Connecting The Temperature Contact Of The Braking Resistor; Fieldbus Interfaces - Siemens SINAMICS G120 Operating Instructions Manual
Low voltage inverters
built-in units with cu250s-2 control units and
encoder evaluation
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Also See for SINAMICS G120:
- List manual (1256 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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4.5.9
Connecting the temperature contact of the braking resistor
Fire caused by an unsuitable or incorrectly installed braking resistor
Using an unsuitable or improperly installed braking resistor can cause fires and smoke to
develop. Fire and smoke development can cause severe personal injury or material damage.
● Only use braking resistors that are approved for the inverter.
● Install the braking resistor in accordance with regulations.
● Monitor the temperature of the braking resistor.
Procedure
1. Connect the temperature monitoring system of the braking resistor (terminals T1 and T2
on the braking resistor) to a free digital input on the inverter.
Figure 4-18
2. Define the function of the digital input used as an external fault with p2106.
As an example with temperature monitoring via digital input DI 3: p2106 = 722.3.
You have ensured that the braking resistor temperature is monitored.
❒
4.5.10
Fieldbus interfaces
Fieldbus interfaces of the Control Units
There are different versions of the Control Units for communication with a higher-level control
system:
Fieldbus
PROFINET
EtherNet/IP
PROFIBUS
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
WARNING
Example: Temperature monitoring of the braking resistor via digital input DI 3 on the
Control Unit
PROFIdrive
✓
2)
✓
4.5 Connecting the interfaces for the inverter control
Profiles
PROFIsafe
PROFIenergy
1)
✓
✓
---
✓
---
Installing
S7 commu‐
Control Unit
nication
2)
2)
✓
CU250S-2 PN
---
✓
CU250S-2 DP
113
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