Siemens sinumerik 840D sl Function Manual page 369

2.7.13 Configuring aids for ESR
Voltage failure
The following hardware and software components are required:
• Hardware components
• Software components
The following points must be taken into account for configuring:
1. The electronics supply of the servo drive control must be provided by the intermediate
2. A suitable backup system must be available for the NC and operator panel front; e.g. a
3. There must be a suitable backup system for supplying power to the PLC I/Os or the NCK
DC link backup
The energy available in the intermediate circuit of the drives on power failure is calculated as
follows:
E = 1/2 * C * (U
Where:
E= energy in Wattseconds [Ws]
C= total capacity of intermediate circuit in Farad [F]
U
Zk
U
min
account, but still above the deactivation threshold of 280 V in all cases)
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
– SINUMERIK 840D with, e.g. NCU 573 and HMI Advanced
– SIMODRIVE 611D with servo drive controls 6SN1 118-0DG... or 6SN1 118-0DH...
– Closed-loop controlled I/RF module (16kW and greater) with suitable pulse resistor
module and additional capacitors for the DC link if required.
– Capacitor module (6FX2 006-1AA00) for backing up the 115-230VAC power supply
for the central controller and the operator panel front or alternatively the 24VDC power
supply.
– System software: SW 5
– ESR option
circuit. For this, the user must connect the I/RF modules to the DC link (see Installation &
Start-up Guide 611D).
capacitor module for 230V power supply or a battery for 24V power supply.
terminal block I/Os, e.g. a battery.
- U )
DC 2 min 2
= contents of axis machine data MD1634 $MD_LINK_VOLTAGE_RETRACT
= lower limit for safe operation (taking the motor-specific electromotive force into
Detailed description
2.7 Extended stop and retract (ESR)
149