Assigning The Main Switches; Use Of A Leading Contact For Line Isolating Device - Siemens Simodrive 611 Configuration Manual

7 Line Supply Connection
7.3 Overcurrent protective devices, transformers and main switch
7.3.5

Assigning the main switches

Table 7-12 Assignment of the main and auxiliary switches, e.g. only one NE module and short–circuit power
SCCR 65 kA
5 kW
Switch 3LD2103–0TK...
type +
3LD9220–3B
16 kW
Switch 3LD2504–0TK...
type +
3LD9250–3B
7.3.6

Use of a leading contact for line isolating device

7-226
The main switches must be chosen appropriately for the machine (scope of the
installation), the supply line characteristics (voltage, short–circuit power), re-
gional regulations for plant/machine constructors.
Recommendation:
Siemens 3LD.../3KA... switch types (as listed in the SIEMENS "Low–Voltage
Switchgear" catalog)
For UI modules
10 kW 28 kW
3LD2504–0TK... 3LD2704–0TK...
+ +
3LD9250–3B 3LD9280–3B
For I/R modules
36 kW 55 kW
3LD2704–0TK... 3KA5330–1EE01
+ +
3LD9280–3B 3KX3552–3EA01
For various plant and system configurations the use and the correct connection
of a leading contact (integrating terminal 48) for the switching element is either
absolutely necessary or not required. In this connection, switching elements
are:
S
Power disconnectors (mains switch, line supply contactor)
Note
During the shutdown, to prevent damaging overvoltages that can damage
parallel–operated loads, terminal 48 of the NE modules must be switched off
10 ms before deenergizing the line supply contacts.
Main switches (breakers) with leading auxiliary contact can be used to ensure
that terminal 48 of the NE modules is deenergized using a leading contact.
Leading shutdown is not required for certain drive configurations.
For information refer to Section 7.3.6.
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
80 kW 120 kW
3KA5530–1EE01 3KA5730–1EE01
+ +
3KX3552–3EA01 3KX3552–3EA01
© Siemens AG 2012 All Rights Reserved
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