Circuit Manual Group =4 - Siemens SINUMERIK 840D sl Manual

Typical circuit diagrams

7.6 Circuit Manual Group =4

7.6 Circuit Manual Group =4
7.6
Drive group without line contactor, however, with safety functions using a safety relay
(3TK28..). Disconnection of all drives, also of the group =5 for an emergency stop;
assignment of the digital inputs and outputs using the data of the standard macro.
● Power supply of the NCU 710 (=4.-K11)
● Control signals on the NCU 710, incl. channel formation for the Safe Standstill (SH)
● DRIVE-CLiQ connection to the power units
● PROFIBUS connection to the distributed peripherals (=4-K31)
● Control signals to the distributed peripherals
● Supply and control of the Line Module, including the integration of the auxiliary contact of
● Supply and control of the Double Motor Module (=4.-Q61), incl. channel formation for the
● Motor connection (=4.-M62), incl. holding brake and sensor system using the Sensor
● Motor connection (=4.-M65), incl. holding brake and sensor system with integrated
● Safety control for emergency stop with safety relay (=4.-K71, -K72, -K73)
Application
The higher-level PLC (=4.-K31) allows the complete drive group to be activated and
deactivated in a defined manner. The "Safe Standstill" function is activated time-delayed
safety-related over two channels (the drives should already have stopped).
Functions - drive group On
The deactivation circuit in front of the emergency stop safety switching device (=4.-K71)
must be closed using the following conditions:
● Keyswitch (=4.-S71), controller On.
● Contactor (=4.-K76) On, Control Unit, Line Module and Motor Modules components
● The emergency off pushbutton (=4.-S73) must not be operated.
● The drive group Off pushbutton (=4.-S72) must not be operated.
● The feedback loop for the safety switching device (=4.-K71) is closed.
● Drive group (=4.-S74) On pushbutton, the safety switching device (=4.-K71) is activated
7-30
function; digital inputs and outputs using the data of the standard macros
the main power switch
Safe Standstill (SH) function
Module Cabinet (=4.-K64), to the Motor Module (=4.-Q61)
DRIVE-CLiQ interface
ready. These operational states must be queried and linked by the higher-level PLC.
The "Safe Standstill" feedback of the individual drive axes on the Control Unit (=4.-K11-
X122: 7/8; DI/DO 8/9) is monitored for the safe switching state Off for each activation
cycle. This is also the case for the relay contact multiplication (=4.–K72/-K73). If required,
the safety-related functions of the user-provided machine control can also be added to
the feedback loop.
and latches. The drive group is activated. Once the DC link has been charged, and the
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0