2 - Fagor Automation

PS-25B4
Model currently in the catalog
NOTE. This is the current model with three micro-switches to configure
the selection of the Ballast resistor installed.
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 “I²t” protection. Remember that selecting the internal resistor
or having the RM-15 module means disabling the “I²t” protection because
they both include their own thermostat for their own protection.
T. H2/7 Layout of the ballast resistor selector switches
S3
S2
S1
ON
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)
DISABLED or
ON OFF ON ER+TH-18/1500+FAN or
ER+TH-18/2000+FAN
DISABLED or
ON ON ON ER+TH-18/1500+FAN or
ER+TH-18/2000+FAN
represents the moving element of the switch in the figure.
Example.
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.
S3 S2 S1 RESISTOR
OFF ON ON ER+TH-18/1800
Power supplies
POWER SUPPLIES
Non-regenerative power supplies 2.
DDS
HARDWARE
Ref.1307
41