Mains Infeed Module; Mains Infeed Connection (Oi, I/Rf) - Siemens SINUMERIK FM-NC Installation And Startup Manual

03.96
2.1.2

Mains infeed module

Mains infeed
The mains infeed module performs the following tasks:
module
S
S
S
Open-loop-
If the internal braking resistance is not sufficient, pulsed resistor modules can be
controlled infeed installed.
OI
Infeed/regenerative
The I/RF module feeds back into excess DC link energy generated during brak-
feedback module ing the supply system.
I/RF
Arrangement of
The I/RF or OI module is installed as the first module on the left.
mains infeed
References:
module
 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
Supplies power for the SINUMERIK 840D and axis modules
Generates the DC link voltage for the motors
Regenerative feedback (I/RF) or braking resistor (OI) for generator-mode
operation
PJ1/ Planning Guide for SIMODRIVE 611D
2 Configuration
2.1 Mechanical configuration
2
2-21