Ashida ADR141C User manual

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 1/86
- Numerical
Over Current / Earth Fault
Protection Relay
Type : ADR141C / 241C

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 2/86
User Notice
Ashida Electronics (P) Ltd. Reserve all right to make improvements in the
products described in this manual at any time and without notice. All rights are
reserved. No part of this manual may be reproduce, copied, translated or
transmitted in any form or by any means without the prior written permission of
Ashida Electronics (p.) Ltd. Information in this manual is intended to be accurate
and reliable. However Ashida assumes no responsibility for its use; nor for any
infringements of rights of third parties, which may result from its use.

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 3/86
CONTENTS
1. Description 6
2. Protection Feature 7
3. Relay Design Feature 7
4. Main Function 7
4.1 Over current and EF Element 7
4.2 Inverse Time curve 8
4.3 Trip circuit supervision 10
4.4 Breaker failure detection 10
4.5 Cold Load Setting 11
5. Construction Detail 11
6. Self Check Feature 11
7. Technical Details 12
7.1 Technical Specification 12
7.2 Type Test Detail 14
7.3 Cabinet Drawing 16
7.4 Block Diagram 17
8 Front Panel and Control 18
8.1 User’s Interface 19
8.1.1 LCD Display 19
8.1.2 Touch Keys 19
8.1.3 LED’s 20
8.2 Password 20
8.2.1 Password Entry & Changing the Password 20
8.2.2 Clear Password 22
8.3 Menus 23
8.3.1 Default Display 23
8.3.2 Main Menu List 23
8.3.2.1 Main Menu List Details 24
8.3.3 Primary Current 27
8.3.3.1 To View – Primary Current 27
8.3.4 General Setting 28
8.3.4.1 To Set – General Setting 28
8.3.4.2 To View – General Setting 31

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 4/86
8.3.5 Relay Setting 32
8.3.5.1 To Set – Relay Setting 32
8.3.5.2 To View – Relay Setting 35
8.3.6 Cold Load Settings 36
8.3.6.1 To Set – Cold Load Setting 36
8.3.6.2 To View – Cold Load Setting 40
8.3.7 Relay/LED Configuration 41
8.3.7.1 Bit Definition for Relay/LED Configuration 41
8.3.7.2 To Set – Relay/LED Configuration 44
8.3.7.3 To View – Relay/LED Configuration 49
8.3.8 Trip Test 51
8.3.8.1 To View – Trip Test 51
8.3.9 Fault 1 52
8.3.9.1 To View – Fault 1 Data [Fault 2 to Fault 8] 52
8.3.10 Events Log 53
8.3.10.1 To View – Error Log 53
8.3.11 Error Log 53
8.3.11.1 To View – Error Log 53
8.3.12 Status 54
8.3.12.1 To View – Status 54
8.3.13 Date Time Setting 55
8.3.13.1 To Set – Date Time setting 55
8.3.13.2 To View – Date Time Setting 56
8.3.14 Secondary Current 57
8.3.14.1 To View – Secondary Current 57
9.0 Flow Chart 58
9.1 Flow Chart – To View Primary Current 58
9.2 Flow Chart – To Set / View General Settings 59
9.3 Flow Chart – To Set / View Relay Settings 60
9.4 Flow Chart – To Set / View Cold Load Settings 61
9.5 Flow Chart – To Set / View Relay/LEDs Settings 62
9.6 Flow Chart – To View Trip Test Settings 63
9.7 Flow Chart – To View Fault 1 (Fault 2 – Fault 8) 64
9.8 Flow Chart – To View Events Log Settings 64

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 5/86
9.9 Flow Chart – To View Error Log Settings 65
9.10 Flow Chart – To View Status Settings 65
9.11 Flow Chart – To Set / View Date/Time Settings 66
9.12 Flow Chart – To View Secondary Current 67
10 Communication –Only for ADR241C Relay 68
10.1 General 68
10.2 General Questions 69
10.3 Physical connection and link layer 70
10.4 Relay Talk System for downloading the data 71
10.5 ADR241C IED Main Screen 75
10.5.1 Parameter Display 76
10.5.2 IEDs Din Display 76
10.5.3 Control Operation 77
10.5.4 Private Setting 77
10.6 History Fault 78
10.7 Setting 79
10.7.1 General Setting 79
10.7.2 Bank Settings 80
10.8 Event List 81
11.0 Test Report Annexure – 1 83
11.1 Drawing for Test Setup. 85
12.0 Revision Note 86

