Direction Of Rotation; Jog Feature; Speed Control - Siemens 6SE2101–1AA01 Operating Manual

CAUTION
Do not restart the inverter or reconnect it to a motor which is already running. Wait for the motor
to stop and the inverter to reach zero output frequency before attempting to run the
motor/inverter combination again.
The three run–down modes operate as follows:
Ramp–Down (P05 = 000, 004, 006 or 008)
The inverter output frequency will ramp–down at a rate set by parameter P03 until the minimum output
frequency (set by P07) is reached. At this point the inverter stops with no output.
Free Run (P05 = 002, 003, 005, 007 or 009)
The inverter output stops immediately, allowing the motor to 'freewheel' to a standstill or to be stopped by
other means.
DC Injection Brake
DC injection braking is selected by setting parameter P11 to a value greater than zero. The inverter injects
dc into the motor for a period equivalent to the ramp–down time set by P03 plus one second.

5.1.2 Direction of Rotation

The direction of motor rotation can be reversed by applying a voltage level of greater than +7 V to terminal 5 of the
control board. This can be achieved by connecting a short–circuit between terminals 2 and 5 on the control board
or applying an external control voltage of 7 – 33 V. If no connection is made, the output phase rotation will be
clockwise.

5.1.3 Jog Feature

The inverter may be run up to a predetermined frequency (set via parameter P12) by applying an external control
voltage of 7 – 33 V to terminal 13 on the control board, or by connecting a push–button between terminals 2 and 13
on the control board. The motor will only run while this voltage is applied, and the input is only active when the drive
is stopped.
The jog feature may be used for fine adjustment or 'inching' of equipment.

5.1.4 Speed Control

The motor speed is adjusted by the frequency set–point. This can be adjusted by analogue means (0 –10 V on
terminal X11.7 or 0 – 20 mA / 4 – 20 mA on terminal X11.9) or digitally by the push–buttons located behind the front
panel access clip. These push–buttons may be duplicated by connecting push–buttons to terminals X11.16,
X11.17 and X11.18 (see Figure 4) . A 10 V reference output is provided on terminal X11.6 so that an external
potentiometer can be used. Certain fixed frequency modes may also be selected (see section 5.3.2) .
5/3
English