Operating Instruction KEA 293 PST -
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- File:
BA_KEA 293 PST_EN_Ver 2016-07-01.doc
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Alfred Kuhse GmbH
Telefon: +49(0)4171-798-0
E-mail: [email protected]
Subject to technical changes
An der Kleinbahn 39,21423 Winsen
Telefax; +49(0)4171-798-117
http://www.kuhse.de
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.
Overspeed
For the overspeed monitoring, either the generator frequency or the frequency of a pick-up is used (according to the pa-
rameterisation).
9.4.2.
Speed measurement failed
This message is always effective. If all parameterised criteria for the R
UNNING
message are withdrawn during
operation, the monitoring is switched off. For this reason, the genset is shut down and the automatic system
is locked and the
FAILED START
/
MOTOR ERROR
message is displayed.
9.4.3.
Engine does not switch off
This message is always effective. If the motor still runs after the stop process has expired (parameterised
though the switch-on duration of the stop solenoid), the stop process is repeated and the
FAILED START
/
MOTOR ERROR
message is displayed. The automatic system is not locked, so that the genset is immediately
ready for operation in the event of a start request (sprinkler request).
10.
Remote acknowledgement
Existing alarms can be remotely acknowledged with a signal (L-) on terminal 32. A constant signal provides
the command to unlock only once. The automatic system is also unlocked if all of the deactivating fault mes-
sages can be cleared.
The parameterisation defines which alarms are to be cleared. If the alarm contact is still active, remote
acknowledgement of the message is not possible. If the automatic system has been inhibited by the Q
UICK
S
TOP
input, it cannot be unlocked by the remote acknowledgement, but only locally by changing the operat-
ing mode to O
FF
.
11.
Speed regulation
The automatic system provides adjusting pulses for the speed controller (if the function is enabled) when in
A
UTO
and T
EST
operating modes, if the speed is not within the parameterised window. A pause is made be-
tween two pulses so that the motor has time to execute the command
12.
Emergency Stop / Emergency Off (external)
A pulse on the Q
UICK
S
TOP
(E
MERGENCY
S
TOP
) input is sufficient to trigger the Emergency Stop function.
Thus, independent of the operating mode:
the genset is shut down
the automatic system is locked for further start processes (display:
AUTOMATIC SYSTEM LOCKED
).
In order to unlock, the system must be changed to O
FF
operating mode. If the Q
UICK
S
TOP
signal is still pend-
ing, it cannot be unlocked. The A
UTOMATIC SYSTEM LOCKED
display remains switched on.
