Ice NPM800R User manual

NPM800
–
NPM800R
Motor
multi-function relay
User’s
Guide

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 1
Indice : g
FOREWORD
The aim of this handbook is to provide to the User information useful for the operation of
NPM800 and NPM800R-NPM800RE relays with the local MMI.
We advise you to read it carefully, in order to take note of the available functionalities and to
proceed to connection and power of the product in accordance with the provided
recommendations.
Locally, setting, commissioning and real time or event readings are accessible from keyboard
and displayed on the protection display.
To be fully exploited, the available functions must be parameterized and consulted with the
setting software PC – Protection, provided with the product.
Before any use, we recommend you to read the safety instructions of this User’s guide.
This guide is the substitute of the A0343E1E. (NPM800 USER’S GUIDE)

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 2
Indice : g
CONTENTS
1. SAFETY INSTRUCTIONS __________________________________________________________ 4
1.1 D OCUMENTATION ....................................................................................................................................... 4
1.2 C ONNECTION OF THE RELAYS ..................................................................................................................... 4
1.3 O N LOAD WITHDRAWAL .............................................................................................................................. 4
1.4 R EMOVAL AND DESTRUCTION ..................................................................................................................... 4
2. PROTECTION AND OPERATION FUNCTIONS_______________________________________ 6
2.1 P ROTECTION FUNCTIONS NPM800 AND NPM800R - NPM800RE............................................................. 6
2.2 O PERATION FUNCTIONS NPM800 AND NPM800R - NPM800RE............................................................... 6
2.3 L OCALLY AVAILABLE U SER ’ S FUNCTIONS .................................................................................................. 6
2.4 R EMOTELY AVAILABLE U SER ’ S FUNCTIONS ................................................................................................ 7
3. FIRST USE _______________________________________________________________________ 8
3.1 D EFAULT SCREEN ........................................................................................................................................ 8
3.2 P RESENCE OF A FAULT OR AN ALARM ......................................................................................................... 8
3.3 A CKNOWLEDGMENT OF LATCHING OUTPUT RELAYS – ANSI 86 ................................................................. 8
4. GENERAL INFORMATION ON MENUS _____________________________________________ 9
4.1 S ETTING MODE (I N / O UT )........................................................................................................................... 9
4.2 M ODIFICATION OF A PARAMETER ...............................................................................................................10
4.3 A CCESS CODE .............................................................................................................................................11
4.4 A SSIGNMENT OF OUTPUT UNITS .................................................................................................................12
5. MENU LIST _____________________________________________________________________ 13
5.1 A CCESS TO MAIN MENUS ............................................................................................................................13
5.2 M EASUREMENT MENU (V1.24 AND V2. XX FIRMWARE ONLY )....................................................................15
5.3 M AINTENANCE MENU ( SINCE V3.00 FIRMWARE ) .......................................................................................17
5.4 P HASE / EARTH FAULT MENU , AFTER STARTING ...........................................................................................19
5.5 G ENERIC FUNCTIONS MENU .......................................................................................................................21
5.6 T HERMAL OVERLOAD MENU ......................................................................................................................22
5.7 S TART MENU ..............................................................................................................................................24
5.8 L OSS OF LOAD MENU ( OR PUMP UNPRIMING )..............................................................................................26
5.9 U NBALANCE MENU ....................................................................................................................................27
5.10 L OAD - SHEDDING MENU ..............................................................................................................................28
5.11 R EMOTE CONTROL MENU ...........................................................................................................................30
5.12 D ISTURBANCE MENU ..................................................................................................................................32
5.13 C OUNTERS MENU .......................................................................................................................................33
5.14 O PERATION MENU ......................................................................................................................................34
5.15 C OMMUNICATION M ODBUS ® MENU ( IF OPTION AVAILABLE ) ....................................................................38
5.16 C HANGE OF CODE MENU ............................................................................................................................38
5.17 I NFORMATION MENU ..................................................................................................................................39
6. CONTENT OF AN EVENT_________________________________________________________ 40
6.1 E VENTS GENERATED ON 50/51N/37/46 THRESHOLDS (NPM800 AND NPM800R - NPM800RE) ..............40
6.2 T HERMAL OVERLOAD EVENT .....................................................................................................................42
6.3 C USTOMIZED INPUTS EVENTS .....................................................................................................................43
6.4 O THER EVENTS ..........................................................................................................................................44
6.5 A CKNOWLEDGEMENT OF EVENTS ..............................................................................................................44
6.6 R EADING OF THE LAST 250 MEMORIZED EVENTS .......................................................................................44
7. LIST OF FAULTS OR OPERATION MESSAGES _____________________________________ 45
7.1 L IST OF FAULTS OR OPERATION MESSAGE (F IRMWARE V1.24 AND V2. XX )................................................45
7.2 M ESSAGES RELATED TO INSTANTANEOUS TYPE FUNCTIONS : .....................................................................45
7.3 M ESSAGES RELATED TO TRIP TYPE FUNCTIONS :.........................................................................................45
7.4 M ESSAGES RELATED TO ALARM TYPE FUNCTIONS : ....................................................................................45
7.5 V ARIOUS MESSAGES : .................................................................................................................................45
7.6 L IST OF FAULTS OR OPERATION MESSAGES (F IRMWARE V3.00).................................................................46

