TA112MX3-E - 6 / 18 - 07-01-25
F
OUR CUSTOMER DESIGNED INDICATORS
The function of the four indicators of the right row can be set as required. You can use them to announce
selected important alarms (in addition to the display) or for system messages. You can also use digital inputs
(e.g. terminals 27 and 28) of the relay unit RZ 071-D if they are function free.
M
IMIC
D
IAGRAM
/ V
OLTAGE
M
ONITOR
Four red and two green indicators are provided for the generator voltage monitoring. They show if the
voltage is within the nominal range or if and which deviations are present.
These indicators, located under the generator symbol signalise:
f <
f >
U <
U >
Underfrequency
Overfrequency
Undervoltage,
Overvoltage
Phase sequence
The two green indicators show, that all monitored functions of voltage, frequency and phase sequence are
within their limits. The red ones show only failures if the associated function is enabled. All functions of the
voltage monitor and all limits can be parameterised. The undervoltage failure is also shown if the phase
sequence is disturbed or left turning.
The associated indicator starts flashing if an enabled function is out of its limits. Both green indicators
remain on until the response delay of this function is up. The red indicator lights then steadily and the
controller states now the voltage as
DISTURBED
.
The red indicator distinguishes as soon as the function is back again within its limits and the release delay is
started. Both green indicators are flashing during this delay time. They change to a steady light and the
voltage is stated as normal when the release delay time is up.
The indicators for the generator voltage are switched off in the operation mode O
FF
or if in A
UTOMATIC
mode a start command is absent.
O
PERATION
M
ODE
B
UTTONS
Press the O
FF
, M
ANUAL
, A
UTO
or T
EST
buttons to activate the corresponding operation mode. The selection
may be locked by a key-operated switch (using an input on the relay unit).
The speed can be set manually in the operation modes M
ANUAL
and T
EST
. To do this, select the
SPEED
value
in A
CTUAL VALUES
and hold the M
ANUAL
or
T
EST
button down. Press in addition the buttons [
↑
] and [
↓
] to
increase or decrease the speed signal sent to the engine.
S
TART
B
UTTON
You can start the engine by pressing this button in the M
ANUAL
mode. When the start sequence is defined
for a gas engine, the start sequence will be executed correspondingly. This button has no effect if the engine
is running or in any other operation mode. If the engine has to be preheated, the preheating device must be
externally actuated.
LED T
EST
B
UTTON
Use this button to check that all LEDs of the control unit are functioning correctly. This button is also used
as a multi-function button for parameterisation and contrast setting.
A
LARM
O
FF BUTTON
Pressing this button silences the acoustic signal that sounds when a new alarm is triggered. Pressing the
button a second time deletes the selected alarm, if the event that triggered the alarm is over. Further functions
are described in the A
LARM
M
ONITORING
document.
Changes without further notice reserved.