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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1. Description:
•ADR141C / ADR241C are second generation Numerical 3OC + 1EF Over Current
Relay. [The ADR241C is communicable Relay having RS485 Port. All the other
features as per ADR141C Relay] It consist all the necessary protection and monitoring
functions required for Normal feeder. It consists of High Speed Digital DSP Controller.
•Analog Measuring Module.
•Power supply Module.
•Digital Input output module.
The High speed Digital Signal Controller continuously monitors phase, E/F current along with
different optical isolated status connections. The high-speed micro-controller samples these
current signals through a A/D converter. The Digital Signal performs powerful Numerical
Algorithms to find out RMS of fundamental & harmonic contents of the current then this
value is used for protection and metering function. All measurement is tuned to fundamental
frequency i.e. 50Hz, thus relay remain stable during distorted waveform generated
electronics loco-motive. All these measure values are then used for different protection
function such as IDMT/DMT Over current protection, Instantaneous Over current protection,
Earth Fault protection, etc. These measured values are also displayed on large 16 x 2 LCD
display for metering purpose. The DSC also monitors different digital input through optical
isolator and perform some monitoring function such trip circuit supervision, and control
potential free contact for control CB and generate ALARM and Tele-signalling.
The power supply module is basically DC – DC converted designed using modern PWM
based Switching mode technique to convert station battery supply to the 12V and 24Vdc low
voltage supply for relay electronics and control circuit. It also provides necessary isolation
from station battery. The power supply module is design using very advance PWM controller
which allow very wide input supply variation i.e 18V to 250VAC/DC covering 24Vdc, 30Vdc,
and 110Vdc and 220Vdc station battery requirement.
The relay is having total 4 nos of high intensity dual LED for easy identification of type of fault
for easy user interface. All LEDs and control output RL2 to RL4 are fully programmable via
keypad interface

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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2. Protection Features:
94 Element (3 Phase + EF) Non Directional Over current IDMT/DMT.
9Selection of Curve: Five selectable curve (Normal Inverse1 (C1), Normal Inverse2, (C2)
Very inverse (C3), Extremely inverse (C4), Long time inverse (C5)) and Define Time (C6)
9Instantaneous Over-Current Protection with adjustable timer.
9Breaker Failure detection.
9In-built CB Trip Circuit Supervision function during pre closing and post closing of CB.
9On site CT Secondary selection 1A or 5A.
9Internal calculation of zero seq. current (3Io) for Earth fault.
9Wide range Power supply input 18V to 250V AC/DC.
9Cold Load Pickup.
9RS485 communication Port with IEC 60870-5-103 protocol. [Only in ADR241C]
3. Relay Design Features:
916 x 2 LCD Backlit display for Parameter and setting display.
9Online display of CB status and other digital and logical status.
9Continuous monitoring of module’s internal hardware and alarm generation in case of
failure of any critical components.
94 Digital Output contacts for local alarm as Trip.
92 dedicated status input for Trip Circuit Monitoring.
98 nos of Fault data stored with keypad interface and time stamping.
916 Nos. of Event Log provided.
4. Main Functions:
The ADR141C are having following protection functions.
1. Non Directional phase Over current element. (Ip>, and Ip>> )
2. Non Directional 3Io (Internally derived EF) (3Io> and 3Io>>).
3. Trip Circuit Super vision.
4. Breaker Failure Detection.
5. Monitoring Functions.
Each of these functions are independently programmable and can be enable or disable by
user depending upon requirement.
4.1 Over Current & EF Element:
The ADR141C is member of Ashida Numerical Relay family design for protection general
feeder. The relay has one stage of IDMT/DMT setting and one stage of instantaneous setting.
(Ip>, IP>>, 3Io>, 3Io>>). All major international IDMT curves are available. Range for first
stage is 10% to 250% and 50% to 3000% for instantaneous stage for phase and 3Io.
Although the curves tend towards infinite when the current approaches Is (general threshold),

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 8/86
the minimum guaranteed value of the operating current for all the curves with the inverse time
characteristic is 1.1Is (with a tolerance of ± 0.05Is).
4.2 Inverse Time Curves :-
The each stage thresholds for phase (earth) over current can be selected with an Inverse
Definite Minimum Time (IDMT) characteristic. The time delay is calculated with a
mathematical formula
where
t = operation time
a = constant
I = Input current
Iref = Current threshold setting
b = Constant
K = Time multiplier setting or Time dial Setting
Curve Type Description a b
C1 Standard Inverse_1 0.14 0.02
C2 Standard Inverse_2 0.06 0.02
C3 Very Inverse 13.5 1
C4 Extremely inverse 80 2
C5 Long Time Inverse 120 1
C6 Define Time Inst 99.9 Sec
K * a
I b
Iref
[ ] - 1
t =

