Athena Technologies 6050 - Manual (Page 8)

Output Modules
The Athena 6050 offers users field interchangeable output
modules. This unique feature makes it possible to fill
output requirements for a variety of applications with
a single controller model.
Module Type B: This 7A/5A relay (at 120/240 Vac) is used for
driving resistive heaters.
NOTE: Do not use this output module with mechanical
contactors because they generate an excessive EM1
field which can interfere the 6050's microprocessor.
Instead we recommend "T" output modules for this
application.
Module Type F: This 4-20 mA output module can deliver
full output to loads having an input
impedance of 500 Ohms or less. The cycle
time setting must be ZERO for smooth
current output.
A push-on terminal is utilized as a
return for ground currents of the milliamp
source. It is connected internally to the
mating lug on the heat sink. To avoid
ground loops, drive floating (ungrounded)
loads or use isolated thermocouples.
Module Type T: This solid state relay is capable of 1 AM?
at 120/240 Vac. It is zero voltage switched
and optically isolated from the drive signal.
With it, resistive loads up to 120 watts at
at 120 Vac and 240 watts at 240 Vac may be
controlled directly. Using direct control
there is no lower limit on the cycle time
setting (down to 60 milliseconds). Larger
loads may be controlled utilizing an external
contactor. In this case, it is advisable to use
cycle settings of ten seconds or greater to
minimize contactor wear. External suppression
of the contactor is mandatory.
Module Type S: Similar to F, but pulsed 2OV/2OmA DC output
for driving solid state relays. Up to 6
(input series connected) solid state relays
can be used. Cycle time can be set to optimize
the load response time requirements without
sacrificing S.S.R. life.
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