Maschinenbau
Werkzeuge
Laborgeräte
2
D-LE 255 S/D - 18.07.14 / Vers.: 1
7.
Interruption in electrical cir-
cuit of the motor
Fault on the phase-angle control (overcur-
rent or no zero crossings)
8.
Error communicating with
phase-angle control
9.
Error in
EEPROM
memory
10.
Error during initialisation
The
extraction
unit is switched off.
After correcting the
error, switch on and
reset the extraction
unit.
11.
The desired level air-
flow volume exceeds max.
air volume value of the
blower, for example, by con-
necting an additional chan-
nel.
1 1 m/ s
3 0
L / s
3 5 L / s
1
2
Example: Air volume for extraction channel
(1st workplace) is set to 35 l/s. After activating
the 2nd extraction channel (2nd workplace), air
volume demands stands at 70 l/s. This ex-
ceeds the fan power by 15 l/s In this case, the
extraction channel 2 is disabled immediately
and
shown in black
on the display after 10
seconds.
Beep sounds and
display
shows
this message:
In-
sufficient air vol-
ume for additional
channel.
The addi-
tional
extraction
channel is shown
black on the display
after 10 seconds.
The
extraction
channel and socket
A1 and A2 are im-
mediately
blocked
or de-energized.
-
No signal,
-
Continuous signal,
- Periodic Signal
(with LEDs and buzzer)
5 User menu
(See Fig.6 Page 9)
The user menu allows adjusting the operating parameters and areas of the extraction unit.
Note
The user menu is activated by pressing and holding the "MF" (46) button for 5 seconds.
The user menu is exited by pressing the "MF" (46) button.
User menu settings
Parameter name
Area/Range
Delivery value
1.
Air basis (l/s)
10 to 60 L/s in 5l increments
20 l/s
2.
Current threshold 1
0 to 255
215
3.
Current threshold 2
0 to 255
215
4.
Extraction channel 1 /
Enable or
disable
or X
5.
Extraction channel 2 /
Enable or
disable
or X
