segment bright green LED display and usually displays Process Value Units. In case of any
active Alarm(s), the Lower Readout flashes Alarm Status information. In Set-up Mode, the Lower Readout displays the names
(identifier tags) for the parameters.
INDICATORS
The front panel comprises 2 LED indicators that show Alarm status. Refer Table 1.1 below for details.
Flashes while Alarm-1 is active.
AL1
AL2 Flashes while Alarm-2 is active.
LED Status
Table 1.1
KEYS
There are four tactile keys provided on the front panel for configuring the indicator, setting-up the parameter values. Refer
Table 1.2 below.
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DOWN Key
PAGE Key
Alarm-1 Status
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PPI
Upper Readout
Lower Readout
ENTER Key
UP Key
Alarm-2 Status
AL1 AL2
2
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Table 1.2
Symbol Key Function
Press to enter or exit set-up mode.
PAGE
DOWN
UP
ENTER Press to store the set parameter value and to scroll to the next
parameter on the PAGE.
Press to increase the parameter value. Pressing once increases the
value by one count; keeping pressed speeds up the change.
Press to decrease the parameter value. Pressing once decreases
the value by one count; keeping pressed speeds up the change.
3
POWER-UP
Upon power-up, all displays and indicators are lit on for approximately 3 seconds. This is followed by the indication of the
indicator model name on the Upper Readout and the firmware version o n t h e L ower Readout, for
approximately 1 second.
MAIN DISPLAY MODE
After the Power-up display sequence, the Upper Readout starts showing the measured PV (Process Value) and the Lower
Readout displays the user set Units for Process Value. This is the MAIN Display Mode that shall be used most often.
Alarm Status Information
In case of any Alarm (or Alarms) becoming active, the Lower Readout flashes the related Alarm details in the format ‘Ax.YY’,
where x is the Alarm Number (1 or 2) and YY is the Alarm Type (Lo or Hi). For example; if Alarm -1 is active and the set Alarm
Type is Low then the Lower Readout flashes In case of multiple Alarms, each Alarm Status is flashed sequentially with
1 Seconds interval.
PV Error Indications
The PV Error type is flashed on the Upper Readout. For different errors and the causes, refer Table 2.1 below.
Table 2.1
PV above Max. Range
PV below Min. Range
Message Error Type Cause
Thermocouple / RTD broken
Sensor Open
Under-range
Over-range
BASIC OPERATION
ALARM STATUS UNDER PV ERROR CONDITIONS
For Alarm activation, the under-range condition is treated as minimum PV, whereas the over-range and open conditions are
treated as maximum PV. Thus, Process High alarm activates under Over-range / Open error. Similarly, Process Low alarm
activates under Under-range error.
OPERATOR PAGE AND PARAMETERS
The parameters that require frequent settings are organized on a separate page, called the Operator Page. The availability of
operator parameters is controlled at supervisory level and the parameter setting cannot be locked by the Master Lock.
Accessing Operator Page & Adjusting Parameters
Step through the following sequence to open the operator page and to adjust the operator parameter values.
1. Press and release PAGE key. The Lower Readout shows (PAGE) and Upper Readout shows (0).
2. Press and release ENTER key. The Lower Readout shows prompt for the first available operator parameter and the Upper
Readout shows value for the parameter.
3. Use UP / DOWN keys to adjust the value and then press ENTER key to store the set value and scroll to next parameter.
The automatically reverts to MAIN Display Mode upon scrolling through the last operator parameter. Alternatively, indicator
use PAGE key to return to MAIN Display Mode.
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Section 2
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Table 2.2
Parameter Description Settings
(Default Value)
View Only
(Default :NA)
(Default :No)
No
Yes
View Only
(Default :NA)
0 to 250
(Default :0)
Min to max Range
specified for the
selected Input Type
(Default : Min or Max Range)
MAXIMUM PV
This indicates the highest value attained by the Process Value.
This is a read only value and is available only if Min/Max
monitoring is enabled.
MINIMUM PV
This indicates the lowest value attained by the Process Value.
This is a read only value and is available only if Min/Max
monitoring is enabled.
