VLT ® 2900 Series Set the motor speed by adjusting the Local refer- ence Local/remote operation = Local [1] Par. 002 6. Check that the mains supply has been dis- connected before removing the motor and mains plugs. Local reference Parameter 003 Warning against unintended start The motor can be brought to a stop by means of digital commands, bus com- mands, references or local stop, while the frequency converter is connected to mains. If personal safety considerations make it necessary to ensure that no unin- tended start occurs, these stops are not sufficient. While parameters are being programmed, the motor may start.
Consequently, the stop key [STOP/RESET] must always be activated, following which data can be modified. A motor that has been stopped may start if faults occur in the electronics of the fre- quency converter, or if a temporary over- load, a fault in the supply mains or a fault in the motor connection ceases. Motor start Press [Start] to start the motor. Set the motor speed by adjusting parameter 003 Local reference. Check whether the direction of rotation of the motor shaft is clockwise. If not, exchange any two phases on the motor cable. Press [STOP/RESET] to stop the mo- tor. Press [QUICK MENU] to return to display mode.
(QUICK MENU] + [+] keys must be pressed simulta- neously to give access to all parameters. Safety regulations The voltage of the frequency converter can be fatal whenever it is connected to mains. Incorrect installation of the motor or the frequency converter may lead to damage to the equipment, serious per- sonal injury or death. NB! Indicates something to be noted by the reader. Consequently, the provisions of this Quick Setup, as well as national and local rules and safety regulations, must be complied with. Touching the electrical parts may be fatal, even after the equipment has been disconnected from mains: wait at least 4 min. Indicates a general warning. 1.
The mains supply to the frequency converter must be disconnected if repair work is to be carried out. Indicates a high-voltage warning. 2. The [STOP/RESET] key on the control panel of the frequency converter does not discon- nect the mains supply and is thus not to be used as a safety switch. 3. Correct protective earthing of the unit must be established, the user must be protected against supply voltage, and the motor must be protected against overload in accordance with applicable national and local regulations. 4. The earth leakage current is higher than 3.5 mA. 5. Protection against motor overload is not in- cluded in the factory setting.
If this function is required, set parameter 128 Motor thermal protection to data value ETR Trip or ETR Warning. 4 MG.29.A3.02 - VLT ® is a registered Danfoss trademark