13
TDK-Lambda
LS 200 Series
INSTRUCTION MANUAL
5-3. Mounting Method
1)
This power supply unit is a forced air-cooling system with a built-in fan.
2)
This power supply has ventilation holes in front and the back.
In consideration of the heat radiation and safety, please keep a distance of more than 100mm from front side
and more than 50mm from rear side.
3)
Please note that ventilation will be worsened in a dusty environment.
4)
Built in fan is limited life part, which requires periodic replacement. (Replacement will be charged).
5)
The ambient temperature of this power supply is less than 50mm from the center of the front side.
6)
Maximum allowable penetration of mounting screws into the power-supply is 5mm.
7)
Recommended torque for mounting screws (M4): 1.27 N
⋅
m (13.0 kgf
⋅
cm).
6. Wiring Method
z
The input and output load wires shall be separated and twisted to improve noise immunity.
z
Both wires must be as thick and short as possible to have lower impedance.
z
Noise can be reduced by connecting a film capacitor with 0.1uF capacitance across the load terminals.
z
For safety and EMI considerations, connect the FG terminal of LS200 series to mounting set ground
terminal.
z
The recommended wire type :
Recommended crimp-type terminal
MODEL
Recommended
Wire
Recommended torque
D
(MAX)
t
(MAX)
Mounting
Pieces
(MAX)
LS200
AWG14-22
M3.5 Screws
1.0 N
⋅
m (9.8 kgf
⋅
cm) ~
1.4 N
⋅
m (13.7 kgf
⋅
cm)
6.8mm
0.8mm
2 pieces
Note 1 :
When using separate loads, it is recommended to use 2 pieces of 0.8mm thick crimp-type terminal.
Note 2 :
For recommended wire diameter, refer to wire maker recommended allowable current and voltage
drop. For higher output current model like 3.3V & 5V, bigger diameter wire is recommended.
7. External Fuse Rating
Refer to the following fuse rating when selecting the external input fuse. Surge current flows when input is
turned on. Fuse rating is specified by Inrush Current value at input turns on. Do not select the fuse according to
input current (rms) values under the actual load condition.
LS200
:
F5A , 250V
M ore tha n 50mm
F an
Front S ide
Air flow
Top
Ba ck Side
M ore tha n 100mm