RESET COMMAND
Available only if Min/Max monitoring is enabled. This feature
clears the current Min/Max values and starts afresh monitoring the
PV for new highest and lowest values.
ALARM ACKNOWLEDGE
Set this parameter value to ‘Yes’ to acknowledge any pending
Alarm(s) to de-activate alarm relay(s). This parameter is available
only when any alarm(s) is active.
(Alternatively, use UP or DOWN key to acknowledge pending
Alarm(s).
RESET PASSWORD
For resetting the Min/Max values, set the reset command to ‘Yes’
and then enter the correct password.
ALARM-1 SETPOINT
The setpoint for Alarm-1. This parameter is not available if the
selected Alarm-1 type is ‘None’.
ALARM-2 SETPOINT
The setpoint for Alarm-2. This parameter is not available if the
selected Alarm-2 type is ‘None’.
Min to max Range
specified for the
selected Input Type
(Default : Min or Max Range)
(Default :No)
No
Yes
The operator parameters are described in Table 2.2. Note that the parameters presented on Operator Page depend upon the
functions selected/enabled and supervisory level permissions. The operator parameter list mainly includes :
a) Min / Max Process Monitoring Parameters.
b) Setpoint Values for Alarm-1 and Alarm-2.
5
The various parameters are arranged in different groups, called PAGES, depending upon the functions they represent. Each
group is assigned a unique numeric value, called PAGE NUMBER, for its access.
The parameters are always presented in a fixed format: The Lower Readout displays the parameter prompt (Identification
Name) and the Upper Readout displays the set value. The parameters appear in the same sequence as listed in their
respective sections.
SET-UP MODE
The Set-up Mode allows the user to view and modify the parameter values. Follow the steps below for setting the parameter
values:
1. Press and release PAGE key. The Lower Readout shows PAGE and the Upper Readout shows page number 0. Refer
Figure 3.1.
2. Use UP / DOWN keys to set the desired PAGE NUMBER.
3. Press and release ENTER key. The Lower Readout shows the prompt for the first parameter listed in the set PAGE and the
Upper Readout shows its current value. If the entered PAGE NUMBER is invalid (contains no parameter list or any
associated function), the reverts to the MAIN Display Mode.indicator
4. Press and release the ENTER key until the prompt for the required parameter appears on the Lower Readout. (The last
parameter in the list rolls back to the first parameter).
5. Use UP / DOWN keys to adjust the parameter value. (The display flashes if UP key is pressed after reaching the maximum
value or DOWN key is pressed after reaching the minimum value).
6. Press and release the ENTER key. The new value gets stored in the indicator’s non-volatile memory and the next
parameter in the list is displayed.
The Figure 3.1 illustrates the example of altering the value for the parameter ‘Input type’.
SET-UP MODE : ACCESS AND OPERATION
Figure 3.1
Press PAGE
key to enter
Set-up mode
Press ENTER
key to open
the Page
Use UP/DOWN
keys to set the
Page Number
MAIN Display
Mode
Default Page Page Number
or
Use UP/DOWN
keys to change
the value
Press ENTER key
to store the value &
move to next parameter
First Parameter
on PAGE-12
Next Parameter
on PAGE-12
or
New Parameter
value
Notes
1. Each page contains a fixed list of parameters that are presented in a pre-determined sequence. Note however that availability of a few
parameters, called Conditional Parameters, depend upon the settings for some other parameters. For example, the parameter ‘Alarm
Setpoint’ is available if corresponding ‘Alarm type’ is set to other than ‘none’.
2. To exit the set-up mode and return to the MAIN Display Mode, press and release PAGE key.
3. If no key is pressed for approximately 30 seconds, the set-up mode times out and reverts to the MAIN Display Mode.
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MASTER LOCKING
The indicator facilitates locking all the PAGES (except Operator PAGE) by applying Master Lock Code. Under Locking, the
parameters are available for view only and cannot be adjusted. The Master Lock, however, does not lock the operator
parameters. This feature allows protecting the rather less frequently used parameters against any inadvertent changes while
making the frequently used operator parameters still available for any editing.
