Deif Multi-line 2 User manual

DEIF
A/S
Option O1
Water turbine control
Multi-line 2 – version 2
4189340286F
SW version 2.4X.X
Description of options
•Description of option
•Functional description
•Parameter list
DEIF A/S, Frisenborgvej 33 Tel.: [phone], Fax: [phone]
DK-7800 Skive, Denmark E-mail: [email protected], URL: www.deif.com

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Table of contents
1. WARNINGS AND LEGAL INFORMATION........................................................................3
ELECTROSTATIC DISCHARGE AWARENESS.....................................................................................3
SAFETY ISSUES............................................................................................................................3
DEFINITIONS ................................................................................................................................3
2. DESCRIPTION OF OPTION ..............................................................................................4
OPTION O1..................................................................................................................................4
TERMINAL DESCRIPTION ...............................................................................................................4
WIRING........................................................................................................................................6
3. FUNCTIONAL DESCRIPTION...........................................................................................8
TURBINE OPERATION....................................................................................................................8
WATER LEVEL REGULATION ..........................................................................................................8
REGULATION PRINCIPLE..............................................................................................................10
JET DEFLECTOR .........................................................................................................................12
TURBINE REGULATION ................................................................................................................14
SEQUENCES...............................................................................................................................15
DIGITAL INPUT............................................................................................................................16
INHIBIT.......................................................................................................................................17
4. PARAMETER LIST ..........................................................................................................19
This manual is valid for standard multi-line 2 PPU/GPC units with firmware version 2.32.0 or later.

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1. Warnings and legal information
DEIF takes no responsibility for installation or operation of the generator set. If there is any doubt
about how to install or operate the generator set controlled by the unit, the company responsible
for the installation or the operation of the set must be contacted.
Electrostatic discharge awareness
Sufficient care must be taken to protect the terminals against static discharges during the
installation. Once the unit is installed and connected, these precautions are no longer necessary.
Safety issues
Installing the unit implies work with dangerous currents and voltages. Therefore, the installation
should only be carried out by authorised personnel who understand the risks involved in working
with live electrical equipment.
Definitions
Throughout this document a number of notes and warnings will be presented. To ensure that these
are noticed, they will be highlighted in order to separate them from the general text.
Notes
Warning
The notes provide general information which will be helpful for the reader to
bear in mind.
The warnings indicate a potentially dangerous situation which could result in
death, personal injury or damaged equipment, if certain guidelines are not
followed.
Be aware of the hazardous live currents and voltages. Do not touch any AC
measurement inputs as this could lead to injury or death.
The units are not to be opened by unauthorised personnel. If opened anyway, the
warranty will be lost.

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2. Description of option
This document contains information about the water turbine control contained in option O1.
Option O1
Function ANSI no.
3 x 4...20mA inputs with alarms/shutdowns 77
1 x 4...20mA inputs with for indication 77
Option O1 can be combined with option M1 or M2.
Terminal description
Slot #8, 4-20mA input PCB
Term. Function Description
126 Input 5 common Common
127 Analogue input 5+ 4-20mA in for water level control
128 Input 6 common Common
129 Analogue input 6+ 4-20mA in
130 Input 7 common Common
131 Analogue input 7+ 4-20mA in
132 Input 8 common Common
133 Analogue input 8+ 4-20mA in
The 4-20mA input no. 5 must be used for water level input. The 4-20mA inputs
no. 6, 7 and 8 can only be used as alarm inputs.
This option is only available for the GPC and the PPU.
If the generator is an asynchronous generator then option M1 or M2 must be
used at the same time as option O1!

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Slot #1, power supply PCB
Term.
Function Technical data Description
1 +12/24V DC 12/24V DC
-25/+30% Power supply
2 0V DC
3 NC Status relay Normally closed relay, processor/power supply
status supervision
4 Com. 24V / 1A
5 NO Relay 1 Configurable/jet deflector operation
6 Com. 250V AC / 8A
7 NC
8 NO Relay 2 Configurable
9 Com. 250V AC / 8A
10 NC
11 NO Relay 3 Configurable
12 Com. 250V AC / 8A
13 NC
14 NO Relay 4 Open breaker (deload)
15 Com. 250V AC / 8A Can be configured for tripping also
16 NC
17 NO Relay sync. Close breaker (synchronising)
18 Com. 250V AC / 8A
19 NC
20 Open
collector 1 Transistor out Pulse output 1, kWh counter
21 Open
collector 2 Transistor out Pulse output 2, kvarh counter
22 Com. Common Common terminal for terminals 20 and 21
23 Binary input Optocoupler Remote alarm inhibit/configurable
24 Binary input Optocoupler Remote alarm acknowledge/configurable
25 Binary input Optocoupler Start sync./control functions/configurable
26 Binary input Optocoupler Ext. communication control/configurable
27 Binary input Optocoupler Block loss of mains/configurable
28 Com. Common Common for terminals 23-27
The PCB in slot #1 is installed in all GPC and PPU units. It is shown in this
document because the jet deflector relay and feedback is placed on this PCB
(terminal 23, 24, 26 or 27).
Terminal 25 cannot be used for jet deflector feedback.

