IMO DVG30 03 2017 Am 10 05 2017

Maintenance/troubleshooting
DVG 30.03.2017 13
NOTE
At single speed motors with nominal power from incl. 5,5 kW (D400V) we recommend “star – delta” start-
ing. For this purpose all 7 wires are led to connection box/service switch.
NOTE (DVG-EC ONLY)
 0-10V speed control input.
 Modbus controllable.
 Fire mode to disable motor protection and controller protection in case of fire.
9.3 Operation/use
Only use the fan in accordance with this operating instruction and the operating instructions of motor.
Control the fan during operation for correct function.
Switch the fan off as planned.
WARNING
Hazard from electrical voltage and flying parts!
Errors occurring can lead to personal and/or property damage!
Switch the fan immediately off as planned:
 In cases of a non-typical noise from bearings, vibrations, pressure pulsation.
 In case of overcurrent, overvoltage or temperature (nameplate). Then try to find the reason - see
chapter 10.
10 Maintenance/troubleshooting
WARNING
Hazard from electrical voltage!
 Trouble setting and service only by a trained electrician or trained and instructed qualified personnel!
 Observe rules for safe work at maintenance/troubleshooting, cleaning and service!
 Observe 5 safety rules for the electrical expert!
- disconnect from the power supply (all-pole),
- prevent switching on again,
- test absence of voltage,
- earthing and short-circuiting,
- protect adjacent live parts by covers and barriers and fit a suitable warning notice.
DANGER
Hazard from injurie from rotating parts, if not covered with protective grid!
The outlet protective grid is serially provided. If needed to remove protective grids temporarily, assure:
 Electrical circuit must be interrupted and secured against restarting.
 Impeller must stand still.
 Immediately after finished work fix protective grids.