Baldor MicroFlex e100, Installation Manual

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Basic Installation 3-17 MN1942
3.4.8 24 V control circuit supply
A 24 VDC supply must be provided to power the controlling electronics. This is useful for safety
reasons where AC power needs to be removed from the power stage but the controlling
electronics must remain powered to retain position and I/O information.
A separate fused 24 V supply should be provided for the MicroFlex
e
100. If other devices are
likely to be powered from the same 24 V supply, a filter (Baldor catalog number FI0014A00)
should be installed to isolate the MicroFlex
e
100 from the rest of the system. Alternatively, a
ferrite sleeve may be attached to the supply cable near connector X2.
Location Connector X2
Nominal input
voltage
24 VDC
Range 20-30 VDC
Input current
Maximum
Typical
1 A continuous (4 A typical power on surge, limited by NTC)
0.5 A - 0.6 A (not powering feedback device)
0.6 A - 0.8 A (powering feedback device)
Tightening torque for terminal block connections is 0.5-0.6 N·m (4.4-5.3 lb-in).
Customer supplied
24 VDC
GND
24 V filter
(optional)
+24 V
STAR
POINT
Incoming safety
earth/ground (PE)
* Recommended fuse: Bussman S504 20 x 5 mm anti-surge 2 A.
** Recommended ferrite sleeve: Fair-Rite part 0431164281 or similar.
Use a twisted pair cable, with
ferrite sleeve attached close
to connector X2.
Ferrite
sleeve**
Fuse *
Figure 6 - 24 V control circuit supply connections