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Wiring
Relay output turbine valve control
Tu rb i n e
G
AVR
567
Re la y 1
Jet Deflectors
Multi-line 2
17
18
19
14
15
16
GCB
Re la y 4
Open GCB
Syn c .
3
3
Valve 1
Valve 2
Valve 3
Valve 4
3
+ 24VDC
BUSBAR
Sta rt
Sync /
Contr. Deload
25 43
65 66
67 68
127
126
4...20mA
Wa t e r
Leve l
Speed Up
Sp e e d Do w n
Jet Deflector
Feedback
23 or
24 or
26 or
27
Closed
28
56

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Analogue output turbine valve control
Turbine
G
AVR
567
Re la y 1
Jet Deflectors
Multi-line 2
17
18
19
14
15
16
GCB
Re la y 4
Open GCB
Syn c .
3
3
Valve 1
Va lve 2
Valve 3
Valve 4
3
+24VDC
BUSBAR
Sta rt
Sync /
Contr. Deload
Jet Deflector
Feedback
25 43
127
126
4...20mA
Wa t e r
Level
23 or
24 or
26 or
27
Closed
66 6766 67
70 71
91 92
95 96
28
56

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3. Functional description
Option O1 contains three main functions.
1. Water level control
2. Jet deflector control
3. Modified regulation
These functions can be used in a combination or separately.
Turbine operation
The turbine can be controlled by the multi-line 2 in five different ways. This depends on the
mode selection on the unit. The table shows the running modes depending on the mode setting.
Mode inp.
Running mode
Mode 1
Terminal 48 Mode 2 Terminal 49 Comment
Fixed frequency OFF OFF
Fixed power ON OFF Menu 4131 must be OFF
Droop OFF ON
Load sharing ON ON
Fixed water level control ON OFF Menu 4131 must be ON
Water level regulation
The water level regulation must be used if the regulation depends on the water level in the
reservoir which contains the water that drives the turbine.
Activate water level control
To activate the water level regulation, the mode input 1 must be activated and the menu 4131
must be adjusted to ON (see the table above).
Transducer setup
The 4-20mA transducer must be connected to terminals 126/127 (see the I/O list above). The
setup is done in the system setup as well as in the input setup.
A further description of the general running modes can be found in the
Designer’s Reference Handbook.
Water level control requires a 4-20mA transducer.

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System setup
The values corresponding to 4mA and 20mA must be adjusted in the menus 4042 and 4043.
Menu Description Comments
404X Water level nominal This value corresponds to the 20mA value of the transducer.
404X Water level minimum This value corresponds to the 4mA value of the transducer.
This can be adjusted from the USW or from the display.
The 4mA value can be adjusted negative. This is to be able to stop the
regulation (see the description of ‘Water level regulation’ on page 10).

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Input setup
The scaling of the transducer can be adjusted in the input setup, menu 3520.
Regulation principle
Principle
When the regulation is started, the multi-line 2 will regulate the power according to the water
level and the fixed power set point.
The below drawing illustrates how the regulation works:
1. The power set point is set to 90% (menu 4041).
2. The water level transducer gives 20mA when the water level is above 180% (menu
404X).
3. The water level transducer gives 4mA when the water level is below -60% (menu 404X).
This can only be adjusted from the USW.
Adjust the water level
corresponding to the 20mA
value.
Adjust the water level
corresponding to the 4mA value.
The input can only be scaled in percent.
If the scaling is not done according to the specific application, the regulation
will work but the display reading will be false.
When the turbine is running and the regulation is activated, the power of the
gen-set will depend on the available water level.

