Kaman KDM-8206 - Manual (Page 25)

Kaman Precision Products PART NO: 860515-001
www.kamansensors.com Last Revised: 6/20/2011
25
PART 6 - INTEGRAL POWER SUPPLY
WARNING : The integral power supply utilizes high voltage
(100 to 240VAC). Unplug the unit before servicing.
6.1 Power Supply
The power supply for the KDM-8206 rack enclosures is integral to the chassis and
mounted internally on the side panel. The KDM-8206 power supply provides a ±
15VDC regulated output. The same power supply is utilized for the Full 19” Sub-Rack,
the 1/2 Rack Instrument Enclosure, and the 3/4 Rack Instrument Enclosure. It has
capacity to power 1 to 12 Measuring Channels, or the Optional Display Module and 1 to
10 Measuring Channels. Power supply specifications are:
Input Power: 100VAC ±10% to 240VAC ±10%, 50/60 Hz, 76 VA
Output Power: +15VDC ± 0.5V @ 1A (Peak Load 1.5A)
-15VDC ± 0.5V @ 0.67A (Peak Load 1A)
No modifications are required to operate the KDM-8206 Sub-Racks or Instrument
enclosures for input voltages between 100 and 240VAC.
DC power is distributed from the power supply via a 4 pin connector to the Channel 1
back plane PCB in the first slot. The back plane has a mating connector and can be
either a Measuring Channel back plane PCB or a Display Meter back plane PCB. It is
then distributed to all channels in the rack via interconnecting back plane PCB
connectors for the Measuring Channels.
The power supply is a unique design to provide specific voltages and currents required
for the Measuring Channels. It is physically configured to mount on the side rail of the
Instrument Enclosures and Sub-Rack.
For Figure 21 below, Power Supply connections labeled are:
 J1 DC output to Back Plane PCB of Measuring Channel No. 1
 G1 Input ground from Power Entry Module
 G2 Chassis ground
 G3 Chassis ground
 L Line AC input from Power Entry Module
 N Neutral AC input from Power Entry Module