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EMC-compatible installation of EXTERNAL control lines
The control cable may not be longer than 30 meter.
Screened control cables must be used when the cable
length is longer than 20 meter. When using a shielded
cable connect the shielding to one side only, i.e. only to
the device with the protective ground (keep cable short
and with as little inductance as possible!)
Pay attention to suffi cient distance from power lines
and motor wires to pre-vent interferences. Attention!
Ensure correct polarity! Never apply line voltage to
analog inputs!
The EC motor has electronically thermal-/over voltage
protection.
MODBUS
(For more information about Modbus, visit www.ostberg.com).
Modbus is only available on fan type RKB 1000x500 F3 EC:
•
Baud rate
: 19200
•
Bits:
8
•
Parity:
None
•
Stop bits:
1
•
Handshake:
None
OPERATION
Before starting, make sure that:
• the current does not exceed more than +5% of what
is stated on the label.
• the supplied voltage is 6% to –10% of the
rated voltage.
• no noise appears when starting the fan.
• the rotation direction at 3-phase motors are
according to the label.
MAINTENANCE
• The fan must be cleaned regularly, at least once per
year to maintain the capacity and to avoid unbalance
which may cause unnecessary damage to the
bearings.
• The fan bearings are maintenance-free and should
be replaced only when necessary.
• Make sure that there is no noise from the fan.
Consider the weight of the fan when removing or opening larger fans to avoid injury and damage.
Before service, maintenance or repair, disconnect power and wait until the impeller has stopped.
KG
VARNING!
ATTENTION!
ACHTUNG!
Tung
motorlucka.
Heavy
motor lid.
Schwerer
Motordeckel.
1270110
Utg.
2
7
1270468_1
View A
View A
View B
View B
View C
Cleaning
When cleaning the fan, high-pressure cleaning or
strong dissolvent must not be used.
Cleaning should be done without displacing or
damaging the impeller.
Access to the fan wheels
RKB 300x150-RKB 1000x500 (rectangular).
1. Loosen the Allen bolts on the hatch (1), different
numbers of bolts depending on model M5x10.
View A.
2. Loosen the latch at the motor brackets edge (2).
Applies to the models: RKB 700x400, RKB 800x500
and RKB 1000x500. View A and B
3. Tilt up/down the motor bracket to access the
impeller. For the models: 700x400, 800x500 and
1000x500 there is also a safety arm (3), make sure it
is secured. View C.
LÖSNINGSMEDEL
1
1
1
1
DISSOLVENT
RKB 300x150-RKB 600x350 EC (picture showing RKB 500x250)
RKB 700x400 and RKB 800x500 EC (picture showing RKB 700x400)
2
2
3
3
