ENGLISH
15
6.2 Function and operation
After connecting the switchgear to the supply voltage, as well
as after every mains interruption, the switchgear returns to the
operating mode set before the power interruption.
First, all LEDs are actuated for about 2 s for testing purposes.
Afterwards, the switchgear is ready for operation.
6.2.1 Switchgear operating elements (Fig. 1)
Main switch 4-pole
0
OFF
I
ON
Buttons:
Manual mode (item 1)
Stop (item 2)
Automatic mode (item 3)
To optimise the running times, the pumps are cycled each time
after the base-load pump is switched off.
In automatic mode, all pump safety functions, such as elec-
tronic motor protection and monitoring of the WSK, are active.
If a pump fault occurs, the system automatically switches over
to the functional pump, an optical and acoustic signal are
issued and the collective fault signal contact (SSM) is active.
Once the high water level is reached, an optical and acoustic
alarm signal are output and the collective fault signal contact
(SSM) and high water alarm contact are active. In addition,
there is a forced switch-on of the pumps to increase the system
safety.
Buzzer off/Reset (item 4)
Fault memory
The control contains an error memory.
The last fault that occurred remains in non-volatile storage and
can be called with the following shortcut.
6.2.2 Display elements of the switchgear (Fig. 1)
Ready for operation (item 15)
Automatic mode (item 5, item 9)
Operation (item 6, item 10)
High water (item 14)
Pump 1 or 2 is switched on by pressing the manual
mode button, regardless of the float switch signal,
along with all safety functions, such as electronic
motor protection and the winding protection moni-
toring of the WSK.
The green LED “Pump 1 operation” (item. 6) or “Pump
2 operation” (item 10) is on as long as the button is
pressed. This function is intended for commissioning or
testing purposes.
Manual mode only runs as long as the button is
pressed.
If the Stop button is pressed, automatic mode is
switched off for both pumps and the green LED (item
5, item 9) flashes.
The pump is not switched on automatically.
Once the high water level is reached, an optical and
acoustic alarm signals are issued and the collective
fault signal contact (SSM) and high water alarm con-
tact (alarm) are active.
If the automatic mode button is pressed, the auto-
matic mode of both pumps is switched on depend-
ing on the setting of DIP switches 6 and 7 (Fig. 2, item.
3) and the green LED (item 5, item 9) is permanently
on.
If a pump was deactivated with the DIP switches, the
corresponding LED remains off (see Section 6.2.4).
In automatic mode, the pumps are controlled
depending on the float switch signal. When the first
activation point is reached, the float switch contact is
closed and the base-load pump switched on. When
the second activation point is reached, the peak-
load pump is cut-in.
The green LED (item 6, item 10) is on while the pump is
in operation.
If the deactivation point of the base-load float switch
is reached, the contact opens, the peak-load pump
switches off and the follow-up time of the base-load
pump set on the potentiometer (Fig. 2, item 2) takes
effect.
The green LED (item 6, item 10) flashes until the set
time has elapsed. After the time has elapsed, the
base-load pump switches off.
P1
P2
An acoustic signal is issued by the built-in buzzer after
an error occurs. By briefly pressing the button, the
buzzer is deactivated and the collective fault signal
relay is acknowledged.
To acknowledge the fault and enable the control
again, the button must be pressed for at least half a
second. The fault can only be acknowledged once
the fault and its cause have been remedied.
By pressing both buttons (“stop” + “auto”) simul-
taneously, the last fault saved is displayed by
the corresponding LEDs (see Chapter 10
“Faults, causes and remedies”).
The error memory is erased by pressing both
buttons (“Manual 1” + “stop”) simultaneously
(approx. 1 sec.)
Green LED
• Goes on permanently lit if the power supply of the
switchgear is switched on and the control voltage
applied.
Green LED
• Flashes if the control voltage is applied but auto-
matic mode is deactivated.
• Goes on if automatic mode is activated.
•Does not go on if the pump is deactivated using a
DIP switch (see Section 6.2.4).
Green LED
• Goes on in green when the pump is switched on
(switch-on level reached)
• Flashes in green if the pump is switched on by means
of the set follow-up time
Red LED
• Goes on in red if high water alarm is triggered.
off
P1