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Water level above normal
When there is plenty of water in the reservoir, the transducer will give 20mA output. This means
that the power of the gen-set will be maintained at the PSET (menu 4041).
Water level below normal
Because the water level is below normal level, the power of the gen-set will be decreased
according to the slope of the transducer curve that is adjusted in the menu 404X/404X. In the
drawing below, the power will be adjusted from the set point ‘PSET‘ (menu 4041) and downwards
to 25%.
Operating range
The operating range of the turbine can be reduced in the lower end by adjusting the 4mA value
to a negative value. The power will not be regulated into the area where the water level is
negative. (The purpose of this is partly to avoid the generator to go into reverse power and partly
to keep the turbine in the economic operating range.)
The operating range of the turbine can be reduced in the high end by decreasing the PSET (menu
4041) to a lower value.
Power %
Water level %
100
50
50 100 150 200-50-100 250
Pset (4041)
Water set nom. (4044)
Water set min. (4045)
Generatorproducedpower
The regulation stops when the percentage of the water level goes negative. In
this example this means that the minimum output from the turbine is 25%.
Before the GPC/PPU enters the water level control it will go into the ramp up
sequence using the settings in menus 2141 and 2142.

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Jet deflector
In principle, the jet deflector is a 3-way valve intended to bypass the water flow in case there is a
generator shutdown.
Principle
Normally, the jet deflector is ‘closed’ (water flow led to the turbine) and held closed by a holding
magnet. In case of shutdown, the jet deflector magnet is deactivated, and the jet deflector
immediately changes to ‘open’ (water bypass) position.
The principle looks like this (jet deflector shown in ‘closed’ position):
Jet deflector
Water inlet
To turbine
bypass
Holding
magnet
Moving
weight
Closed position
Open position
Relay selection
The relay used for the jet deflector is the relay 1. (Terminal 5, 6, 7 - see extract from I/O list
below).
Term.
Function Technical
data Description
5 NO Relay 1 Configurable/jet deflector operation
6 Com. 250V AC / 8A
7 NC
If the jet deflector is moved to the ‘open’ position, it must be set back to ‘closed’
position manually.
Use the jet deflector feedback to indicate when the deflector is closed.

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Relay functionality
The relay output for the jet deflector will either open the jet deflector or keep it in the closed
position. When the deflector must open, relay 1 will change position to 5/6, thus disconnecting
the current flow through 6/7.
The purpose of using the status relay is to open the deflector whenever the multi-line 2 is without
power or when the watch dog of the device detects a fault.
The status relay is a normally closed relay. When the GPC/PPU is in good
functioning condition the relay is energized.
The status relay is only for DC voltage.
When the multi-line 2 is without power, relay 1 output will be in the ‘closed’
deflector valve position.
To open the deflector valve, use the status relay or open it by other means.
The multi-line 2 will hold the deflector valve closed except in shutdown
situations.

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Turbine regulation
Relay controls
Because the regulation of bigger water turbines is relatively slow, some maximum regulation
settings are increased:
•Maximum synchronisation failure timer (menu 2061) is increased to 3000.0 s.
•Relay output period time (menu 2252) is increased to 32500 ms.
Analogue controls
The analogue output(s) can handle up to 4 analogue outputs for control valves and/or voltage
regulator. This is adjusted in the menu 4950.
The output combinations are shown in the table:
Option D1 NOT selected Option D1 selected
Function
Output Cascade Voltage control Cascade Voltage control
Output 66/67 X X
Output 70/71 X X
Output 91/92 X X
Output 95/96 X
Not
available X
Analogue control valves, parallel w. mains generator
The cascade works like this:
At turbine start, all outputs are 0mA. As the speed/load set point increases, the cascade #1 will
give increasing signal until reaching 20mA. At this point, cascade #2 will take over and increase
its output until 20mA, and so on. When the turbine is stopped the sequence is reversed.
The output sequence looks like this in a situation where all cascades open:
If analogue outputs are needed, then order option E1 for two analogue outputs
and option E1 + F1 for 4 analogue outputs in total.

