Kuhse KEA 201 SPL User manual

_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
Service Manual
for product: KEA 201 SPL:
Power Control Unit for Emergency and
Peak Load Gensets with overlapping Synchronisation
File: SA_KEA 201 SPL_EN_Ver 2016-07-01 (replaces Version 2014-12-19)
_____________________________________________________________________________________
1. Design
The control unit is incorporate into the front door of the switchboard. When installed, the front meets the
protection class IP 44. The two rows of LEDs are marked with interchangeable labels. The relay units
are mounted on the mounting plate and linked to the control unit in the door with the supplied cable.
The control unit has an optical fibre and a USB interface for the connection of a PC. Only one of them can
be used at a time
1.1. Parameterisation
With the parameterisation software PARAWIN, the following settings (password-protected) and analogue
readouts are possible.
1. Additional Interface CAN
2. Additional Parameters
3. Alarm Remote Erasure
4. Alarms
5. Analogue Inputs
6. Analogue Outputs
7. Battery Monitor
8. CAN 0
9. Frequency Controller at isolated Operation
10.Generator Current Monitor
11.Generator Voltage Monitor
12.Hardware
13.Internal Synchroniser
14.J1939 engine management
15.J1939 Hide analogue values
16.Load Controller
17.Mains Voltage Monitor
18.Modem
19.Power Factor Controller
20.ProMerk. programmable Flags
21.Reference Load Regulation
22.Relay and Indicator Functions
23.Speed Monitoring and Control
24.Sprinkler Operation
25.Starting and Stopping
26.Transfer Mains –Generator
27.VDE-AR-N 4105 Protection for Parallel Operation
28.Voltage Controller
Parameterisation can also be performed at the display.

2 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 2 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
1.2. Analogue Readouts
Actual values:
-Mains: Voltages and frequencies
-Generator: voltages, frequencies, current, active and apparent power, PF (for L2)
-Engine speed
-Battery voltage
-Values of the four analogue channels
-Actual status of relays
-Counter, e.g. for Hours of operation until maintenance
-Actual values via CAN, e.g. temperatures and other data from motor, fuel, oil, coolant, battery
and environment
Present alarms, in total 64 alarms –for generator, oil, engine, mains, etc.
Voltage monitor:
-L1, L2 and L3 for mains and generator
-Voltage, phase vector, phase angle, frequency
Signals on the input terminals
Outputs: Status of relays
Other Values
Commands Telealarm
2. Amendments
Created
Amendments
Version
2014-12-15
Translation from German Version 2014-10-21
2014-10-21
2014-12-19
“Enabling Mains Parallel Operation”: section “Setpoint for Power” added
2014-12-18
2016-07-05
- Technical Data: Corrected: Optical fibre or USB interface –with automatic switching
–for parameterisation 2. Removed: Option in preparation: GSM modem
- Last page: Added: Drilling Template, Scale 1:1 (was down-scaled before)
2015-02-10

3 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 3 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
3. Contents
1. Design........................................................................................................................................................1
1.1. Parameterisation ................................................................................................................................1
1.2. Analogue Readouts............................................................................................................................2
2. Amendments.............................................................................................................................................2
3. Contents....................................................................................................................................................3
4. Safety Instructions ...................................................................................................................................5
4.1. Regulations and Instructions..............................................................................................................5
4.2. Installation and Commissioning..........................................................................................................5
4.3. Connections........................................................................................................................................5
4.4. Battery and Supply voltage.................................................................................................................5
4.5. Inductors.............................................................................................................................................5
5. Connection................................................................................................................................................5
5.1. Operating the Display.........................................................................................................................6
5.2. Setting the Display Contrast...............................................................................................................6
6. PIN Number, Ident-Number......................................................................................................................7
7. Parameterisation Menu Structure...........................................................................................................7
8. Alarm Monitoring......................................................................................................................................8
8.1. Description..........................................................................................................................................8
8.2. Alarm Announcing and Acknowledgement.........................................................................................9
8.3. Explanation of Alarms.........................................................................................................................9
8.3.1. Engine keeps running................................................................................................................................9
8.3.2. Engine fails to start ...................................................................................................................................9
8.3.3. Engine fault ...............................................................................................................................................9
8.3.4. Overspeed.................................................................................................................................................9
8.3.5. Alarms 13 and 14 ......................................................................................................................................9
8.3.6. Battery voltage Monitor .........................................................................................................................10
8.3.7. Analogue Input Alarms ...........................................................................................................................10
8.3.8. Mains CB tripped ....................................................................................................................................10
8.3.9. Mains CB does not cut off.......................................................................................................................10
8.3.10. Generator CB tripped..............................................................................................................................10
8.3.11. Generator CB does not cut off ................................................................................................................10
8.3.12. Alarms of the voltage monitors ..............................................................................................................10
8.3.13. Monitoring of the currents .....................................................................................................................10
8.3.14. Synchronisation failure ...........................................................................................................................10
8.3.15. Load controller failure ............................................................................................................................10
