Function Description, Circuit Examples =1 To =10 - Siemens SIMODRIVE 611 Planning Manual

05.01
9.7.1

Function description, circuit examples =1 to =10

Higher–level information and functions
Connection information, technical data, equipment selection
When configuring/engineering the drive components, safety devices, contactors
etc., listed in the circuit examples, it is mandatory to observe associated con-
nection information and instructions, technical data associated with the current
Operating and Planning Guides as well as Catalogs and Applications Manuals.
Selecting switching devices
S
S
S
S
All of the switching devices, coils, inductances, brakes etc. must be provided
with RC elements, varistors, diodes or diode combinations, if these are not al-
ready integrated in the devices. These are used to dampen overvoltages when
switching–off for EMC reasons and the ensure the functional safety.
This also applies to switching devices which are controlled from PLC outputs.
Note
The selected overvoltage limiting influences the switch–off delay of the devices.
This influence must be taken into consideration when engineering the drive
system.
Refer to Catalog NK Low–Voltage Switchgear when selecting devices and for
technical data
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
9.7 Circuit examples =1 to =10 with SIMODRIVE 611 analog
SIGUARD 3TK28 / 3TK29 safety combinations;circuit examples and the
"Autostart" and "Monitored start functions" are described in the Application
Manual "Safety Integrated," Order No. E20001–A110–M103.
SIRIUS 3 RT1 and 3 RH11 power and auxiliary contactors must be selected
with positively–driven auxiliary contacts in compliance with ZH1/457, IEC
60947–5–1.
Contact reliability
The auxiliary contacts, switching contacts of the switching devices and
the equipment to isolate from the line supply must be capable of reliably
switching low switching currents v17 V, 5 mA.
Overvoltage limiting
9 Important Circuit Information
9
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