Fagor DDS Series Hardware Manual page 280

   Installation
8.
310
DDS
HARDWARE
Ref.1912
· 280 ·
H o w t o i n s t a l l A N e x t e r n a l B a l l a s t r e s i s t o r w i t h i n t e r n a l
thermostat and with no fan
WARNING. On top of the ER+TH modules, the air temperature can reach
values over 120°C/248°F. Therefore, the resistor should be mounted away
from the rest of the modules or even outside the electrical cabinet, always
vertically and away from cables and other temperature sensitive material.
Always install it vertically
Re
L+
Ballast resistor connection terminals.
Diagram
Connect as shown in the image the Ballast resistor terminals to the Re and L+
terminals of the terminal strip of the Ballast of the power supply or compact
drive accordingly.
F. H8/14
Installing AN external Ballast RESISTOR with internal thermostat and with
no fan.
Tk connection terminals of
the internal thermostat.
Connect as shown in the image either one of
the two pins to + 24 V DC of the external power
supply of the electrical cabinet and the other
one to a PLC input.
Important. Remember to manage the chosen
PLC input in the PLC program to generate an
error when exceeding the limit temperature
(160°C) detected by the sensor and to open
the contact.