8.3.16. PF controller failure ................................................................................................................................11
8.3.17. Reverse power ........................................................................................................................................11
8.3.18. Running hours till Maintenance elapsed ................................................................................................11
8.3.19. Maintenance period exceeded ...............................................................................................................11
9. Mains Failure Protection in Parallel Operation....................................................................................11
9.1. Monitoring Deviations in Voltage and Frequency.............................................................................11
9.2. Vector Shift.......................................................................................................................................11
9.3. Sealing the Setpoints........................................................................................................................12
9.4. Mains Failure Protection according to E VDE-AR-N 4120...............................................................12
10. Mains Reference Load Control Operation ...........................................................................................12
11. Peak Load Operation Mode ...................................................................................................................13
12. Mains Operator’s Load Levels ..............................................................................................................13

4 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 4 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
13. Enabling Mains Parallel Operation .......................................................................................................13
13.1. Description........................................................................................................................................13
13.2. Setpoint for Power............................................................................................................................14
14. Mains Recovery in Peak Load Operation.............................................................................................14
15. Power Control.........................................................................................................................................14
15.1. Frequency Range 50.2 - 51.5 Hz .....................................................................................................14
16. Controlling Reactive Power...................................................................................................................15
17. Sprinkler Operation................................................................................................................................15
18. Connection of Relay Unit RZ 071-D......................................................................................................15
Terminals 1–14: Input for alarms signals. ................................................................................................................15
Terminal 15: Feedback signal: MAINS CB IS OFF..........................................................................................................15
Terminal 16: Feedback signal: GENERATOR CB IS OFF...................................................................................................16
Terminal 17: Operation mode selection is locked....................................................................................................16
Terminal 18: Remote start with Load Transfer. .......................................................................................................16
Terminal 19: IMMEDIATE STOP. ....................................................................................................................................16
Terminal 20: Overlapping synchronisation active. ...................................................................................................16
Terminal 21: Peak Load Command...........................................................................................................................16
Terminal 22: Disabled regulation of mains reference load ......................................................................................16
Terminal 23: Sprinkler mode. ...................................................................................................................................16
Terminal 24: Start enable input. ..............................................................................................................................16
Terminal 25: Remote start without Load Transfer. ..................................................................................................16
Terminal 26: External command :GENERATOR OFF......................................................................................................16
Terminal 27: Power Control in Peak Load Operation...............................................................................................17
Terminal 28: Power Control in Peak Load Operation...............................................................................................17
Terminal 29: Charging Dynamo, terminal D+. ..........................................................................................................17
19. Flags for Alarm Inputs and Relays .......................................................................................................17
20. Technical Data ........................................................................................................................................20
20.1. KEA Controller..................................................................................................................................20
20.2. Analogue Inputs and Outputs...........................................................................................................20
20.3. Relay Unit RZ 071-D ........................................................................................................................20
20.4. Relay unit RZ 071-E (optional).........................................................................................................20
20.5. Serial interfaces................................................................................................................................20
20.6. Connection to other Systems (optional) ...........................................................................................20
21. Diagrams .................................................................................................................................................21
21.1. Response Diagram for Thermal Overload........................................................................................21
21.2. Connection Diagram, RZ-071-D.......................................................................................................22
21.3. Connection Diagram, RZ-071-E (optional).......................................................................................23
21.4. Connection Diagram, KEA 201 SPL.................................................................................................23
21.5. Connections, analogue Inputs..........................................................................................................24
21.6. Door Cross Section of KEA, Frontview ............................................................................................24
21.7. Controller PCB with Jumper for Sealing Setpoints...........................................................................25
22. Drilling Template, Scale 1:1 –print without scaling!..........................................................................26

5 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 5 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
4. Safety Instructions
4.1. Regulations and Instructions
1. The relevant regulations, especially the VDE regulations, must be observed.
2. The device must be parameterised in such a way that any risk to persons or property is prevented.
4.2. Installation and Commissioning
Only adequately qualified personnel should undertake the installation and commissioning.