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There can be up to 4 analogue outputs for cascade control of valves.
Analogue control, stand-alone generator with load control
If the generator is a stand-alone (typical for micro synchronous water turbines), the RPM is often
controlled with variable loads (thyristor controlled resistive loads).
In this case, the analogue outputs can be inverted so that the analogue output will decrease in
case an increased RPM is needed. In this case, the output curves look like this:
There can be up to 4 analogue outputs for cascade control of loads.
Sequences
Turbine start
Due to the slow start-up of a turbine, the function in menu 2255 ‘Turbine start timer’ has been
added. The turbine start function can be used in connection with relay outputs only.
This timer represents the time where the speed UP signal is active if no speed is detected during
start-up of the turbine. (Running detection is the frequency measurement or pick-up tacho input).
20 mA
Power/speed
demand
Output
Cascade #1 Cascade #2 Cascade #3 Cascade #4
0 mA
20 mA
Speed
demand
Output
Cascade #1 Cascade #2
Cascade #3
Cascade #4
0 mA

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When the timer expires, the speed UP signal deactivates and the GPC/PPU awaits the running
feedback before it resumes regulating.
The UP signal is deactivated after a specific time to prevent overspeeding of the turbine.
The timer can be adjusted to zero (factory setting) if this function is not required.
Start sequence
The start sequence consists of 4 steps:
1. Deflector valve(s) closed feedback ON
2. Open control valve 1, synchronising
3. Breaker closes
4. Power (and possibly power factor) control for parallel w. mains or frequency control for
island
Stop sequence
The stop sequence consists of three steps:
1. Ramp down generator to load 0 kW
2. Open breaker
3. Close all control valve(s)
Shutdown sequence
The shutdown sequence consists of three steps:
1. Generator breaker trip
2. Jet deflector open (bypass water flow)
3. Shut control valves
Digital Input
The inputs can be configured in the PC utility software. The following function is special for
option O1.
Terminal
Input function Input type
Const./Pulse
23, 24, 26, 27 Jet deflector
The timer setting must be found during the commissioning.
Pick-up input is only available when option M1 or M2 is selected.

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Functional description
Jet deflector
The jet deflector input is used when the GPC/PPU controls the opening of the jet deflector.
Configuration
The input functions are activated using a binary input. The input must be chosen in the PC utility
software. (Select the menu ‘Settings’/’Inputs/Outputs’ or press the icon on the horizontal toolbar).
When selecting ‘Inputs/Outputs’, this dialog box appears:
In the example of the configuration above, the ‘Deflector closed’ feedback can be changed to
terminals 23, 24, 26 or 27.
Inhibit
The inhibit functionality is described in the Designer’s Reference Handbook. The functionality
varies if the inhibit has been configured manually through the configuration tool in the USW.
Not running
When the protections are configured to ‘Not running’, then the alarms are activated when the
frequency measurement is fNOMINAL –1Hz, typically 49Hz or 59Hz.

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When stopping the turbine, the alarms will not be deactivated before the
generator voltage has dropped to 30 % * UNOMINAL.

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4. Parameter list
2250 Turbine start
No. Setting Min. setting Max. setting Factory
setting
2255 Turbine start timer Time 0 s 100 s 0 s
3520 4-20mA in. no 5.1
No. Setting Min. setting Max. setting Factory
setting
3521 4-20mA in no. 5.1 Set point 0.0% 250.0% 10.0%
3522 4-20mA in no. 5.1 Time 0.2 s 100.0 s 10.0 s
3523 4-20mA in no. 5.1 Relay output A R0 (none) R2
3524 4-20mA in no. 5.1 Relay output B R0 (none) Option
dependent R0
3525 4-20mA in no. 5.1 Enable OFF ON OFF
3530 4-20mA in. no 5.2
No. Setting Min. setting Max. setting Factory
setting
3531 4-20mA in no. 5.2 Set point 0.0% 250.0% 10%
3532 4-20mA in no. 5.2 Time 0.2 s 100.0 s 10.0 s
3533 4-20mA in no. 5.2 Relay output A R0 (none) R2
3534 4-20mA in no. 5.2 Relay output B R0 (none) Option
dependent R0
3535 4-20mA in no. 5.2 Enable OFF ON OFF
4040 Power settings
No. Setting Min. setting Max. setting Factory
setting
4041 Controller settings P Fixed power set point 0% 100% 100%
4042 Controller settings
var Fixed var set point 0% 100% 30%
4043 Controller settings
PF Fixed PF set point 0.60 1.00 0.90
4044 Controller settings W Water level nominal 0% 250% 100%
4045 Controller settings
Wmin Water level min. -100% 250% 0%
4130 Water level indication
No. Setting Min. setting Max. setting Factory
setting
4131 Water level in. Enable OFF ON OFF
DEIF A/S reserves the right to change any of the above