Ice AP901S User manual

Instruction manual –AP901S Arc Protection Unit 2 (43)
A1027A
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Date
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Written by
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12/09/2018
First issue
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Read these instructions carefully and inspect the equipment to become familiar with it
before trying to install, operate, service or maintain it.
Electrical equipment should be installed, operated, serviced, and maintained only by
qualified personnel. Local safety regulations should be followed. No responsibility is
assumed by ICE for any consequences arising out of the use of this material.
We reserve right to changes without further notice.

Instruction manual –AP901S Arc Protection Unit 3 (43)
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TABLE OF CONTENTS
1ABBREVIATIONS ............................................................................................................. 5
2GENERAL......................................................................................................................... 6
2.1 Arc protection unit AP901S features......................................................................... 6
2.2 Simplified block diagram .......................................................................................... 8
3OPERATION AND CONFIGURATION.............................................................................. 9
3.1 LED indicator functions ............................................................................................ 9
3.2 LED Operation Quick Guide................................................................................... 10
3.3 Push-button description.......................................................................................... 11
3.3.1 Auto configuration (system setup)..................................................................... 11
3.4 Reset ..................................................................................................................... 12
3.5 Dipswitch settings .................................................................................................. 12
3.5.1 Scheme select dip-switch settings .................................................................... 14
3.6 Non-volatile memory .............................................................................................. 24
4ARC SENSORS .............................................................................................................. 25
4.1 Sensor Type Dependencies ................................................................................... 25
5SYSTEM SELF-SUPERVISION ...................................................................................... 26
6APPLICATION EXAMPLES ............................................................................................ 27
6.1 MV or LV Double Busbar application with current and light condition ..................... 27
7CONNECTIONS.............................................................................................................. 29
7.1 Outputs .................................................................................................................. 30
7.1.1 Trip relays T1, T2 and T3.................................................................................. 30
7.1.2 Binary output BO1, BO2 and BO3 .................................................................... 30
7.1.3 System failure relay SF..................................................................................... 30
7.2 Inputs ..................................................................................................................... 30
7.2.1 Arc sensor channels S1, S2, S3, and S4 .......................................................... 30
7.2.2 Binary inputs BI1, BI2, BI3, BI4, BI5 and BI6 .................................................... 31
7.3 Auxiliary voltage..................................................................................................... 31
8WIRING DIAGRAM ......................................................................................................... 32
9DIMENSIONS AND INSTALLATION............................................................................... 33
10 TESTING ........................................................................................................................ 35
10.1 Carrying out testing in light only mode.................................................................... 35
10.2 Carrying out testing in light and current mode ........................................................ 36
10.3 Testing arc flash protection unit operation time ...................................................... 37

Instruction manual –AP901S Arc Protection Unit 4 (43)
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10.4 Test plan example.................................................................................................. 38
11 TROUBLESHOOTING GUIDE ........................................................................................ 39
12 TECHNICAL DATA ......................................................................................................... 40
12.1 Protection............................................................................................................... 40
12.2 Auxiliary voltage..................................................................................................... 40
12.3 Trip relays T1, T2, T3............................................................................................. 40
12.4 Binary Output BO1, BO2 and BO3 ......................................................................... 40
12.5 Binary Inputs BI1, BI2, BI3, BI4, BI5 and BI6.......................................................... 41
12.6 Disturbance tests ................................................................................................... 41
12.7 Voltage tests .......................................................................................................... 41
12.8 Mechanical tests .................................................................................................... 42
12.9 Casing and package .............................................................................................. 42
12.10Environmental conditions ....................................................................................... 42

Instruction manual –AP901S Arc Protection Unit 5 (43)
A1027A
1ABBREVIATIONS
CB –Circuit breaker
CBFP –Circuit breaker failure protection
EMC –Electromagnetic compatibility
EPROM –Erasable programmable read only memory
HW –Hardware
LED –Light emitting diode
LV –Low voltage
ms –Millisecond
MV –Medium voltage
NC –Normally closed
NO –Normally open
SF –System failure
SW –Software
uP - Microprocessor

Instruction manual –AP901S Arc Protection Unit 6 (43)
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2GENERAL
AP901S is a sophisticated micro-processor based arc flash protection unit including complete
self-supervision functionality. It is designed to minimize the damage caused by an arcing fault
(arc flash) by tripping the circuit breaker sourcing the fault current. The AP901S complete
system self-supervision function provides the highest level of dependability by continuously
monitoring all internal system functions along with external connections.
AP901S is designed according to the latest protection relay standards and is hence suitable
for installations in rough environments, such as utility, traditional or renewable power plants,
off shore, marine, oil and gas, mining, steel or any other heavy industry applications and as
well commercial and institutional electrical systems. AP901S is suitable for either medium
voltage or low voltage switchgear and motor control centre applications in both new and retrofit
installations.
2.1 ARC PROTECTION UNIT AP901SFEATURES
AP901S is a multipurpose arc flash protection unit and can be applied for variety of applications
that requires a large number of data communication. AP901S can be used as a stand-alone
unit or as part of a more complex arc protection system through the binary bus. Main features
of AP901S, see Figure 2-1:
-80-265Vac/dc auxiliary power supply or optional 18-72Vdc power supply
-4 arc point sensor channels
-6 binary inputs (nominal voltage of 24 or 110 or 220Vdc)
-3 normally open trip relay outputs (direct trip circuit rated)
-3 binary outputs (24Vdc)
-1 system failure relay output
-17 Indication LEDs
-Push-button