4.3. Connections
1. Care must be taken when connecting the device, as it may be destroyed if incorrectly connected.
All details of the connection specifications must be fulfilled.
2. For safety reasons, the PE(N) must be connected to terminal 5 on the X403.
3. The shielding of the analogue wiring must only be connected the earth screws beside the terminal
strip X401 on the KEA cover and may have no connection to any other metal parts.
4. The transformer connections kare to be connected to the protective conductor.
4.4. Battery and Supply voltage
1. Before the battery is disconnected, the charging device must be switched off.
2. The negative pole of the battery must be grounded at the input terminal of the switchboard. The
minimum conductor diameter is 10 mm2.
3. The supply voltage is to be set to 12 or 24 V DC with a switch on the RZ 071-D.
4. When the supply voltage of the control unit has been switched off, you must wait at least 20 sec-
onds before applying it again.
5. The leakage current of the noise filters is 22 mA in case of a 2-phase voltage lost.
4.5. Inductors
All coils must be fitted with reverse diodes to prevent high voltage peaks. All other coils or inductive loads
must also be fitted with suppressor elements. The same applies for all relays and inductors that are used in
the switchboard or controlled externally.
5. Connection
1. Only trained experts may make the connections of the KEA.
2. For safety reasons, the PE(N) must be connected to terminal 5 on the X403.
3. Before the battery is disconnected. The charging device must be switched off.
4. When the supply voltage of the control unit has been switched off, you must wait at least 20 sec-
onds before applying it again.
5. The negative pole of the battery must be grounded at the input terminal of the switchboard. The
minimum conductor diameter is 10 mm2.
6. The supply voltage is to be set to 12 or 24 V DC with a switch on the RZ 071-D.
7. The shielding of the analogue wiring must only be connected the earth screws beside the terminal
strip X401 on the KEA cover and may have no connection to any other metal parts.
8. All coils must be fitted with reverse diodes to prevent high voltage peaks. All other coils or induc-
tive loads must also be fitted with suppressor elements. The same applies for all relays and induc-
tors that are used in the switchboard or controlled externally.

6 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 6 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
The following signals (if needed) are directly applied to the control unit:
Voltage of mains and generator
Current of generator
Four analogue sensors
Pick-up
Two analogue output signals
Optical fibre or USB for parameterisation
Two CAN bus systems.
Although the control system is protected against reverse polarity, the correct polarity when connect-
ing the battery voltage must be strictly observed, as reverse diodes or other electronic parts of the
switchboard may possibly be damaged.
The fuse on the RZ 071-D will be blown if the control system is connected with the wrong polarity!
Due to the fact that most of the control relays may be configured for various functions, only the
status print out of the supplied control unit is to be considered as a binding document. It must be
observed, that in case of a possible replacement of a unit, any modifications made after commis-
sioning cannot be taken into account by the manufacturer.
5.1. Operating the Display
Values or parameters are selected, as you would read a book. The groups listed further down are
arranged as 'pages'. You can scroll forwards and backwards through these groups by pressing the
[→] and [←] keys. The entries of each group can be read from top to bottom like lines of a text.
Select a line by pressing the keys [↓] (down) and [↑] (up). The selection starts again with the other
end of the 'page', when the top or bottom of the 'page' is reached.
To select directly the ACTUAL VALUES group: hold down the LED TEST button, and press [←].
To display the group CURRENT ALARMS hold down LED TEST and press [→].
To modify a parameter: first enter the relevant IDENT-NUMBER.
Note: Parameters of group 0, -GENERAL PARAMETERS-, can be modified without entering this number.
Parameters are modified as follows:
1. Select the required parameter group with the [←] and [→] buttons.
2. Select the required parameter line with the [↓] and [↑] buttons.
3. Press OFF and LED TEST (function: PARA ON or PARA OFF) together. This opens parameterisation
mode as can be seen by the specific cursor [ █]. The selection of the group cannot be changed
now.
