Operating instructions for KEA 291 NSTR -
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- File:
:
BA_KEA 291
NSTR_EN_Ver
2015-03-
20_EN.doc
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Alfred Kuhse GmbH
Telephone: +49(0)4171-798-0
E-mail: [email protected]
Subject to technical changes
An der Kleinbahn 39,21423 Winsen
Fax: +49(0)4171-798-117
http://www.kuhse.de
In addition to the remote start or start in the event of a mains failure, the genset can also be started
via the Sprinkler command (see further in this document).
8.4.
Mains circuit breaker tripping
The automatic system can be parameterised in such a way that the start and the switching to gen-
erator operation can also be carried out if the mains switch fails due to an error. (for systems per
VDE 107). In this case, the genset starts automatically and takes over as substitute power supply.
The internal mains switch monitoring must be parameterised to a fault message for the activation of
this function. The green M
AINS IS
O
N
LED flashes for the display of this error.
For switching back to the mains, the M
AINS CIRCUIT BREAKER TRIPPING
message must be cleared. In
the event of problem-free mains voltage, the automatic system switches back to mains operation af-
ter expiry of the switching-back time.
8.5.
Test operating mode
After button selection to the T
EST
position, the start program is triggered. The
START CONTROL
indica-
tion flashes as long as there is no start release and the
SWITCH ON AUXILIARY DRIVES
signal is pre-
sent. If no auxiliary drives are required (for start release), terminal 8 from X2,
START RELEASE
should
be switched with L-.
If the generator voltage lies within the parameterised value limits with its voltage and frequency val-
ues, the mains can be switched off and the generator can be switched on with the G
EN
-O
N
(
I
) or
M
AINS
O
FF
(
O
) button, or the generator can be switched off and the mains can be switched o n with
M
AINS
O
N
(
I
) or G
EN
-O
FF
(
O
) button.
If a mains failure occurs or the
MAINS BREAKER TRIPS
(if parameterised) during test operation, or if a
remote start command occurs, operation switches over to generator operation. Then, it is not possi-
ble to manually switch off the generator circuit breaker. Manual operation of the switch is only pos-
sible after mains power returns (possibly also clearing the M
AINS CIRCUIT BREAKER TRIPPING
alarm)
and after the switching-back time has elapsed.
In order to switch off the genset, the O
FF
or (if the remote start command is not present) A
UTOMATIC
operating mode must be selected.
8.6.
Sprinkler operation
The following functions are intended for the operation of an electrical sprinkler pump:
switching of all switching-off alarms (overspeed alarm remains switched off for electronic speed
sensor, demand VDS 2100-22) to warning,
optionally, the inhibition of the generator switch-off function for
GENERATOR OVERCURRENT
, for ex-
ample,
start program to 6 (parameterisable) start attempts,
upon sprinkler request being withdrawn: Cessation of the sprinkler operation after the
SPRINKLER
RUN
-
ON TIME
, or only manual switching off,
for the duration of the acceleration time of the sprinkler pump: Switching off the emergency pow-
er consumers or no interruption of the emergency power supply.
The supply of the sprinkler pumps is usually taken care of directly by the generator and thus prior to
the switch to the emergency power consumers. If a sprinkler request is arises, the genset starts. In
the event of the emergency power failure, the consumers can be switched off for a parameterisable
period of time in order for enough
energy to be available for the acceleration time of the pump. Furthermore, it is possible to parame-
terise that the consumer switches remain switched on or switched off in the event of an overload on
the side of the consumers.
Sprinkler operation is automatically cancelled after the sprinkler requirement is removed after a stip-
ulated run-on time or can only be ended manually (demand VDS 2100-22).
If the automatic system
is parameterised for manual shutdown, the LED of the O
FF
operating mode flashes as soon as the
sprinkler input is free. Stopping can then be carried out via the O
FF
operating mode (or always via
Emergency Stop).
