Signal Interconnection
6.4 Application 4
Guide for the SINUMERIK 840D sl machine configuring
6-10 Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
Interconnection of the PLC input signals
● "Infeed ready" (NCU terminal X132.8)
The infeed is ready when the "1" signal is on.
Interconnection of the PLC output signals
Notice
To achieve a safe control of the line contactor and the drive-integrated SH/SBC safety
function by SINAMICS, the control signals must be provided by a safety relay (3TK28) or a
SIMATIC F controller. This is required so that a deactivation is achieved in accordance with
the required safety categories.
● "ON/OFF1" of the infeed (NCU terminal X122.1)
The 0/1 edge activates the infeed. A lock with "infeed ready" (NCU terminal X132.8) is
desirable.
Note
The "ON/OFF1" signal must also be locked by the safety controller.
● "2. OFF3" for all axes (NCU terminal X122.2)
The "2. OFF3" will be forwarded to all axes of the NCU. The "2. OFF3" must be
interconnected to the provided NX components (NX terminal X122.2). This means that
the axes downstream from the NX also receive the enable.
Note
The "2. OFF3" signal must also be locked by the safety controller.
Interconnection between the safety controller and the NCU and NX components
● The SH/SBC function must be controlled by the safety controller using two channels.
The first channel goes to the NCU/NX.
The second channel goes to the Motor Module.
If required, appropriate groups (1/2) can be formed that must be controlled depending on
the switching condition. The feedback of the SH/SBC function must be evaluated in the
safety controller.
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