4. Press [↓] / [↑] to select the desired parameter.
5. Press OFF and ALARM OFF (ENTER function) together to select the parameter line. The shape of
the cursor confirms the selection, as it underscores (e.g. 196) now the part of the parameter that is
to be modified. The chosen parameter cannot be deselected now.
6. Select the figure or letter of the parameter that you want to modify with the [←] and [→] cursor
keys. Numerical parameters can be increased or decreased by increments of 1 with the [↑] and [↓]
buttons. Press the same buttons to negate parameters that are displayed with a letter (+/- signs,
alarm coding etc.).
7. Press OFF and ALARM OFF together to store the displayed parameter.
Press OFF and LED TEST to abort parameterisation.
5.2. Setting the Display Contrast
Hold down LED TEST and press key [↑]to increase the display contrast (makes the display darker)
Hold down LED TEST and key [↓] to lower it (makes the display lighter).

7 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 7 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
6. PIN Number, Ident-Number
To modify a parameter, you first have to enter the relevant IDENT-NUMBER. This number is compared
with the PIN NUMBER,and if they are identical, the user is authorised to parameterise the device. The
user can chose any PIN NUMBER between 00000 and 50000. The PIN NUMBER and IDENT-NUMBER are
factory-set to 00000.
A special IDENT-NUMBER can be enquired from the factory if you forget your PIN NUMBER, so that a
new PIN NUMBER can be entered. Modify the PIN NUMBER as follows:
1.Enter the currently valid Ident-Number. The pin number is now also shown.
2.Enter a new PIN Number.
The Ident-number previously entered is now no longer valid.
The IDENT-NUMBER is deleted 15 minutes after the last input, if the user has not previously set it to an
invalid value.
The automatic deletion of the IDENT-NUMBER is, however, not carried out while 00000 is set as
the PIN.
7. Parameterisation Menu Structure
Group 0
Group 1
Group 2
Group 3
Group 4
KEA 201 SPL
KUHSE GmbH
ACTUAL VALUES
ENCODING OF
ALARMS
MAINS VOLTAGE
MONITOR
GENERATOR
MONITOR
COUNTERS
PROTECT: PARALLEL
OPERATION
GENERATOR
CURRENT MONITOR
MONITOR
Group 5
Group 6
Group 7
Group 8
Group 9
ANALOGUE
INPUTS
SPEED MONITORING
SPEED GOVERNOR
START-STOP
ADD. FUNCTIONS
CHANGE OVER OF
MAINS-GENERATOR
RELAY- /LED
FUNCTIONS
ANALOGUE
OUTPUTS
BATTERY VOLTAGE
MONITOR
ADDITIONAL
PARAMETERS
Group 10
Group 11
Group 12 *)
Group 13
Group 14*)
LOAD CONTROLLER
PF CONTROLLER
SYN. FUNCTION
f/U CONTROL
ENGINE CONTROL
ACTUAL VALUES
NO ALARMS
PRESENT
ENG. CONTROLLER
CURRENT ALARMS
PF CONTROLLER
FREQUENCY CONTR.
VOLTAGE CONTROL
MAINS REFERENCE
LOAD
*) Group 12 and 14 only displayed if there is a CAN connection to the genset.
The functions and parameterisation are described in FUNCTIONS AND PARAMETERISATION OF KEA
101-112 –please refer to our Website under http://www.kuhse.de/en/download/operating-
instructions/diesel-genset-controls.html.
This document contains all possible functions featured in the KEA Series 101-112 and is also valid for
the new KEA series 201-252. Please note however, that only those functions, listed in the service
manual, are actually implemented. The PARAWIN parameterisation software also shows only the
parameters that are possible for the particular control unit.
Additional processes for the
peak load operation according to VDE-AR-N 4105
mains failure detection according to E VDE-AR-N 4120 (as of Version 9)
sprinkler operation according to VdS 2100-22:2008-11
are described further below.

