Power supplies
2.
Ref.1912
· 43 ·
DDS
HARDWARE
The non-regenerative power supply PS-25B4 has three switches on the
front and next to connector X1 (see figure) for selecting the external Ballast
resistor. If you have a model like this one, refer to the attached table to select
the right resistor model according to the setting of the switches that enables
the ·I
2
t· protection.
For the switch combination shown in the figure and verified in the table, the
ballast resistor selected would correspond to the ER+TH-18/1800.
NOTE.
This is the current model with three micro-switches to configure
the selection of the Ballast resistor installed.
T. H2/7
Layout of the Ballast resistor selector switches.
represents, in the figure, the moving element of the switch.
S3
S2
S1 RESISTOR
OFF
OFF
OFF
Internal
OFF
OFF
ON
ER+TH-18/1100
OFF
ON
OFF
ER+TH-18/1000+FAN
OFF
ON
ON
ER+TH-18/1800
ON
OFF
OFF
ER+TH-18/2200
ON
ON
OFF
RM-15 (discontinued)
ON
OFF
ON
ER+TH-18/1500+FAN or
ER+TH-18/2000+FAN
N ot e .
If y ou wis h to i nstal l a NON-
FAGOR resistor, please read below.
ON
ON
ON
ER+TH-18/1500+FAN or
ER+TH-18/2000+FAN
N ot e .
If y ou wis h to i nstal l a NON-
FAGOR resistor, please read below.
Model c
urrently
in the ca
talog
PS-25B4
ON
S1
S2
S3
WARNING.
When installing a NON-FAGOR resistor, only use this switch
setting when the power of your resistor is greater than any of the ones
shown in this cell of the tables provided by FAGOR. Ignoring this warning
MAY CAUSE THE DESTRUCTION of the resistor WITHOUT PRIOR
WARNING. Therefore, make sure to install your own protection system
when installing a NON-FAGOR resistor of lower power.
Example
S3
S2
S1 RESISTOR
OFF
ON
ON
ER+TH-18/1800
Содержание DDS APS-24
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