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 9/86

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page 10/86
4.3 Trip circuit Supervision:-
The ADR141C is having 2 separate digital opto-coupler status input which can be used to
continuously monitor continuity of trip-circuit. The general scheme is as shown in fig. 4.
Relay monitor Trip coil continuity through CB NO during close condition and through CB NC
during Trip condition. If any discontinuity observed it generate Alarm signal.
The output can be assigned to any of 4 relay RL1 to RL4, The Trip circuit supervision logic
set reset PROTH (Protection healthy) bit, it normally ON and become OFF at following
condition
9When DC supply is not sufficient (DC fail)
9When CB NO and CB NC both active or both inactive. CB NO as well as CB NC are both
close or open.
9Relay detects any internal hard ware Error.
B+
B-
TC
CB NO
CB NC
To Relay CPU
To Relay CPU
TCCOM
B+
B-
TC
CB NO
CB NC
Trip Circuit Logic
-
CB NO
-
1
2
1
2
6
6
B+
B-
TC
CB NO
CB NC
To Relay CPU
To Relay CPU
TCCOM
B+
B-
TC
CB NO
CB NC
Trip Circuit Logic
-
CB NO
-
1
2
1
2
6
6
4.4 Breaker Failure Detection:-
Normally after tripping current should become Zero within 100 – 200ms time depend upon
type of fault and breaker mechanism. After Fault ADR141C trigger internal timer (settable
from 50ms to 800ms) if fault is not cleared during this time then relay declare as Breaker fail
(LBB function) and set BF bit. This bit can be assigned to any of the output relay.
Breaker Fail Logic
OPERATION
BF
&&
DELAY
50ms to 800ms
TRIP
GENERAL
BF ENABLE
Breaker Fail Logic
OPERATION
BF
&&
DELAY
50ms to 800ms
TRIP
GENERAL
BF ENABLE

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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4.5 Cold Load pickup:-
When the Circuit breaker is closed on load, A load current take sudden inrush current. This
inrush current may be more than 4 to 5 times of rated load current. The duration can be as
high as 200ms. Due to this inrush current many times relay operates which is undesirable.
General practice is to keep normal setting to such high value so that it will not mal operate at
initial closing which result increase in fault clearance time. To avoid such problem relay is
equipped with special features known as cold load pickup.Whenever a circuit breaker is
turn on relay sense through CB auxiliary contact and start internal timer known as CL timer.
During this time it takes separate set of setting, so that relay will not mal operate on inrush
current
5. Construction Details
The relay is designed in flush mounting cabinet. The overall size of cabinet is 138 x 114 x
175mm Ref. diagram MAC01501.
6. Self Check Feature
The DSP used in relay is having major of it component are within the chip. The controller
check all the components which are outside of chip such as ADC, Non volatile memory used
for disturbance data, and event, non volatile memory used for relay setting, real time clock
etc. Relay checks its internal hardware after every hardware-reset press and periodically
ones per day. If any fault in hardware is detected the relay change contact marked as
PROTH and display error code on LCD display. Depend upon the component relay take
necessary action.
Following table summarized the type of fault and action taken by relay
Type of Fault
(Error code) Action
ADC Error
16 Most critical Error. Relay give error message and change
PROTH contact Relay use alternate ADC for OCR section
and OCR remain in protection
NV RAM used for
disturbance record
32 & 64
Generate Error signal and remain in protection change
PROTH contact
NV RAM use for
setting 2 Generate Error signal and remain in protection by assuming
default setting value. change PROTH contact
Setting Error 1 Generate Error signal and remain in protection by assuming
default setting value. change PROTH contact
RTC Error
4 & 8 Generate Error signal and remain in protection change
PROTH contact
Trip Ckt Supervision
Fail Error 128 Generate Error signal and remain in protection by assuming
default setting value. change PROTH contact

