Intelligent Motion Systems MFM Motion Detector, Operating Instructions Manual

Page: 29 / 74

9
Part 2: Interfacing and Configuring
P3
Unregulated
Linear or
Switching
Power Supply
Power
Ground
+VDC
Shield to
Earth Ground
+
–
! WARNING! Do not connect
or disconnect cabling while
power is applied!
Optional Prototype
Development Cable:
PD02-3400-FL3
Pin 1 Pin 2
Basic DC Power Connection
Figure 2.2.2: MForce PowerDrive DC Power Connection
Recommended Power and Cable Configurations
Cable length, wire gauge and power conditioning devices play a major role in the performance of your MForce
PoweDrive.
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 Table 2.2.1 for
recommended wire gauges.
Example A: DC Power Cabling Under 50 Feet
Shield to Earth Ground
on Supply End Only
DC Voltage from
Power Supply
500 µf
Per Amp
+
-
Ferrite
Beads
P
Type RFI Filter
r Required Current
+
-
Shielded Twisted Pair
Cable Length
less than 50 Feet
P3:2
P3:1
Figure 2.2.3: DC Cabling - Under 50 Feet
WARNING! DO
NOT connect
or disconnect
power leads
when power is applied!
Disconnect the AC power
side to power down the
DC power supply.