CSZ EZT-570i, Техническое руководство

Страница: 60 / 95

EZT-570i Technical Manual
60
Chamber Light(s) (Q5): This output toggles on and off to turn the chamber light(s) on and
off when the light icon on the HMI is pressed.
Window Heater (Q6): This output is used to turn the window heater(s) on and off based
on the air temperature set point set in the configurator. When
the air temperature drops below the set point, the output will turn
on after a 1 minute delay. Once the air temperature rises above
the set point, the output will then turn off after a 1 minute delay.
The output will also turn on whenever the humidity system is
enabled. This keeps the window clear during high dewpoint
conditions in the chamber.
Product Safety (Q7): This output acts as a “chamber run” verification for the customer
to use as a product under test enable. As long as the chamber
is running, i.e., controlling temperature, this output will be on.
When the chamber is turned off or in a critical alarm condition,
this output is off.
System 1 Solenoids (Q30):
This output is used to turn on the liquid line and hot gas
solenoids on system 1 when the unit is equipped with
pumpdown. This allows the solenoids to open and close
independently of system 1 compressor operation so that the
system can be pumped down.
During normal cooling operation, this output will turn on with the
system 1 compressor output (Q3). When the refrigeration
system is no longer required to run, this output will turn off to
isolate the high side of the system while the compressor
continues to run in order to pump down the system.
Maximum Heat Enable (Q31):
This output is used to enable and disable the maximum heating
SSR based on the percentage of output set up in the
configurator. When the loop output exceeds the maximum
output on percentage for the on delay period set in the
configurator, this output will turn on.
Humidity System (Q32): This output is used to turn the humidity system on and off with
chamber event 2.
Maximum Humidify Enable (Q33):
This output is used to enable and disable the maximum boiler
SSR based on the percentage of output set up in the
configurator. When the loop output exceeds the maximum
output on percentage for the on delay period set in the
configurator, this output will turn on.
Dry Air Purge System (Q34): This output is used to turn the dry air purge system on and off
with chamber event 4. It will also turn on automatically when the
chamber is equipped with the frozen coil (low RH) option, when
needed to reach a low humidity condition.
Frozen Coil Enable (Q35):
This output is used to enable and disable the operation of the
low RH/frozen coil components. In normal humidity mode, this