User guide

UG:115 vicorpower.com Applications Engineering: 800 927.9474 Page 7
PFC MegaPAC “Quick Install” Instructions (For Mechanical Drawing, see Page 10)
Mounting the PFC Mini
n Mount the PFC Mini on either of two sides.
n Use #8-32 or 4 mm mounting screws.
Maximum penetration should not exceed 0.16" (4 mm).
n Maintain 2" (5,1 cm) clearance at both ends of power supply for airflow.
Input Connections
Input Power MBJ1
n Apply input AC power to terminal block MBJ1 using a pressure
screw terminal.
n Strip length of AC power conductors to be 0.35 inches.
n Maximum torque is 4.4 in. lbs.
n Place a fuse or circuit breaker in the input line for safety requirements.
n The connector manufacturer recommends the wires not be tinned.
A ferrule can be used to prevent fraying.
Output Connections (See Page 7 for more details on output connectors)
Power Connections
Installing bus bars on output studs (when full-size module is used):
n The right stud is Positive and the le stud is the Return.
n Remove the top nut and place ring lug over output stud.
n Do not remove the lower nut next to the PCB.
n Replace and tighten the nut to a torque of 10 inch pounds.
Do Not over-tighten nuts.
Installing power connectors with 18-pin molex connectors
*
(when half size module used):
n SxJ1-1, SxJ1-10, SxJ1-11 are Positive for output #1, while pins SxJ1-2,
SxJ1-3, SxJ1-12 are the Return. SxJ1-7, S3J1-8 and SxJ1-16 are Positive for
output #2, while pins SxJ1-9, SxJ1-17 and SxJ1-18 are the Return.
[a]
n Use Molex mating receptacle #39-01-2180 with #44476-3112 terminals.
n Attach 18-24 AWG stranded wire using Molex tool #11-01-0199.
n Current PFC Minis have 18-pin SxJ1 connectors.
* Outputs with current molex connectors are limited to 9 A/pin (27 A per output).
[a]
Where x refers to the slot number.
Note:
Effective January 2001, all PFC Mini units have 18-pin connectors (Molex PN#39-01-2180) vs. the
14-pin (Molex PN# 39-01-2140). If you already have a 14-pin design in, remove the harness assembly
from the 14-pin connector housing and insert the harness connector pins into the 18-pin connector
housing. For further information, contact an Applications Engineer.
MSJ1-2 L2-NEUTRAL
MBJ1-3 L1
MBJ1-1 EARTH GROUND
INPUT CONNECTIONS
L1
47 TO 500 Hz
300VDC
---
115-230 VAC 10A
EARTH GND
WITHOUT
OPERATE
DO NOT
L2/N
NOTE: SET SCREW MAX
TORQUE = 4.4 IN. LBS.
Output Return
SxJ2
Output
SxJ1 Dual Output connector
T
T
+S
12
3
45
67
8
9
10
1112
13
14
15161718
+
-
-
-S
+
+-
++-
+S
-S+-
-
M1 Output
M2 Output
Locking Key
Pin 1 Identifier