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 3
Indice : g
7.7 M ESSAGES RELATED TO INSTANTANEOUS TYPE FUNCTIONS : .....................................................................46
7.8 M ESSAGES RELATED TO TRIP TYPE FUNCTIONS :.........................................................................................46
7.9 M ESSAGES RELATED TO ALARM TYPE FUNCTIONS : ....................................................................................46
7.10 V ARIOUS MESSAGES : .................................................................................................................................46
8. CONNECTION OF NPM800 RELAYS _______________________________________________ 48
8.1 R EAR VIEW OF NPM800 WITH LOCATION OF THE TERMINAL BLOCKS ( WITH SHORT - CIRCUITING DEVICES )48
8.2 R EAR VIEW OF NPM800 WITH LOCATION OF THE TERMINAL BLOCKS ( WITHOUT SHORT - CIRCUITING
DEVICES )................................................................................................................................................................49
8.3 NPM800 CONNECTIONS .............................................................................................................................50
8.4 NPM800 DIAGRAM ....................................................................................................................................50
8.5 NPM800 CONNECTION OF THE CURRENT INPUTS .......................................................................................50
9. CONNECTION OF NPM800R – NPM800RE RELAYS _________________________________ 51
9.1 R EAR VIEW OF NPM800R WITH LOCATION OF THE TERMINAL BLOCKS .....................................................51
9.2 NPM800R F IXING RODS ............................................................................................................................52
9.3 R EAR VIEW OF NPM800RE WITH LOCATION OF THE TERMINAL BLOCKS ...................................................53
9.4 NPM800RE F IXING RODS ..........................................................................................................................54
9.5 NPM800R CONNECTIONS ..........................................................................................................................55
9.6 NPM800RE CONNECTIONS ........................................................................................................................55
9.7 NPM800R AND NPM800RE WIRE SECTION ..............................................................................................56
9.8 NPM800R AND NPM800RE DIAGRAMS ....................................................................................................56
10. CONNECTION OF THE MODBUS RS485 COMMUNICATION _________________________ 57
10.1 C HARACTERISTICS OF THE NETWORK CABLE .............................................................................................57
10.2 R ESISTANCE OF ADAPTATION OF THE RS 485 CONNECTION .......................................................................58
10.3 P OLARIZATION OF THE RS 485 CONNECTION .............................................................................................59
10.4 RS 485 CONNECTION NOT USED .................................................................................................................59

