Siemens SINAMICS G110D, Operating Instructions Manual

Page: 101 / 224

Functions
6.2 Inverter Control
SINAMICS G110D
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
101
6.2.6 Three-wire control, method 2
Function description
● The first control command is a permanent enable signal for starting the motor. When this
enable signal is canceled, the motor stops.
● The motor is started with the positive edge of the second control command.
● The third control command defines the direction of rotation.
Image 6-6 Three-wire control using digital inputs, method 2
Table 6- 11 Function table
Enable
signal
Motor
ON
Reverse
motor
Function when motor
is at a standstill
Function when motor is rotating
0 Not
relevant
Not
relevant
No effect OFF1: The motor decelerates to a standstill
1 0 →1 0 The motor accelerates
to the setpoint
No effect
1 0→1 1 The motor accelerates
to the inverted setpoint
No effect
1 0 1→0 No effect The motor reverses to the setpoint.
1 0 0→1 No effect The motor reverses to the inverted setpoint.
Table 6- 12 Parameterizing the function
Parameter Description
P0700 = 2 Controls the motor using the digital inputs of the inverter
P0727 = 3 Three-wire control, method 2
P0701 = 2 The enable signal to power-up the motor is issued with digital input 0
Further options: The enable signal can be issued with any other digital input, e.g.
with digital input 3 via P0704 = 2
P0702 = 1 The motor is started with digital input 1
Further options:The motor can be started with any other digital input, e.g. with digital
input 3 via P0704 = 1
P0703 = 12 The direction of the motor is reversed with digital input 2
Further options: The direction of the motor can be reversed with any other digital
input, e.g. with digital input 3 via P0704 = 12