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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7. Technical data
7.1 Technical specifications
Sr. No. Specification Particulars
I. Current Input : Suitable for CT secondary 5Amp. Or 1Amp site selectable
II. Aux. Supply : 18 - 250VAC/DC.
III. VA burden on CT : Less than 0.2VA
IV. VA burden on Aux. : Less than 10 Watts
V. Operating Temp. range : -10 deg. To + 65 deg.
VI. Continuous carrying
capacity : 2 x of rated for CT and 1.5 x of rated for PT
VII. Pick up : Within 1.1 times of set value.
VIII. Reset Value : 95% to 90% of pick up.
IX. Output Contact : 4 Trip duty user assignable
X. Contact Rating : Continuous: 5A
: Make & carry for 0.5 sec : 30A
: Make & carry for 3 sec : 15A
XI. Opto Isolated input : 1 for CB NO & 1 for CB NC
XII. Thermal With stand for CT : 20 x of rated for 3.0 sec.
General Settings
XIII. General setting : New Password 0 – FFFF
: Unit Id 0 – 250 in steps of 1
: CT Sec 1A or 5A
: CT Primary 10 – 3000 in steps of 1
: Test Block 01: YES, 02: NO
: Trip Ckt. 01: YES, 02: NO
: BF Enable 01: YES, 02: NO
: BF Delay 50 - 800 ms steps of 50ms
: Baud Rate 1200 – 57600 (Only for ADR241C)
: Frequency 50Hz – 60Hz
Relay Settings
XIV. Phase Section (Ip) : IP> Settings 10% – 250% in steps of 1%.
: IP> Time Multiplier (TMS) x0.01 – x1.00 in steps of 0.01
: IP> Curve
(Operating Time) C1 – C6 ( IDMT curve C1 – C5 or Definite Time C6 )
: IP> C6 Delay 0.1 – 99.9 Sec in steps of 0.1Sec.
: IP>> Settings 50% – 3000% in steps of 50%
: IP>> Delay 0 – 2.00 Sec in steps of 0.01Sec.

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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XV. Earth Fault Section (3Io) : 3Io> Settings 10% – 250% in steps of 1%
: 3Io> Time Multiplier (TMS) x0.01 – x1.00 in step of 0.01.
: IE> Curve
(Operating Time) C1 – C6 ( IDMT curve C1 – C5 or Definite Time C6 )
: 3Io> C6 Delay 0.1– 99.9 Sec in steps of 0.1Sec.
: 3Io>> Settings 50% – 3000% in steps of 50%
: 3Io>> Delay 0 – 2.00 Sec in steps of 0.01Sec.
Cold Load settings
XVI. Phase Section (Ip) : CL Enable 01: YES, 02: NO
:CL Timer 0.01 - 2.00S in steps of 0.01 sec
: IP> Settings 10% – 250% in steps of 1%.
: IP> Time Multiplier (TMS) x0.01 – x1.00 in steps of 0.01
: IP> Curve
(Operating Time) C1 – C6 ( IDMT curve C1 – C5 or Definite Time C6 )
: IP> C6 Delay 0.1 – 99.9 Sec in steps of 0.1Sec.
: IP>> Settings 50% – 3000% in steps of 50%
: IP>> Delay 0 – 2.00 Sec in steps of 0.01Sec.
XVII. Earth Fault Section (3Io) : 3Io> Settings 10% – 250% in steps of 1%
: 3Io> Time Multiplier (TMS) x0.01 – x1.00 in step of 0.01.
: IE> Curve
(Operating Time) C1 – C6 ( IDMT curve C1 – C5 or Definite Time C6 )
: 3Io> C6 Delay 0.1 – 99.9 Sec in steps of 0.1Sec.
: 3Io>> Settings 50% – 3000% in steps of 50%
: 3Io>> Delay 0 – 2.00 Sec in steps of 0.01Sec.
Operational Indicators (Flags) 4 user assignable bi-colour output LED Default assignment
XVIII. LED1 - PROT.H /ON : Green LED indicates Relay OK (Protection Healthy)
: Red LED indicates Fault in following conditions.
1. Problem in relay Hardware.
2. Trip Circuit Fault
LED 2 - PICK-UP : Red LED indicate Start of timer Self Reset (SR) Type
LED 3 - FAULT : Red LED indicate Relay Operated Flag (HR)
LED 4 - TRIP : Green LED indicates Output TRIP relay contact closer (SR) Type
XIX. Drawing References
: For Typical External connection - ADV02702
: For Cabinet Type - MAC01501 (CSF)

