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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 IRB 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
1270469_1
View A
View B
View C
View D
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
IRB 400x200-600x350 (rectangular) and IRB 200-350 (circular), picture showing IRB 200 EC.
1. Loosen the bolts on the hatch (1), 2 pcs Torx T25
M5x10. View A.
2. Open the hatch. View B
3. Loosen the two bolts on the motor bracket. View C.
LÖSNINGSMEDEL
1
1
Access to the fan wheels
IRB 700x400 EC – IRB 1000x500 (rectangular) and IRB 400-500 (circular), picture showing IRB 800x500.
1. Loosen the bolts on the hatch (1), 2 pcs Allen
M8x20. View E.
2. Loosen the latch at the hatch edge (2), View F.
3. Open the hatch. View G.
4. Loosen the four bolts on the motor bracket. View H.
5. Loosen the latch. View I.
6. Tilt the bracket for access to the fan wheel. View J.
4
3
DISSOLVENT
