Appendix B: Recommended Power And Cable Configurations; Example A - Cabling Under 50 Feet, Dc Power; Example B - Cabling 50 Feet Or Greater, Ac Power To Full Wave Bridge; Example C - Cabling 50 Feet Or Greater, Ac Power To Power Supply - Intelligent Motion Systems MDrive17Plus Hardware Reference Manual

NOTE: These
recommendations
will provide optimal
protection against EMI and
RFI. The actual cable type,
wire gauge, shield type and
filtering devices used are
dependent on the customer's
application and system.
NOTE: The length of
the DC power supply
cable to an MDrive
should not exceed 50 feet.
NOTE: These
recommendations
will provide optimal
protection against EMI
and RFI. The actual cable
type, wire gauge, shield
type and filtering devices
used are dependent on the
customer's application and
system.
NOTE: Always use
Shielded/Twisted
Pairs for the MDrive
DC Supply Cable and the AC
Supply Cable.
A-4
ap p e nd i x B
Cable length, wire gauge and power conditioning devices play a major role in the performance of your MDrive.
Example A demonstrates the recommended cable configuration for DC power supply cabling under 50 feet
long. If cabling of 50 feet or longer is required, the additional length may be gained by adding an AC power
supply cable (see Examples B & C).
Correct AWG wire size is determined by the current requirement plus cable length. Please see the MDrive Sup-
ply Cable AWG Table at the end of this Appendix.
Example A – Cabling Under 50 Feet, DC Power
DC Voltage from
Power Supply
500 µf
Per Amp
Shield to Earth Ground
on Supply End Only
Example B – Cabling 50 Feet or Greater, AC Power to Full Wave Bridge
Transformer - 10 to 28 VAC RMS for 48 VDC Systems
20 to 48 VAC RMS for 75 VDC Systems
π
≥ Required Current
Shield to Earth Ground
on Supply End Only

Figure B.2: DC Cabling - 50 Feet or Greater - AC To Full Wave Bridge Rectifier

Example C – Cabling 50 Feet or Greater, AC Power to Power Supply
120 or 240 VAC
Dependent on
Power Supply
Shield to Earth Ground
on Supply End Only

Figure B.3: AC Cabling - 50 Feet or Greater - AC To Power Supply

Recommended Power and Cable Configurations
Cable Length
less than 50 Feet
+
-
Shielded Twisted Pair
(Wire Size from
MDrive Supply Cable AWG Table)

Figure B.1: DC Cabling - Under 50 Feet

Type RFI Filter
Shielded Twisted Pair
(Wire Size from
MDrive Supply Cable AWG Table)
Cable Length
as required
π
Type RFI Filter
Shielded Twisted Pair
≥ Required Current
(Wire Size from
MDrive Supply Cable AWG Table)
Cable Length
as required
π
Type RFI Filter
≥ Required Current
To MDrive -
+
Ferrite
Beads
NOTE:
Connect the cable illustrated
in Example A to the output of
the Full Wave Bridge
+
To Cable A
-
Full Wave Bridge
NOTE:
Connect the cable illustrated
in Example A to the output of
the Power Supply
DC Volts Out
+
To Cable A
-
Power Supply
MDI Hardware Manual Revision R052506