Typical circuit diagrams
7.6 Circuit Manual Group =4
Guide for the SINUMERIK 840D sl machine configuring
7-30 Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
7.6 7.6 Circuit Manual Group =4
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)
function; digital inputs and outputs using the data of the standard macros
● 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
the main power switch
● Supply and control of the Double Motor Module (=4.-Q61), incl. channel formation for the
Safe Standstill (SH) function
● Motor connection (=4.-M62), incl. holding brake and sensor system using the Sensor
Module Cabinet (=4.-K64), to the Motor Module (=4.-Q61)
● Motor connection (=4.-M65), incl. holding brake and sensor system with integrated
DRIVE-CLiQ interface
● 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
ready. These operational states must be queried and linked by the higher-level PLC.
● 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.
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.
● Drive group (=4.-S74) On pushbutton, the safety switching device (=4.-K71) is activated
and latches. The drive group is activated. Once the DC link has been charged, and the
To Next Page
Loading...
Need help?
General
