Figure 4-1 Siemens Standard Control Using On/Off1 And Rev - Siemens SINAMICS G110 Operating Instructions Manual

Using the SINAMICS G110
4.3.1 Siemens standard Control (P0727=0)
When P0727 = 0 there are two possibilities of control available using the following
signals
1. ON/OFF1 and REV.
2. ON/OFF1 and ON REV/OFF1.
4.3.1.1 ON/OFF1 and REV
Overview
This method allows the inverter to be started and stopped using the ON/OFF1
command and the direction of the inverter changed using the REV command.
These commands can be assigned to any of the digital inputs through parameters
P0701 to P0704.
The REV commands can be given at any time, independent of the frequency
output of the inverter.
Function
The following description refers to Figure 4-1.
On receiving an ON/OFF1 command the inverter will run the motor in a forward
direction and ramp-up the motor to the frequency setpoint.
When a REV command is issued, the inverter will ramp-down the frequency
through 0 Hz and run the motor in the reverse direction. When the REV command
is removed the inverter will ramp-up through 0 Hz and run in a forward direction
until the frequency setpoint is reach.
When the ON/OFF1 command is removed, the inverter will stop the motor by
performing an OFF1.
The REV command initiated by itself cannot start the motor.
Control
Commands
Inverter
Frequency
f out
Figure 4-1
56
ON/OFF1
REV
Equivalent Control Inputs
ON/OFF1
REV
Siemens standard control using ON/OFF1 and REV
ON/OFF1
REV
Active
Active
SINAMICS G110
04/2005
Active
o
Time
o = OFF1
Operating Instructions
6SL3298-0AA11-0BP0