Siemens SINAMICS S120 Function Manual page 419

CU310-2: Wiring input signals
The input signals for the pulse/direction interface are wired via connector X23 of the CU310-2:
Table 8-13
Pin
1 ... 11
12
13
14
15
Activating and parameterizing a function
The pulse/direction interface can be activated with p0405.5 = 1.
Make the settings for the pulse/direction interface (rotary, 24 V, terminal, no track monitoring,
no zero mark, etc.) in the parameter view of the Startdrive engineering tool.
Application: Speed-controlled drive
The drive is subject to speed control when operating on the controller. The clock frequency
stipulates the speed setpoint. The pulse number is entered in p0408. This is calculated from the
clock frequency of the controller and the preferred maximum motor speed. The following
formula applies:
Pulse number = (max. clock frequency · 60)/max. speed
Example: If the controller has a maximum clock frequency of 100 kHz and the motor being used
is to run at its maximum rated speed of 3000 rpm, the resulting pulse number will be 2000.
Overview of important parameters (see SINAMICS S120/S150 List Manual)
● p0010
● r0061
● p0400[0...n]
● p0404[0...n]
● p0405[0...n]
● p0408[0...n]
● r0722.0...21
● p0738
● p0739
● p2530
● p2550
Drive functions
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Wiring the CU310-2
Signal name
Not relevant
M
Direction of rotation
M
of pulses
Drive, commissioning parameter filter
CO: Actual speed value unsmoothed
Encoder type selection
Encoder configuration active
Square-wave signal encoder A/B track
Rotary encoder pulse No.
CO/BO: CU digital inputs, status
BI: CU signal source for terminal DI/DO 8
BI: CU signal source for terminal DI/DO 9
CI: LR position setpoint
BI: Position control enable 2
8.28 Pulse/direction interface
Technical data
–
Ground
–
Ground
–
Basic functions
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