For enabling / disabling the Lock, step through the following sequence:
Locking
1. Press and release PAGE key while the indicator is in the MAIN Display Mode. The Lower Readout shows PAGE and the
Upper Readout shows 0.
2. Use UP / DOWN keys to set the Page Number to 123 on the Upper Readout.
3. Press and release ENTER key. The indicator returns to the MAIN Display Mode with the Lock enabled.
The Figure 3.2 below illustrates the Locking procedure.
Figure 3.2
UnLocking
Repeat the Locking procedure twice for unlocking.
Press PAGE
key to enter Set-up mode
Use UP/DOWN keys
to set the ‘Locking’ Code
Press ENTER key to
Lock & Return to MAIN Mode
MAIN Mode
MAIN Mode
Default Page Locking Code
or
7
Visit www.ppiindia.net for technical notes on ALARM for detailed understanding of the parameters / terminologies
used for describing the Alarm parameters in this section.
The parameters required for configuring Alarms are grouped on PAGE-10. The configuration includes selecting the type of
Alarm, setting the hysteresis value, enabling/disabling start-up Alarm suppression, etc. Refer Table 4.1 for parameter
description & settings.
ALARM PARAMETERS
Table:4.1
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Parameter Description Settings
(Default Value)
None
Process Low
Process High
(Default : )None
Min. to Max. Range
specified for the
selected Input Type
(Default : Min or Max Range)
1 to 999 or
0.1 to 999.9
(Default : 2.0)
(Default : Normal)
Reverse
Normal
ALARM-1 TYPE
Select the Alarm-1 activation type. Selecting ‘None’ will disable
the alarm and suppress all the related parameters for Alarm-1.
ALARM-1 SETPOINT
Sets the Process High or Process Low limit for Alarm-1.
ALARM-1 HYSTERESIS
Sets differential (dead) band between Alarm-1 ON and OFF
states.
ALARM-1 INHIBIT
Set to Yes to suppress Alarm-1 activation upon power-up (process
start-up) condition.
ALARM-1 LOGIC
Select ‘Normal’ if Alarm-1 relay is to activate an Audio / Visual
alarm. Select ‘Reverse’ for Tripping (cut-off) the system.
ALARM LATCH
No
The Relay switches ON/OFF with Alarm switching.
Yes
The Relay Output switches (ON for Normal Logic / OFF for
Reverse Logic) upon Alarm activation. However, Alarm de-
activation does not affect the Relay status. The Relay status can
only be regained by pressing ‘Acknowledge-key’ provided the
Alarm has de-activated.
No
Yes
(Default :Yes)
No
Yes
(Default :No)
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Parameter Description Settings
(Default Value)
(Default : Normal)
Reverse
Normal
Min. to Max. Range
specified for the
selected Input Type
(Default : Min/Max Range)
1 to 999 or
0.1 to 999.9
(Default : 2.0)
(Default :No)
No
Yes
Sets the Process High or Process Low limit for Alarm-2.
ALARM-2 SETPOINT
Sets differential (dead) band between Alarm-2 ON and OFF
states.
ALARM-2 HYSTERESIS
Set to Yes to suppress Alarm-2 activation upon power-up (process
start-up) condition.
ALARM-2 INHIBIT
Select ‘Normal’ if Alarm-2 relay is to activate an Audio / Visual
alarm. Select ‘Reverse’ for tripping (cut-off) the system.
ALARM-2 LOGIC
No
The Relay switches ON/OFF with Alarm switching.
Yes
The Relay Output switches (ON for Normal Logic / OFF for
Reverse Logic) upon Alarm activation. However, Alarm de-
activation does not affect the Relay status. The Relay status can
only be regained by pressing ‘Acknowledge-key’ provided the
Alarm has de-activated.
ALARM LATCH
ALARM-2 TYPE
Select the Alarm-2 activation type. Selecting ‘None’ will disable
the alarm and suppress all the related parameters for Alarm-2.
None
Process Low
Process High
(Default : )None
(Default :Yes)
No
Yes
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