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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7.2 Type Test Details
Sr. No. Title Standard no.
Electromagnetic Compatibility Type Test:
1. High Frequency Test : IEC 60255-22-1, class – III
: Frequency : 1MHz Damped Oscillatory
: Longitudinal :5 KV (peak)
: Duration: sec duration 2 sec.
: Between input current Terminal
2. Electrostatic Discharge
Direct Application : IEC 60255-22-2 Class III and IEC 61000-4-2 class III.
: Contact discharge: 6kV,
: Air discharge: 8KV
: Polarity: both +ve and –Ve polarities.
3. Indirect Application : IEC-61000-4-2, Class-III
4. Fast Transient
Disturbance
: IEC 60255-22-4 and IEC 61000-4-4, class A
: 1.2KV; 5/50ns; 5KHz burst duration = 15ms.
: Repetition rate 300ms; Both polarities; Ri = 50Ω; duration 1 min.
5. Surge Immunity Test
: IEC 60255-22-5 / IEC 61000-4-6 class 4
: Differential Mode = 2kV
: Common Mode = 4kV
: 1.2/50uS , 5 surges of each polarity
6. Power Frequency
Magnetic Field Test : IEC-61000-4-8, Class-V
7. Radiated
Electromagnetic Field
Disturbance
: IEC- 60255-22-3
: EN-61000-4-3
: Frequency 80MHz – 1GHz
8. Conducted Disturbance
Induced By Radio
Frequency Field
: IEC 60255-22-6 / IEC 61000-4-6: 1996.
: Freq. 150kHz – 80MHz, Amplitude 10 V, Modulation 80% AM
@ 1 KHz
9. AC Ripple In DC
Supply Test : IEC 60255-11
10. Radiated Emission : IEC 60255-25
Insulation Tests:
11. High Voltage Test
: IEC 60255-5. class – III
: At 2.5kV 50Hz between all terminal connected together and
earth for 1 minutes
12.
Impulse Voltage Test : IEC 60255-5. class – III
: Test voltage: 5KV (peak) 1.2 / 50us,
: Energy :0.5 J,
: Polarity : + ve and – Ve
: Nos. of impulses : 3 positive and 3 negative impulse
: Duration between Impulses : 5 sec.

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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Environmental tests:
13. Cold test Storage test : IEC 60068-2-1
14. Dry heat test : IEC 60068-2-2
15. Damp heat test, steady
state : IEC 60068-2-3
16. Damp heat test, cyclic : IEC 60068-2-30
Mechanical tests
17. Vibration
: IEC 60255-21-1 class 1
: Frequency Range = 10Hz – 150Hz, acceleration. = 1gn (9.8
m/s2)
: Sweep rate 1 octave/min; 20 cycle in 3 orthogonal axis.
18.
Bump Test : IEC 60255-21-2 Class-1
: 1000 bumps of 10gn peak acceleration and 16ms pulse
duration in each of the two opposite direction per axis as per
IEC 60255-21-2 class 1 No. of axes . 3.
19. Shock Withstand : IEC 60255-21-2 Clas-1
: 3 shocks of 15gn peak acceleration and 11ms pulse in each
of two opposite direction . No. of axis : 3
20.
Seismic Test : IEC 60255-21-3
: In single axis sine sweep in X-axis
sweep (@a sweep rate of 1 octave/minute) vibration in the
frequency range (5-40 Hz) at amplitude of 3.5mm or 1.0gn
(whichever is less)
: In single axis sine sweep in Y-axis
- sweep (@a sweep rate of 1 octave/minute) vibration in the
frequency range (5-40 Hz) at amplitude of 1.5mm or 0.5gn
(whichever is less)

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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8.0 Front Panel and Control
6 7 5 8
1
2
3
4
66 77 55 88
11
22
33
44
6 7 5 8
1
2
3
4
66 77 55 88
11
22
33
44
Fig. 4.1
Sr. No. Legend Description
LEDs
Total 4 bi-colors LED (Red and Green) are provided for user interface.
Some of LEDs are pre defined others are spare and can be programmed
as per the requirement. Following are pre defined LEDs
1 L1 ON : Green LED indicates Relay OK (Protection Healthy)
: Red LED indicates Fault in following conditions.
1. Problem in relay Hardware.
2. Trip Circuit Fault
2 L2 PKP : Red LED indicate Start of timer Self Reset (SR) Type
3 L3 FAULT
: Red LED indicate Relay Operated Flag (HR)
4 L4 TRIP : Green LED indicates Output TRIP relay contact closer (SR) Type
5 LCD display 16 character by 2 line back-lit LCD display will be provided for display of
settings / status and measured value such as line current etc.
6 LED
RESET/EDIT 1 Key provided for LED Reset / EDIT
7 HW Reset 1 key provided for Hardware reset.
This key will be interlocked with LED Reset / EDIT.
8 Navigation
Key 4 keys provided for navigation through different display menu and to do setting

