TDK-Lambda CUS400M Bedienungsanleitung Seite 17

CUS400M Instruction Manual
Variations and limitations of use:
1. Component temperatures, for customer air or convection cooled models, must be monitored in the end
use application as described in the " Cooling for Unit Temperature Table" below .
Cooling for unit
The following method must be used for determining the safe operation of PSUs.
The components listed in the following table must not exceed the temperatures given. To determine the
component temperatures the heating tests must be conducted in accordance with the requirements of the
standard in question. Consideration should also be given to the requirements of other safety standards.
Test requirements include: PSU to be fitted in its end-use equipment and operated under the most adverse
conditions permitted in the end-use equipment instruction manual/specification and which will result in the
highest temperatures in the PSU. To determine the most adverse conditions consideration should be given
to the end use equipment maximum operating ambient, the PSU loading and input voltage, ventilation, end
use equipment orientation, the position of doors & covers, etc. Temperatures should be monitored using
type K fine wire thermocouples (secured with cyanoacrylate adhesive or similar) placed on the hottest part
of the component (out of any direct airflow) and the equipment should be run until all temperatures have
stabilised.
Cooling for Unit Temperature Table:
Circuit Ref.
L1
L2
L6, L7
C1, C9, C13, C14, C15
C4
C6, C7
C5, C8, C10, C11, C12
C2 (if option board fitted)
TX1
TX3 (if option board fitted)
J1
See highlighted areas on PCB
layout below.
Higher temperature limits (in brackets) may be used but product life may be reduced.
Description
Choke
Boost Choke
Boost Choke
Electrolytic Capacitors
PFC Input Capacitor
X Capacitors
Y Capacitors
Y Capacitor
Transformer Winding
Transformer Winding
Input Connector
PCB Reference Points
Page 17 of 22
Max. Temperature
(°C)
105
125 (130)
125 (130)
105
105
100
105 (125)
105
130
130
105
130
260519-04 Oct 2023