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Cabinet Series Dehumidifying Dryer 21
Figure 4:
Display Readout for Mode Settings
PV
SV
SV
SV
SV
SV
SV
SV
Menu display
Level 0 mode
Level 1 mode
Level 2 mode
Setup mode
Expansion mode
Option mode
Calibration mode
4-6 Setting the Process Air Temperature
To change the process air temperature set point with the dryer running:
Press the Up Arrow button to increase the set point to the temperature you want.
Press the Down Arrow button to lower the set point to the temperature you want.
Press the Auto-tune button to initiate auto-tuning.
4-7 PLC Controller
The PLC controller uses an Allen-Bradley programmable logic controller (PLC). This “brick”-
type controller has 32 I/O points: twenty (20) inputs and twelve (12) outputs, all inputs and
outputs are 115 VAC.
All programming and logic is factory-installed on an EEPROM chip and cannot be modified. A
battery backup retains programming if power fails. Battery life is five (5) years at room
temperature.
If the alarm indicator blinks intermittently, replace the battery within one week.