salmson EC-Drain LS2 Installation And Operating Instructions Manual page 14

ENGLISH
To optimise the runtimes, the pumps are changed each time
the base-load pump is switched off.
In automatic mode, all pump safety functions, such as the
electronic motor protection and monitoring of the thermal
winding, are active. If a pump fault occurs, the system auto-
matically switches over to a functional pump, optical and
acoustic signals are output and the collective fault signal con-
tact (SSM) is active.
Once the high water level is reached, optical and acoustic
alarm signals 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 system
safety.
Buzzer off/Reset (item 4)
off
An acoustic signal is output 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 error and to enable the control
again, the button must be pressed for at least half a
second. It is only possible to acknowledge when the
error and its cause have been remedied.
Fault memory
The control contains an error memory.
By pressing both buttons "stop" + "auto" at the
same time, the last stored error is displayed by
the corresponding LEDs (see Chapter 10 "Faults,
causes and remedies").
P1
By pressing both buttons "Manual 1" + "stop", at
the same time, the error memory is cleared.
6.2.2 Display elements of the switchgear (Fig. 1)
Ready for operation (item 15)
Green LED
• Is permanently lit if the switchgear is switched on and
the control voltage is applied
Automatic mode (item 5, item 9)
Green LED
• Flashes when the control voltage is applied but auto-
matic mode is deactivated.
• Is illuminated when automatic mode is activated.
• Does not light up if the pump is deactivated via the
DIP switch. (see Section 6.2.4)
Operation (item 6, item 10)
Green LED
• Is illuminated in green when the pump is switched on
(switch-on level reached).
• Flashes green when the pump is switched on via set
follow-up time.
High water (item 14)
Red LED
• Is illuminated in red when the high water alarm was
triggered.
Overload fault (item 7, item 11)
Red LED
• Is illuminated in red when the electronic excess cur-
rent release was triggered. This setting is made via
the DIP switch (see Section 6.2.3).
• Flashes red when the control is operated without a
load.
Winding fault (item 8, item 12)
Red LED
• Is illuminated in red when the thermal winding con-
tact (WSK) was triggered.
Service (item 13)
LED yellow
• Is illuminated in yellow when the service interval set
via the DIP switch (Fig. 2, item 3) (see Section 6.2.4)
has elapsed.
In order to increase operating safety, it is recom-
mended to carry out maintenance.
Meter reset is to be carried out by skilled personnel.
System parameters exceeded (item 13)
LED yellow
• Flashes in yellow when one of the following system
parameters has been exceeded:
– Pump switching operations per hour
– Pump switching operations per day
– Pump running time per hour
Corresponding values are permanently programmed
and cannot be changed.
If a signal is output it is recommended to check the
system or operating conditions.
Meter reset is to be carried out by qualified personnel.
Phase sequence incorrect (only for three-phase version)
If the phase sequence is incorrect, all LEDs flash in sequence in
an anti-clockwise direction (running lights). An acoustic alarm
signal is output and the collective fault signal contact (SSM) is
active.
6.2.3 Upper DIP switch (Fig. 2, item 1) above the potentiometer
DANGER! Risk of fatal injury!
When working on the open switchgear, there is a dan-
ger of electric shock from touching the live compo-
nents.
The work may only be carried out by skilled personnel.
To change the DIP switch settings, switch the device so
it is voltage-free and secure it against being switched
on again without authorisation.
Internal electronic motor protection (DIP 1-5)
To protect against motor overload, the excess current release
must be set according to the nominal pump current via the DIP
switches 1 to 5 (1.5-12 A).
It is deactivated:
•when the set nominal pump current is exceeded.
14
The electronic excess current
release is set via the upper DIP
switch, and special functions can
be activated, such as the pump
test run and buzzer.