8 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 8 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
Group
Function
Section in FUNCTIONS AND PARAMETERISATION
2
Encoding of alarms
Alarm Monitoring
3
Mains voltage monitor
Voltage Monitor
3
Mains failure protection
Mains failure monitoring in parallel operation
4
Generator voltage monitor
Voltage monitor
4
Generator current monitor
Current monitor
5
Analogue inputs
Analogue interface
5
Analogue outputs
Analogue interface
6
Speed monitoring, Switching points
Speed monitoring
7
Start-stop functions
Start and Stop
7
Additional parameters
Additional parameters
7
Battery voltage monitor
Additional parameters
8
Parameter for mains-generator switchover
Mains-Generator switchover
9
Settings for relays and indicators
Setting of relays
10
Power controller
Power und PF controller
10
PF controller
Power und PF controller
10
Reference load controller
See further below
11
Synchronizer
Synchronisation
11
Frequency controlling in stand-alone operation
Synchronisation
11
Voltage controlling in stand-alone operation
Synchronisation
User manual
See BA_KEA 201_SPL
8. Alarm Monitoring
8.1. Description
The control unit can control up to 64 alarms. The texts and trigger inputs for alarms 1 to 19 and 49 to
64 are variable, i.e. their texts and actuation are determined by the parameterisation software
PARAWIN. The alarms are actuated by terminals 1 to 14 or free terminals on the relay unit RZ 071-D or
by internal flags (e.g. controller failures, limit value on an analogue channel too high, etc.). The
parameterisation is described above.
Alarms can be divided into three groups:
Alarms that are monitored only after a delay when the engine is running (e.g. LOW LUB OIL
PRESSURE), called DELAYED. The green MONITORING ON indicator shows that they are monitored.
Alarms, which are monitored even when the engine is at a standstill, except in operation mode
OFF,(e.g. BATTERY UNDERVOLTAGE), called UNDELAYED.
Alarm signals 13 and 14 are always monitored, even in operation mode OFF.They are used for
alarms such as LEAKAGE. In operation mode OFF the audible signal is not switched on, but the
alarms are collected together in common alarms. They act just like normal alarms when any other
operation mode than OFF is selected.
The alarms are configured as follows:
Alarm is active or inactive
Contact is normally open or normally closed
Delayed or undelayed monitoring
Warning or shutdown
In addition for warning alarms: With or without generator cut off and stop after the re-cooling period
in AUTO mode.
The genset is stopped after the re-cooling period and the automatic control is locked if the
generator is cut off after a warning alarm in the AUTO mode.

9 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 9 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
At terminal inputs, an alarm is triggered when the corresponding signalling switch closes (normally
open, make contact) or opens (normally closed, break contact). In case of analogue signals an alarm
is triggered, when the actual value is higher than the UPPER LIMIT (alarm pre-set for make contacts) or
the actual value is lower than the LOWER LIMIT (alarm pre-set for break contacts). Alarms 11 to 14 can
additionally be parameterised as break signals of output relays, i.e., the corresponding relay is
activated when the alarm is inactive.
8.2. Alarm Announcing and Acknowledgement
As long as no new alarm is waiting for acknowledgement, the ACTUAL ALARMS group can be selected
with the [←] and [→] buttons, or by pressing LED TEST and the [→] button at the same time.
The indicator COMMON ALARM (yellow one in the left row of the panel) is flashing when an unacknowl-
edged alarm is present. The acoustic signal is switched on at the same time. Press the ALARM OFF
button to turn off the acoustic signal and bring up the page of the ACTUAL ALARMS on the display.
The alarm text is preceded either by <NEW> if the alarm has not been acknowledged or <ACKN> if it
has been acknowledged.
Unacknowledged alarm Acknowledged alarm Display when no alarms
are activated
Press the ALARM OFF button to acknowledge the indicated alarm or to delete a previously acknowl-
edged alarm if the cause of the malfunction has been removed.
When all alarms have been acknowledged, the COMMON ALARM indicator stops flashing and lights
up steadily. It starts to flash again when a new alarm is notified.
The COMMON ALARM switches off when all alarms have been deleted. Move through the activated
alarms with the [↑] and [↓] buttons to acknowledge or delete them with the ALARM OFF button.
If no alarms are pending, the announcement -NO ALARMS PRESENT is displayed.
If the generator is switched off by a warning alarm whilst in AUTO mode, the motor is stopped
after the re-cooling time, and the automatic mode is locked.
8.3. Explanation of Alarms
8.3.1. Engine keeps running
This alarm is announced when the engine is still running after the stop procedure. It means that the
stopping equipment of the engine (stopping solenoid, gas valve, etc.) is defective.
8.3.2. Engine fails to start
This alarm comes up (and the automatic operation is locked) when the engine is not running after the
start sequence.
