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- Operating instructions for KEA 252 PA
– File:
BA_KEA 291
NSTR_EN_Ver
2015-03-20_EN.doc
-
8 / 14
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Alfred Kuhse GmbH
Telephone: +49 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
9.
Error messages / Programmable operation indicators
Any of the 10 LEDs can either display an error message or be parameterised as an operation indi-
cators.
9.1.
Use as an operational indicator
These displays are independent of the selected operating mode. Thus, they can be used as displays of opera-
tional conditions via contact inputs as normal signal lamps. The parameterisation is described in the service
manual.
9.2.
Use as an error message
The arrival of an error message is displayed by the LED flashing. At the same time, the acoustic
signal (for the entered duration) is controlled. The acoustic signal is switched off with a pulse from
the A
LARM
O
FF
key (or automatically after the entered time). However, the LED continues to flash. If
the value 0 sec. is entered for the duration of the horn switch-on, no automatic switch-off is carried
out: The horn remains switched on until manually deleted.
Due to a second button actuation of A
LARM
O
FF
, the message switches from flashing to continuously
illuminated. Due to the necessary second acknowledgement, e.g. the switching off of the acoustic
signal generator after an automatic switch-off, it can be distinguished which error message has new-
ly occurred.
The display is cleared after the error is eliminated after renewed actuation of the A
LARM
O
FF
key.
With messages that lead to the switching-off of the genset, further operation is inhibited and this is
indicated by
AUTOMATIC SYSTEM LOCKED
. In order to unlock, the O
FF
operating mode (any actuated
external Emergency OFF buttons must also be unlocked) must be
selected.
If the generator is switched off due to a warning alarm in automatic operation, the engine is stopped after the
idle time and the automatic system is locked.
The parameterisation is described in the service instructions.
9.3.
Alarms 9 and 10
Both these alarms can be delayed from 0 to 240 sec. by the signal transmission, i.e. for the alarm
contact to issue an error, the signal must be pending for a parameterised time. Furthermore, both
these alarms are also effective in the Off operating mode (Off), but without switching on the horn.
Thus, criteria (e.g. tank overfilling, leakage warning) that always have to be reported can be moni-
tored.
9.4.
Internal error messages
All possible error messages monitored by the software are described in the following. They can be released or
locked. The parameterisation (release) is described in the service instructions.
9.4.1.
Error messages of the voltage monitor
The criteria of the voltage monitor, recognised as faulty, released for monitoring (<U, >U, <f, >f) , can be dis-
played. They can, individually or collectively, control an error message or only be displayed.
9.4.2.
Mains circuit breaker tripping
The alarm is internally activated if Mains is On feedback is not active after the mains switch -on
pulse has expired. After a mains circuit breaker trips, the M
AINS IS ON
LED flashes in brief pulses af-
ter a longer off period, the acoustic signal sounds and the collective alarm message is switched on.
The first actuation of A
LARM
O
FF
switches off the acoustic signal and a second press of A
LARM
O
FF
acknowledges the message.
Depending on the parameterisation, the genset starts in the A
UTOMATIC
position and takes over the
supply (VDE 107). In this case, the alarm must be cleared for switching back to mains operation. Af-
ter clearing, mains operation is resumed after the switching-back delay, if the mains voltage is in-
tact.
9.4.3.
Generator circuit breaker tripped
The alarm is internally controlled if no generator feedback occurs after the G
ENERATOR IS ON
switch-
on pulse has expired. After a generator circuit breaker trips, the G
ENERATOR IS ON
LED flashes in
brief pulses after a longer off period, the acoustic signal sounds and the collective alarm message is
switched on. The first actuation of A
LARM
O
FF
switches off the acoustic signal and a second press of
A
LARM
O
FF
acknowledges the message.