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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8.1 USER INTERFACE
8.1.1 LCD Display
Back-lit LCD display 16 character by 2 line is provided for parameter and setting display and
for easy viewing of measurement, setting, fault records, date & time, error message. Back-lit
will automatically switch off if any push button key will not be pressed for more than 100sec.
The display back-lit can be made ON by pressing any push button key. Back-lit is also
automatically turned ON when any tripping occurs on particular equipment.
8.1.2 Touch Keys
The function of relay is controlled by the following keys, Left Arrow key (), Right Arrow key
(), Up Arrow key (+/), Down Arrow key (- /) and LED Reset Key and HW Reset Key
which are provided on the Front Plate.
•When the Right Arrow key () is pressed the operator is able to view the setting of the
relay. When the Right Arrow key () is pressed again it will go to the next setting page,
but in case there are no more setting to be displayed it returns to the main menu.
•When the Left Arrow key () is pressed than you are able to enter the setting which can
be now modified in the Main Menu using Up Arrow key (+/) Down Arrow key (- /).
When the Left Arrow key () pressed again it will go to the next setting.
•The Up Arrow key (+/) is used for two purposes: 1) () To scroll the Main Menu and
2) (+) To increment the value in the setting mode.
•The Down Arrow key (- /) is used for two purposes: 1) () To scroll the Main Menu and
2) (-) To decrement the value in the setting mode.
•The Left Arrow key () Right Arrow key () can be used to go forward or backward,
both when doing the settings and while viewing the settings
‘LED RESET/EDIT’ key
•‘LED RESET/EDIT’ key is used to Reset the Trip Flags.
•‘LED RESET/EDIT’ key is used to display the Curser while setting the Password and the
Relay Led Configuration.
•LED RESET/EDIT’ key is used to discard while doing the settings and abort to Main
Menu.
Note: At the time of setting if changes are not carried within 100s then the display will reset
itself and return to the main menu.
‘HW RESET’ key
‘HW RESET’ key is never require in normal operation, It is in series with ‘LED RESET/EDIT’
key, When both keys are pressed simultaneously it reset total hardware of relay. This
normally is required during firmware update of relay.

NUMERICAL OC/EF PROTECTION RELAY ADR141C/241C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
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8.1.3 LED’s
The relay is having total 4 nos of dual colour LED of high intensity for easy identification of
type of fault for easy user interface.
Sr. No. Legend Description
1 L1 ON : Green LED indicates Relay OK (Protection Healthy)
: Red LED indicates Fault in following conditions.
1. Problem in relay Hardware.
2. Trip Circuit Fault
2 L2 PKP : Red LED indicate Start of timer Self Reset (SR) Type
3 L3 FAULT
: Red LED indicate Relay Operated Flag (HR)
4 L4 TRIP : Green LED indicates Output TRIP relay contact closer (SR) Type
8.2 Password
8.2.1 Password Entry and changing the password
To enter password in all ADR141C refer following steps (User can go to this screen by
pressing HW RESET + LED RESET/EDIT Simultaneously
Password = 0001
Use Inr/Dec ⌃
To Enter the previously set Password
Press the LED Reset Key this will display the curser (⌃)
below the password digits at Extreme Right ( 0000 ) this
curser ( ⌃) can be shifted right to left and left to right using
the left arrow key () and Right Arrow key ().
By using the up arrow key ( + / )or the down arrow key ( - /
) a given value can be set for each of the digits. The range
is from 0 to F. (The range is from 0000 – FFFF)
General Settings
Password protected window for “General Setting’’ for
setting New Password, Unit ID, CT sec. CT primary, Test
Block, Trip Ckt, BF Enable BF Delay and Frequency.
Press the left arrow key () the relay will display as follows.
R= 0000 Y = 0000
B = 0000A
This is default window showing the actual Primary Load
Current as per “CT Sec” selection
Press the left arrow key () the relay will display as
follows.
Pri. Current
This window is showing Main menu.
Press the down arrow key (- /) the relay will display as
follows.