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 4
Indice : g
1. Safety instructions
For your safety, we recommend you to read the following information carefully. They aim to
specify the precautions essential to the good installation and the correct operation of the
relays.
1.1 Documentation
Following documentations are available for the NP800 and NP800R:
♦Application guide of the NP800 and NP800R series
♦User’s Guide of Setting Software
♦User’s Guide (for each kind of relay)
♦First Handling Guide (for each kind of relay)
♦Diagram of each relay
♦Dimensions and mounting diagram
♦Matrix choice and dimensions of ring core type C.T.
♦User’s Guide and diagram of the BA800
We advise you to read them before any handling.
1.2 Connection of the relays
The terminal blocks of the relays are studied to ensure the safety of the people during the
operation of the relays.
During installation, commissioning or maintenance, they can however present high voltages
and possibly a thermal heating. Consequently, the following precautions must be respected:
♦Connection of the terminal blocks at installation must be carried out after having
ensured of the absence of any voltage
♦Their access during operation must be carried out through adequate means ensuring
as well electric as thermal insulation
♦The connection of the earth of the relays must imperatively be done with mean of a
2.5 mm² wire.
Before powering the relays, it will be necessary to check in particular:
♦The value of the voltage rating of the auxiliary supply and its polarization
♦The tightening of the:
- fixing rods of the current terminal blocks (NPM800)
- fixing rods of the relay case (NPM800R - NPM800RE)
♦The good realization of connections
♦The integrity of the connection to the earth.
1.3 On load withdrawal
With voltage or on load, it is formally misadvised to withdraw the:
- connectors and the current terminal blocks*
- relay (NPM800R - NPM800RE)
* for NPM800 relay fitted with short-circuiting devices
1.4 Removal and destruction

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 5
Indice : g
The relays should in no case be opened by the User. During their removal, they must be
completely isolated from any external polarity and condensers must be discharged by
connecting their external terminals to the earth.
Destruction of the relays will have to be carried out in accordance with legislation in force, in
particular in compliance with the environment and safety requirements.

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 6
Indice : g
2. Protection and operation functions
2.1 Protection functions NPM800 and NPM800R - NPM800RE
♦ANSI 49 Thermal overload function, with inhibition of closing on load.
♦Short-circuit protection, with one ANSI 50 threshold
♦Earth fault protection, with one ANSI 51N threshold
♦Minimum load protection (pump unpriming) ANSI 37
♦Inverse over-current protection with one ANSI 46 threshold for the detection of
unbalance, loss or inversion of phase ANSI 46
♦Too long starts ANSI 48 and locked rotor Protection ANSI 51LR
♦ANSI 66 number of starts authorisation Function
♦Load-shedding and re acceleration Function by external input
♦ANSI 50BF & 50NBF, circuit breaker failure function by checking of the
disappearance of the phase current. (Configuration available only by the setting
software)
♦ANSI 86, latching output contacts (Configuration available only by the setting
software)
♦ANSI 74TC, trip circuit supervision (Configuration only by the setting software)
2.2 Operation functions NPM800 and NPM800R - NPM800RE
♦Two setting groups
♦Assignment of digital inputs
♦Assignment of relay outputs
♦User programmable LEDs
♦Monitoring of trips and reclosings
♦Help in circuit breakers maintenance: number of operations with alarm threshold
♦Storage of the last 250 events
♦Storage of four 52 periods disturbance recordings, according to COMTRADE
standard
♦4 or 8 User configurable generic functions.
2.3 Locally available User’s functions
Locally, the following functions are available:
♦Choice of language
♦Setting in or out of order of the functions
♦Customized identification of protection
♦Setting of adjustment and primary values for the two tables
♦Assignment of the inputs / outputs
♦Reading of fault values
♦Reading of each memorized value: measurements and counters
♦Reset of counters
♦Reading of events
♦Configuration of disturbance recording and local trigger
♦Configuration of Modbus® communication.

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 7
Indice : g
2.4 Remotely available User’s functions
The following functionalities can be accessed through the RS232 or RS485 links:
♦Saving of configuration
♦Commissioning tests: LCD display, adjustment of contrast, LEDs
♦Commissioning tests: relays, wiring
♦Reading of real time values: measurement and counters
♦Reading of disturbance recordings.
♦ANSI 50BF & 50_NBF circuit breaker failure function
♦ANSI 86, latching output contacts
♦ANSI 74TC, trip circuit supervision
These functions are however available with the setting software through the RS232.
.

