Lenze TCF Series User Manual

Page 31

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Follow the procedure below to check the motor rotation . This procedure assumes that the
drive has been powered up for the first time, and that none of the parameters have been
changed .

1 . Use the t button to decrease the speed setpoint to 00 .0 Hz . If the t button is

held down, the speed setpoint will decrease by tenths of Hz until the next whole
Hz is reached, and then it will decrease by one Hz increments . Otherwise, each
push of the t button will decrease the speed setpoint by a tenth of a Hz .
Once 00 .0 Hz is reached, the display will toggle between “00 .0” and “- - -”, which
indicates that the drive is in a STOP condition with a speed setpoint of 00 .0 Hz .

2 . Give the drive a START command . This can be done using one of several wiring

methods described in Section 11 - TCF CONTROL WIRING DIAGRAMS . Once
the START command is issued, the display will read “00 .0”, indicating that the
drive is in a RUN condition with a speed setpoint of 00 .0 Hz .

3 . Use the s button to increase the speed setpoint until the motor starts to rotate . If

the s button is held down, the speed setpoint will increase by tenths of Hz until
the next whole Hz is reached, and then it will increase by one Hz increments .
Otherwise, each push of the button will increase the speed setpoint by a tenth of
a Hz .

4 . If the motor is rotating in the wrong direction, give the drive a STOP command and

remove power from the drive . Wait three minutes for the bus capacitors to discharge,
and swap any two of the motor wires connected to T1, T2, and T3 .

NOTE
The drive is phase insensitive with respect to incoming line voltage . This
means that the drive will operate with any phase sequence of the incoming
three phase voltage . Therefore, to change the motor rotation, the phases
must be swapped at the drive output terminals or at the motor .

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