VI-FKE6-CMX 데이터 시트보기 (PDF) - Vicor
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VI-FKE6-CMX Datasheet PDF : 2 Pages
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12 1-800-735-6200
Rev 1 2 of 2
Thermal Considerations
Free Convection Derating
• 250W: Derate output power linearly
at 7.2W/˚C over 50˚C.
• 500W: Derate output power linearly
at 14.3W/˚C over 50˚C.
• 750W: Derate output power linearly
at 18.8W/˚C over 45˚C.
Forced Convection:
The curves below represent worst case data for chassis
mounted (enclosed) front ends, i.e., low line, full load.
System conditions such as higher line voltage, lighter
load or PC mount versions of the front ends will
increase reliability if the data here is used as the
nominal design criteria.
The sigmoid shape of the curves at low air flows is due
to the chassis mount cover restricting the airflow to the
inboard components until an airflow of approximately
200 LFM is achieved. Thereafter, the velocity of air
rushing over the cover causes air to be pulled in
through the side perforations, causing a rapid
improvement of cooling of internal components.
Max. Amb. Temp. vs. Airflow (LFM) Over Cover
(Full Load, 90 Vac In, Chassis Mount)
80
70
60
50
40
0
80
70
60
50
40
0
80
250W
100
200
300
400
500
600
Airflow (LFM)
500W
100
200
300
400
500
600
Airflow (LFM)
750W
Front End Selection Chart
Model
Single Phase
VI-FPE6-CUX
VI-FKE6-CUX
VI-FPE6-CQX
VI-FKE6-CQX
VI-FPE6-CMX
VI-FKE6-CMX
Mounting
PC Chassis
■
■
■
■
■
■
Three Phase
VI-TKY6-CHX
■
VI-TKY6-CEX
■
VI-TRY6-CCX
■
Output Power (Watts)
250
500
750
■
■
■
■
■
■
1,500
■
3,000
■
5,000
■
Front End Connection Diagram
INPUT
EARTH
GROUND
F1
A.C. MAINS
CONNECT
ST1 TO ST2
FOR 115Vac
OPEN FOR
230Vac
USE #4 HARDWARE
TORQUED @ 5 in.-lbs.
(4 PLACES)
Earth Ground
L1 (Phase)
L2 (Neutral)
ST1
ST2
AC OK+
AC OK–
BUS OK
VDC–
VDC+
OUTPUT
(500W, 750W
FRONT END ONLY)
Vce sat.
<0.4V @
1.5 mA
+V
<70V
Ground All Baseplates To Earth
Ground
F2
+IN
GATE IN VI-x6x
MODULE
- IN
F3
+IN
GATE IN VI-x6x
MODULE
- IN
FUSING INFORMATION
FOR SAFE OPERATION, REPLACE ONLY WITH
RECOMMENDED FUSES
250W — FUSE 1: 6.3A/250V (IEC 5x20 mm) BUSSMAN
GDB-6.3 OR 7A/250V (3AG 1/4" X 1 1/4") LITTLEFUSE
314-007 OR BUSSMAN MTH-7 OR ABC-7
FUSES 2,3,4...n: 3A/250V BUSSMAN PC-TRON
500W — FUSE 1: 12A/250V BUSSMAN ABC-12,
LITTLEFUSE 314-012
FUSES 2,3,4...n: 3A/250V BUSSMAN PC-TRON
750W — FUSE 1: 15A/250V BUSSMAN ABC-15,
LITTLEFUSE 314-015
FUSES 2,3,4...n: 3A/250V BUSSMAN PC-TRON
F4
+IN
GATE IN VI-x6x
MODULE
- IN
Fn
+IN
GATE IN VI-x6x
MODULE
- IN
Notes:
1. If input power is applied with the DC output BUS shorted, the active inrush circuitry will usually prevent
Fuse 1 from blowing. Remove power, clear shorts, wait a few minutes and reapply input power.
2. If unit is strapped for 115V operation and 230V is applied, the internal overvoltage crowbar will clear
Fuse 1. Replace fuse, strap correctly and reapply power.
3. To control EMI/RFI most effectively, the return path to earth ground from either the front end or
modules should be made via a good RF ground. User must assure proper grounding for safe operation.
70
60
50
40
0
100
200
300
400
500
600
Airflow (LFM)
107
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