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 8
Indice : g
3. First use
When powering the relay, the displays below can appear. The recommended action allows
starting the parameter setting of protection.
3.1 Default screen
In absence of a fault, the protection displays the phase 1 current measurement in HV value.
CURRENT I1
0.0 A
3.2 Presence of a fault or an alarm
If a fault or alarm occurs, a message indicates the type of fault.
TRIP
PHASE FAULT
This message disappears at once after acknowledgement of the fault and is replaced by the
following message.
TRIP PH FAULT S
10/12 16:38.15 R
This message remains until the acknowledgement of the fault by the User.
Note: if the mode «simplified recording of events" is not chosen, the display will be as
follows:
TRIP PH FAULT S
17/08 14:22:28 R
INST PH FAULT S
17/08 14:22:28 R
TRIP PH FAULT A
17/08 14:22:27 R
TRIP PH FAULT A
17/08 14:22:26 R
3.3 Acknowledgment of latching output relays – ANSI 86
For the Firmware s ≥V2.20 and < V3.00, see the « Counters » menu.
For the Firmware s > V3.00, see the « Maintenance » menu.

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 9
Indice : g
4. General information on menus
All parameters can be accessed for reading. On the other hand, parameters are write-
protected by an access code requested on the first modification.
4.1 Setting mode (In / Out)
Press any key except CLEAR to enter in setting mode.
If no parameter has been modified, exit the mode by pressing the CLEAR key:
*
MAIN MENU
MESUREMENTS
CURRENT I1
0.0 A
CURRENT I1
0.0 A
Or
*
MAIN MENU
MAINTENANCE
* « Measurements Menu» for the V1.24 and V2.xx Firmware and, « Maintenance Menu»
from the V3.00 Firmware.
If a parameter has been modified, confirm the exit from setting mode:
MAIN MENU
PHASE EARTH FLT.
QUIT SETTINGS
MODE ?
CURRENT I1
0.0 A
Without any operation, return to default screen is carried out automatically after 5 minutes.

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 10
Indice : g
4.2 Modification of a parameter
Use the and keys to select a menu, then press the ENTER key to access the first
parameter.
MAIN MENU
MEASUREMENTS
Or
MAIN MENU
PHASE EARTH FLT.
SETTING
set 1
MAIN MENU
MAINTENANCE
Use the and keys to access the various parameters in the menu:
SHORT CIRCUIT
Active
SHORT CIRC.DELAY
0,50 s
SHORT CIRC.THRES
3,0 * In
Use the and keys to modify the parameter.
You must confirm your change using the ENTER key after each parameter modification.
After storing the new parameter value, next parameter is displayed:
SHORT CIRC.DELAY
0.60 s SHORT CIRC.DELAY 0.70 s
SHORT CIRC.THRES
3,0 * In
Use the CLEAR and keys to change menu:
SHORT CIRC.DELAY
0,70 s
MAIN MENU
PHASE EARTH FLT
MAIN MENU
GENERIC FUNCTION
Leaving any sub menu with the CLEAR key will lead to the above menu.

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ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 11
Indice : g
4.3 Access code
On first modification of a parameter, the software requests the access code.
The factory-programmed code is " ICE1 ".
To enter your own personalised code, use the " CHANGE CODE " menu. The code can be
composed up to four alphanumeric characters.
The following example shows how to replace code "AA" with " 99 ":
MAIN MENU
CHANGE CODE
Press on « ENTER » to confirm
OLD PASSWORD
_
Press on until obtaining the letter « A»
OLD PASSWORD
I
Press on to displace the cursor « _»
OLD PASSWORD
I_
Press on until obtaining the letter « A»
OLD PASSWORD
AA
Press on « ENTER » to confirm
NEW PASSWORD
_
Press on until obtaining the letter « 9»
NEW PASSWORD
9
Press on to displace the cursor « _»
NEW PASSWORD
9_
Press on until obtaining the letter « 9 »
NEW PASSWORD
99
Press on « ENTER » to confirm
MAIN MENU
CHANGE CODE
In case of loss of the code, contact us to obtain an emergency password for your
configuration.