8.3.3. Engine fault
This alarm is activated if the engine stops without having a stop command from the control unit. The
control system is locked at the same time.
8.3.4. Overspeed
The generator frequency or a pick-up signal is used for monitoring overspeed. The alarm GENERATOR
UNDERVOLTAGE must be enabled as a shutdown alarm when the generator frequency is used. This
also protects the engine if the generator voltage fails.
8.3.5. Alarms 13 and 14
The input signals for these two alarms can be delayed for 0 to 240 seconds. That means that the
alarm contact must be activated for the programmed time before the alarm comes up. Furthermore
these two alarms are also enabled in the operation mode OFF, however without the audible signal.
Fault signals, which have to be always signalled, can be monitored by this (e.g. tank filling level,
leakage).
NEW GENERATOR
OVERLOAD
ACKN GENERATOR
OVERLOAD
NO ALARMS
PRESENT

10 / 26 Service Manual for KEA 201 SPL –File: SA_KEA 201 SPL_EN_Ver 2016-07-01.doc 10 / 26
_________________________________________________________________________________
Alfred Kuhse GmbH
Phone: [phone]
[email protected]e
Changes without further notice reserved.
An der Kleinbahn 39, D-21423
Winsen (lu(
Fax [phone]
www.kuhse.de
8.3.6. Battery voltage Monitor
A relay (with a break function) can be programmed for the direct output of the battery voltage monitor.
It is energised if the voltage is good. A remote signal is possible by this even in the operation mode
OFF.
8.3.7. Analogue Input Alarms
The analogue inputs can be fitted with modules for various sensors (PT100, PT1000, current loops,
thermal elements, VDO sensors, MotoMeter for engine temperature and oil pressure etc.). For each
analogue input, two threshold levels can be set to trigger an alarm.
8.3.8. Mains CB tripped
The mains circuit breaker can be monitored for automatic tripping (e.g. by an installed over-current
tripping device). The alarm is internally triggered if no feedback signal MAINS CB IS ON is detected after
running out of the mains CB closing pulse.
Furthermore it can be selected whether the engine should start and take the load or not (according to
VDE standard 0107) in the operation modes AUTO or TEST. The alarm must in this case be cancelled
for switching back to mains supply after the switch-back delay.
8.3.9. Mains CB does not cut off
The alarm occurs when the mains CB is not off two seconds later after the Off-command. This alarm
can control a relay by which an additional mains coupling breaker can be switched off to allow the
generator to supply the consumers.
8.3.10. Generator CB tripped
The generator circuit breaker can be monitored for automatic tripping (e.g. by an installed over-current
tripping device). Additionally the mode WARNING/SHUTDOWN must be programmed for this alarm. The
alarm is internally triggered in case no feedback signal GENERATOR CB IS ON is detected after running
out of the generator closing pulse.
8.3.11. Generator CB does not cut off
The alarm occurs when the generator CB is not off two seconds later after the Off-command. The
genset gets an internal start command and by this keeps the engine running and the generator CB
remains on.
The engine stops when in this case a shutdown alarm occurs. An additional generator coupling
breaker can be switched off by a programmed relay to prevent that the engine is operated with reverse
power.
8.3.12. Alarms of the voltage monitors
An alarm is announced if a monitored voltage or frequency of mains or generator is out of its range.
The alarm itself has no influence of the actual voltage or frequency monitoring. That means, if the
monitor has stated a failure and triggered the alarm and later on the monitored function is again within
its limit, the alarm is still present until it is cancelled. For the internal controlling however, the actual
state is used which means, that the monitored function is effective as NORMAL.
8.3.13. Monitoring of the currents
The generator currents can be monitored for
overcurrent (e.g. 110 %)
short-circuit (e.g. 300 %)
unbalanced currents and
thermal overload.
The Response Diagram for Thermal Overload, is shown further below.
8.3.14. Synchronisation failure
A timer is started when the synchronisation begins. An alarm is triggered if no synchronisation has
happened when this delay time is up. It is programmable if in this case a changeover with a break is
done or if the synchronisation remains on.
8.3.15. Load controller failure
An alarm is indicated when after a pre-set time the actual load has not matched the pre-set load value
(the actual load has to be at least once inside the dead zone). The genset can be stopped or a peak
load command can be removed in this case.