Nederman Fan Control 561 Serie Manual Del Usuario página 14

2 For systems with a sensor; connect the sensor
EN
cable in the operation box.
3 Connect possible spotlight or switch for Nederman
extractor arms.
NOTE!
Check correct voltage connection: block J6. D3
= light emission diode for voltage connected.
4.3 Connection of several operation
boxes
See Figure 4.
Several operation boxes can be connected when a
central fan should be operated. See the wiring dia-
gram, Figure 3.
NOTE!
The fan contactor can be connected to any of
the operation boxes.
4.4 Delay time
The system with a sensor stops the fan automatically
after welding with a delay time of 1 minute. This time
can be adjusted with a potentiometer positioned in
the operation box. See
justed between 0 and 5 minutes, ± 25 %.
4.5 Setting the motor protector
See Figure 4.
Check the rated current on the fan motor identifica-
tion plate and set the motor protector (C), in the fan
contactor accordingly.
Lockable safety switches are recommended for the
whole electric system including the fan.
NOTE!
The switch (E) must be set in the "0"-position
before the power connection.
4.6 Resetting the motor protector
See Figure 5.
14
Fan Control Series 591
Figure 3. The time can be ad-
Break the power supply, remove the cover on the fan
contactor and push the button (R).
4.7 Trip class selection
See Figure 4.
The trip class selection knob (D), is set to 10.
5 Using Fan Control Series 591
See Figure 6. The system is designed to be used in a
dry environment in combination with other Nederman
products for extracting fumes, smoke or dust.
5.1 Automatic regulation of fan
Only automatic fan control with a sensor.
See Figure 2. Fit the sensor clamp (3) on the welding
cable (4). Check before welding begins that the sensor
clamp is in place.
The sensor stops the fan automatically after comple-
tion of welding with a delay time of approximately 1
minute (could be adjusted). The sensor responds to
welding currents from 8 to 400 A. The sensor has a
LED (F) which indicates when the sensor has received
a signal.
5.2 Manual regulation of fan
The fan can be started or stopped with switch (E) or
with the switch on the fume extractor hood.
WARNING! Risk of personal injury
• After the products have been installed, check
that there is enough suction capacity in the
ducting system before any work has begun.
Check the fan impeller rotation direction.
• The equipment must not be used in an ex-
plosive environment.
6 Maintenance
Installation, repair and maintenance work is to be car-
ried out by qualified personnel using only original Ne-
derman spare parts. Contact your nearest authorized
distributor or Nederman for advice on technical ser-
vice.