This document is the sole property of
ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 12
Indice : g
4.4 Assignment of output units
Relays assigned to a function are displayed with « 

».
Key allows displacing the cursor « _ » on the relay(s) to assign.
Key allows assigning or not the relays used by the functions.
Example: assignment of relay B to TRIP Io > low earth function. At the beginning, no function
was assigned to this relay.
Caution: do not forget to confirm by ENTER key.
EARTH TRIP RELAY
A_ B C D
EARTH TRIP RELAY
A B_ C D
EARTH TRIP RELAY
A BC D
EARTH TRIP RELAY
E F G

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ICE. No duplication nor release to third
party is allowed without prior
authorization
User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 13
Indice : g
5. Menu list
5.1 Access to main menus
The following menus enable setting of the available functions. Each one allows access to the
parameters of adjustment and ensures their coherence.
CURRENT I1
100.0 A Press on any key other than CLEAR
to enter the parameter setting mode
Press on CLEAR key to leave
the parameter setting mode
MAIN MENU
MEASUREMENTS
Real time measures (firmware
V1.24
and V2.xx)
Cf. chapter 4 to select a
menu
Or
MAIN MENU
MAINTENANCE
Real time measures (since V3.00
firmware)
MAIN MENU
PHASE EARTH FLT.
Parameters of the functions 50 and
51N
MAIN MENU
GENERIC FUNCTION
Parameters of the customized
functions
MAIN MENU
THERMAL IMAGE
Parameters of the thermal overload
function
MAIN MENU
STARTING FCT.
Parameters of the functions 51LR
and 66 (starts)
MAIN MENU
LOSS OF LOAD
Parameters of the minimum load
function (pump unpriming) 37
MAIN MENU
UNBALANCE
Parameters of the function 46
(unbalance)
MAIN MENU
LOAD SHEDDING
Parameters of the load-shedding
function
MAIN MENU
TELECONTROL
Parameters of the remote control
option

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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 14
Indice : g
MAIN MENU
PERTURBOGRAPHY
Information about disturbance
recording
MAIN MENU
COUNTERS
Information about counters
MAIN MENU
OPERATION
Operating parameters to be defined
at commissioning
MAIN MENU
RS485 COMMS
Configuration of the Modbus RS485
communication option
(if option available)
MAIN MENU
CHANGE CODE
Change of the access code
MAIN MENU
INFORMATION
Information about protection
MAIN MENU
EVENTS
Reading of the event log
Leaving any sub menu with the CLEAR key will lead to the above menu.

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ICE. No duplication nor release to third
party is allowed without prior
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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 15
Indice : g
5.2 Measurement menu (V1.24 and V2.xx firmware only)
This menu displays any real time measurement of the protection, as well as the values kept
in memory.
MAIN MENU
MEASUREMENTS
Available real time measures
CURRENT I1
0.0 A
Measure of the phase 1 primary
current
0.0 to 65535A
CURRENT I3
0.0 A
Measure of the phase 3 primary
current
0.0 to 65535A
CURRENT Io
0.00 A
Measure of the earth Io primary
current
0.0 to 65535A
FREQUENCY
50.00 Hz
Measure of the network frequency 45 to 55 if Fn = 50 Hz
55 to 65 if Fn = 60 Hz
THERMAL IMAGE
0.0 %
Measure of the thermal state of
motor
0.0 to 500 %
NEGATIVE SEQ.
0.0 %
Measure of the rate of negative
sequence of current
POSITIVE SEQ.
0.0 %
Measure of the rate of positive
sequence of current
CURRENT START
0.0 A
Maximum current measured during
last start (firmware 2.xx)
0 to 65535A
STARTS ALLOWED
4
number of authorized remaining
starts
Inactive if function MAX
NBR STARTS inactive.
START TIME
3.00 s
Duration of the last start 1 to 200 s

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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 16
Indice : g
AVER. CURRENT I1
100.0 A
Value of the average primary current
of phase 1
0 to 65535A
AVER. CURRENT I3
100.0 A
Value of the average primary current
of phase 3
0 to 65535A
AVER. CURRENT I0
0.0 A
Value of the average earth-fault
primary current
0 to 65535A
SETTING
set 1
Display of the active setting group set 1 or set 2
02/07/01
10:19:42
Day / Month / Year
Hour / minute / second

