ConverterPAC Description
ConverterPACs are the family of slide-in output assemblies used in MegaPAC power supplies. There are
currently 12 ConverterPACs available for use. Most ConverterPACs of the same length are interchange-
able within a MegaPAC and between different AC input MegaPAC chassis. They can be added, moved,
or changed as necessary. The type of ConverterPAC used in this slot is a DualQPAC.
DualQPAC (LD)
The DualQPAC output assembly consists of two 1st Gen VI-J00 DC to DC converters that
provide two isolated output voltages. DualQPACs can provide up to 100 Watts of out-
put power from each output. The DualQPACs are fused with a PC-Tron, DC-rated,
fast-acting fuse. An active preload ensures the DC to DC converter operates in its
highest noise performance range. As the load on the module increases, the preload
removes itself from the circuit. Ripple and common mode noise filters on the output
reduce ripple under any load conditions to 10mV p-p or 0.15% whichever is greater.
On DualQPACs, the customer has access to the Trim pin on the module and can adjust
the output voltage using an external circuit. OVP and OTL is not available. Please note
that for the DualQPAC the output voltage from either output terminal to chassis should not
exceed 100 Vdc, or peak. DualQPACS can only be used in the extended length MegaPACs.
Newer DualQPACs have Autosense. This feature automatically locally senses the output if remote sense
is not used. To check if an output has the Autosense feature, measure the impedance from the + Out to
+ Sense and - Out to - Sense pins. If the impedance is 5 ohms, then the output has Autosense and does
not require local sense jumpers. If a unit does not have Autosense, sense connections must be made For
further technical information about ConverterPACs, contact Applications Engineering at 1-800-927-9474.
Options available for DualQPAC
+
OPTIONS
D Power Good
AVAILABILITY
OPTIONAL
+
T
Trim +/-10%
Trim: +10%/-50%
NOT AVAILABLE
NOT AVAILABLE
+
F
+
The customer has access to the Trim pin on the module and can adjust the output voltage using an external circuit.
DualQPAC Output and Connector Pin Identification
J1-B
J1-B-PIN1
J2-PIN1
(OUTPUT CONNECTORS)
Output connector kits (optional) for your
MegaPAC supply are available for
purchase from Westcor:
Part Number
MATING HDWR:
1 AND 4 +V OUT
2 AND 5 -V OUT
4
5
6
1
2
HOUSING- MOLEX P/N: 39-01-2060
TERMINALS- MOLEX P/N: 39-00-0039
CRIMP TOOL MOLEX P/N: 11-01-0197
TRIM TOP
TRIM BOT
N/C
7
6
5
4
3
2
3 +R/SENSE 6 -R/SENSE
3
Single phase
Vcc IN
input
19-130040
19-130041
19-130042
POWER GOOD
Three phase
input
POWER GOOD INVERTED
J1-A
(OUTPUT CONNECTORS)
1
SIGNAL GROUND
MATING HDWR:
DualQPAC
output
1 AND 4 +V OUT
2 AND 5 -V OUT
1
HOUSING- MOLEX P/N: 39-01-2060
TERMINALS- MOLEX P/N: 39-00-0039
CRIMP TOOL MOLEX P/N: 11-01-0197
4
5
6
2
3
J1-A-PIN1
3 +R/SENSE 6 -R/SENSE
For more details about any Westcor products, contact the factory at 1-800-735-6200 or go to our website at
www.vicorpower.com
1/2005
VICOR [ VICOR CORPORATION ]