Instruction manual –AP901S Arc Protection Unit 7 (43)
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Figure 2-1: AP901S Arc protection IO unit

Instruction manual –AP901S Arc Protection Unit 8 (43)
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2.2 SIMPLIFIED BLOCK DIAGRAM
AP901S simplified block diagram in Figure 2-2 shows the main components of the AP901S
unit.
Figure 2-2: AP901S simplified block diagram

Instruction manual –AP901S Arc Protection Unit 9 (43)
A1027A
3OPERATION AND CONFIGURATION
3.1 LED INDICATOR FUNCTIONS
AP901S contains 17 indication LEDs. A user definable text pocket can be slid in for identifying
each LED function (except Power and Error LEDs). LED’s are located at the front plate of the
unit for clear viewing without a need for opening doors.
During power up the unit performs a LED-test. All LEDs are turned on for 2 seconds and then
back off. Only the blue power LED will remain on. When powered up, the unit goes in 50ms
into protection mode even while the LED test is being performed.
In normal operation only the blue power LED is ON.
The sensor LEDs in inactive condition are off. If an arc sensor is activated the corresponding
sensor channel LED will turn on if the activation is longer than 1.5ms. The sensor LED
activation function is latched (steady light). To clear the LED the “SET” button should be
pressed.
In case of a loose sensor wire and binary inputs wire or configuration mismatch (new sensor
attached without running auto-configuration system setup, see chapter 3.3.1) situation the
corresponding LED will start flashing and the ERROR LED will activate.
The Binary I/O LEDs are indicating the I/O-line status. If any of the lines become active for
more than 1.5ms the corresponding LED will turn on (latch).
In trip situation the corresponding trip LED will turn on. Trip outputs are controlled by dipswitch
settings. (See chapter 3.5)
All activation and trip indication LEDs are latched, even if the dipswitch setting is in non-latched
mode. They have to be cleared by pushing the “SET” button.
LED indications are stored in non-volatile EPROM memory for identifying the trip information
in case the auxiliary power is lost. When re-powering the unit after power supply loss the actual
LED status can be visualized from the front of the unit.

Instruction manual –AP901S Arc Protection Unit 10 (43)
A1027A
3.2 LED OPERATION QUICK GUIDE
LED
OFF
STEADY
ON
BLINKING
ACTION IF ABNORMAL
POWER
Blue
Auxiliary supply
disconnected
Auxiliary power
connected
N/A
Check the power source
ERROR
Red
System healthy
System failure
Configuration
mismatch. Protection
partly operational
Verify system condition. see chapter
11: Troubleshooting guide and
chapter 5: System self-supervision
T1,T3
Red
Normal status
Trip relays T1,T3
activated
N/A
Check the reason for trip. Clear the
fault and reset indications by pushing
SET button
T2, T3
Red
Normal status
Trip relays T2,T3
activated
N/A
Check the reason for trip. Clear the
fault and reset indications by pushing
SET button
BI1
Amber
Normal status
Binary input 1
activated
Binary input 1 loose
connection
Check the binary input wiring.
BI2
Amber
Normal status
Binary input 2
activated
Binary input 2 loose
connection
Check the binary input wiring.
BI3
Amber
Normal status
Binary input 3
activated
Binary input 3 loose
connection
Check the binary input wiring.
BI4
Amber
Normal status
Binary input 4
activated
Binary input 4 loose
connection
Check the binary input wiring.
BI5
Amber
Normal status
Binary input 5
activated
Binary input 5 loose
connection
Check the binary input wiring.
BI6
Amber
Normal status
Binary input 6
activated
Binary input 6 loose
connection
Check the binary input wiring.
BO1
Amber
Normal status
Binary Output
activated
N/A
BO2
Amber
Normal status
Binary Output
activated
N/A
BO3
Amber
Normal status
Binary Output
activated
N/A
S1
Amber
Normal status
Sensor channel 1
activated by light
information
Sensor channel 1
loose connection or
system set-up not
performed; also
activated by pressure
information
Check why sensor activated or check
the sensor wire connection or
perform system set-up (see chapter:
3.3.1 Auto configuration (system
setup)
S2
Amber
Normal status
Sensor channel 2
activated by light
information
Sensor channel 2
loose connection or
system set-up not
performed; also
activated by pressure
information
Check why sensor activated or check
the sensor wire connection or
perform system set-up (see chapter:
3.3.1 Auto configuration (system
setup)