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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 17
Indice : g
5.3 Maintenance menu (since V3.00 firmware)
This menu displays any real time measurement of the protection, as well as the values kept
in memory.
MAIN MENU
MAINTENANCE
Available real time measures
CURRENT I1
0.0 A
Measure of the phase 1 primary
current
0.0 to 65535A
CURRENT I3
0.0 A
Measure of the phase 3 primary
current
0.0 to 65535A
CURRENT Io
0.00 A
Measure of the earth Io primary
current
0.0 to 65535A
FREQUENCY
50.00 Hz
Measure of the network frequency 45 to 55 if Fn = 50 Hz
55 to 65 if Fn = 60 Hz
THERMAL STATE
0.0 %
Measure of the thermal state of motor 0.0 to 500 %
NEGATIVE SEQ.
0.0 %
Measure of the rate of negative
sequence of current
POSITIVE SEQ.
0.0 %
Measure of the rate of positive
sequence of current
LAST START CURR.
0.0 A
Maximum current measured during
last start (firmware 2.xx)
0 to 65535A
LAST START DATE
01/12 01:52:47
Date of last start
Day/Month Hour : Minute : Second
MAX START CURR.
0.0 A
Maximum current measured during all
starts
0 to 65535A
STARTS ALLOWED
4
number of authorized remaining starts Inactive if function MAX
NBR STARTS inactive.

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party is allowed without prior
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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 18
Indice : g
LAST START TIME
3.00 s
Duration of the last start 1 to 200 s
MAX START TIME
0.00 s
Maximum duration measured during
all starts
1 to 200 s
OPERATING TIME
0 h 0 mn
hour(s) and minute(s) counter since
the last start
0 to 65535 h
0 to 59 mn
SERVICE TIME
4h
Counter of running hours since the
commissioning
0 to 65535 h
AVER. CURRENT I1
100.0 A
Value of the average primary current of
phase 1
0 to 65535A
AVER. CURRENT I3
100.0 A
Value of the average primary current of
phase 3
0 to 65535A
AVER. CURRENT I0
0.0 A
Value of the average earth-
fault primary
current
0 to 65535A
SETTING
set 1
Display of the active setting group set 1 or set 2
E1E2E3E4E5E6E7E8
0 0 0 0 0 0 0 0
Display of the digital inputs 0 if inactive or 1 if active
WD A B C D E F G
1 0 0 0 0 0 0 0
Display of the digital outputs 0 if inactive or 1 if active
REL. HOLD. RESET
Confirm : ENTER
Reset of latching output relays
ANSI 86*
02/07/01
10:19:42
Day / Month / Year
Hour / minute / second
* for ≥V2.20 Firmware , see « Counters » menu

This document is the sole property of
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User’s Guide
NPM800 – NPM800R
NPM800RE
Date : 05/2013
Edition :30/01/2014 Folio : 19
Indice : g
5.4 Phase/earth fault menu, after starting
This menu allows the setting of the phases and earth fault over current functions: setting in
and out of order, choice of the types of time delay and curves, adjustment of thresholds,
assignment of the output units.
This configuration must be carried out successively for each of the two settings groups if they
are to be used alternatively.
MAIN MENU
PHASE EARTH FLT.
Parameters of the ANSI 50, 51N
functions
SETTING
set 1
Choose the setting group set 1 or set 2
SHORT CIRCUIT
Active
Choose Active to use the phase to
phase short-circuit function
Active or Inactive
SHORT CIRC.DELAY
0.06 s
Set the value of time delay of the
phase to phase short-circuit function
0.04 to 3 s
SHORT CIRC.THRES
3.0 * In
Set the threshold of the phase to
phase short-circuit function
3.0 to 12.0 * In
SHORT C.INST.REL
A B C D
Select relay to assign to the short-
circuit instantaneous function
See chap 4 to choose a relay
or to modify the assignment
SHORT C.INST.REL
E F G
(relays D, E, F, G if option
available)
SHORT C.TRIP.REL
A B C D
Select relay to assign to the short-
circuit trip function
See chap 4 to choose a relay
or to modify the assignment
SHORT C.TRIP.REL
E F G
(relays D, E, F, G if option
available)
EARTH FAULT
Active
Choose Active to use the earth fault
function
Active or Inactive
INHIBITION Io
Active
Choose Active to use the earth fault
function during the start
Active or Inactive