Siemens 6SR41 series - Control Wire Way Section

Product Description
5.3 Cabinet Details
Product User Manual
90 Operating Instructions, Version AE 12/2009, A5E01454341C
connections (L1, L2, L3). The input current interrupting device is considered an integral part
of the VFD safety system.
Requirements
The required interrupting device will accept an "ENABLE TO CLOSE" as an OPEN
command from a VFD dry contact ("MV ENABLE"). This contact, when open, causes the
input current interrupting device to open and then prevents the reapplication of input power.
The "MV Enable" dry contact should act immediately and directly, without any coupling
relays involved. Additional delays tripping the input current interrupting device must be
avoided. Separate check-back signals (dry contacts) must be provided for each input current
interrupting device state, OPEN and CLOSED. Check -back signal delays must not exceed
500 ms.
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5.3.6 Control Wire Way Section
The Control Wire Way Section is located within the enclosure and above the Cell Section.
Two hinged door plates are provided so that this section can be accessed with ¼ turn cams
even while the drive’s medium voltage and auxiliary power are energized.
Note
Only qualified personnel should access this section at any time.
Following is a list of components found in this section (see Figure "Control Wire Way
Section") for a view of the Control Wireway section with all options selected).
Component Label Part Description
F4, F21, F22 Control Power Fuses
F24, F25, F26 Blower TBLW1 Fuses
1
F27, F28, F29 Blower CBLW1 Fuses
F30, F31, F32 Blower TBLW1 Fuses (Optional)