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Sterling 882.00294.00, DH1-610-2 4-2 System Operation Procedures

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UdSP Upper Display Look

None, Process Value, Limit 1 Low Set,

Limit 1 High Set, Limit 2 Low Set, Limit

2 High Set, Alarm 2 Low Set, Alarm 2

High Set, Limit 3 Low Set, Limit 3 High

Set, Alarm 3 Low Set, Alarm 3 High Set

Process -

LdSP Lower Display Look

None, Process Value, Limit 1 Low Set,

Limit 1 High Set, Limit 2 Low Set, Limit

2 High Set, Alarm 2 Low Set, Alarm 2

High Set, Limit 3 Low Set, Limit 3 High

Set, Alarm 3 Low Set, Alarm 3 High Set

Limit 1

High Set -

LOC Lockout

(0) no lockout, (1) Programming and

Setup Page Locked, (2) Limit Set

Points are the only Operation Page

parameters accesible, (3) Full Lockout.

0 2

4-2 System Operation Procedures

1. Turn the disconnect switch on the control panel to the ON position. Power is applied to the voltage

line fuses and line side of the control power switch.

2. Turn the control power switch to the ON position. Power is applied to the PLC and touch screen.

Push the start button on the PLC and the valve will move to the start position as follows:

a. The valve motor rotates until the cam switch makes 2 transitions.

b. If the cam switch does not make a transition within 10 seconds, a valve

motor fault alarm is generated. The alarm horn and light are activated. The

valve motor, heaters, and blower shut off. Pressing the ALARM SILENCE

pushbutton will deactivate the alarm horn and light.

Note: Cycle control power to restart the dryer.

c. The valve will normally complete one full cycle (revolution). If sequence

shutdown is not initiated (in 10 Seconds) and control power switch or

disconnect are turned off:

1. The bed in process at power-down will remain in

process.

2. The bed in regeneration at power-down will remain in

regeneration.

3. The regeneration timing cycle will restart from the

beginning.

3. Once the control power is on and no fault conditions exist, turning the Off-On switch to the ON

position and pressing the START button on the touch screen will start the dryer as follows:

a. The process heater is turned on and controlled by the PLC.

b. The process/regen blower is started.

c. The regen heater is turned on and the regeneration timing sequence is

initiated. The regen heater is controlled by the PLC.

Portable Drying/Conveying Systems Chapter 4: Operation 38 of 63

Contents

Main SDAA 25-100 Small Dryer With AP-1 Controls Shipping Information Table of Contents CHAPTER 1: SAFETY ................................................................6 CHAPTER 2: FUNCTIONAL DESCRIPTION............................ 11 CHAPTER 3: INSTALLATION ..................................................15 CHAPTER 4: OPERATION .......................................................21 CHAPTER 5: MAINTENANCE.................................................. 40 CHAPTER 6: TROUBLESHOOTING........................................ 48 CHAPTER 7: APPENDIX ..........................................................55 Chapter 1: Safety 1-1 How to Use This Manual DANGER! 1-2 Safety Tag Information 1-3 Warnings and Precautions 1-4 Responsibility Page Page Chapter 2: Functional Description 2-1 Models Covered in This Manual 2-2 General Description 2-3 Standard Features 2-4 Options 2-5 Safety Devices and Interlocks Page Chapter 3: Installation 3-1 Uncrating the Equipment 3-2 Rigging and Placing the Dryer Note: Floor Mounted Dryers can be lifted by hoist or fork lift. USE FORK LIFT TRUCK USE Overhead Crane 3-3 Electrical Connections 3-4 Setup Procedures Checking for Proper Blower Rotation Drying Hopper Air Trap Considerations (If Equipped) Installing the Optional Aftercooler 3-5 Initial Start-up Pre-Startup Checks Starting Up the Dryer The process blower starts. Auto-Tuning the Dryer (Requires Supervisory Password) Page Chapter 4: Operation 4-1 Controller Description and Operation Page Page Page Page Page Page Page Page Page Page Page Page Page Page Restoring the WATLOW Redundant Safety Controller to Factory Setup Entering Operating Parameters to Select Modes Figure 6: Setting List for Redundant Safety Controller (WATLOW), Part No. A0568961 4-2 System Operation Procedures process. regeneration. beginning. 4-3 Shutting Down the Dryer Chapter 5: Maintenance 5-1 Preventative Maintenance Schedule Portable Drying/Conveying Systems Chapter 5: Maintenance 40 of 63 replacement date inspection 5-2 Preventative Maintenance Servicing Process Air Filters Recommendations for Cleaning and Replacing Filters Figure7: Air Filter Location and Disassembly Vacuuming Cleaning with Compressed Air Servicing the Dew Point Monitor 5-3 Corrective Maintenance Symptoms of Worn Desiccant + FIRST AID + In case of eye contact, immediately flush eyes with plenty of water for at least 15 minutes. SEE A PHYSICIAN IMMEDIATELY IF IRRITATION PERSISTS. Replacing Worn Desiccant Figure 8: Desiccant Bed Location and Disassembly Figure 9: Required Desiccant Amounts Replacing the regeneration heaters Procedures (see figure 8). Replacing the Process Heater Figure 10: Process Heater Location and Disassembly Procedures Replacing/Cleaning the Cooling Coils Figure 11: Cooling Coil Location and Disassembly Page Chapter 6: Troubleshooting 6-1 Introduction Page Page Page Page Page 6-2 Determining Temperature Controller Errors or Sensor Errors Using a Thermocouple Chapter 7: Appendix 7-1 Warranty Warranty Specifications Warranty Restrictions Warranty Liabilities 7-2 Optional Components 7-3 Technical Specifications Annex B Information Aftercooler Design Specifications Portable Drying/Conveying Systems Chapter 7: Appendix 57 of 63 7-4 Drawings and Diagrams Figure 12: Standard Model (180F to 250F) Air Flow Schematic Page Figure 14: Low Heat Model (120F to 250F) Air Flow Schematic 7-5 Spare Parts List Figure 15: Level 1 Spare Parts List (Electrical & Mechanical) Portable Drying/Conveying Systems Chapter 7: Appendix 60 of 63 Page 7-6 Returned Material Policy 7-7 Dryer Identification (Serial Number) Tag 7-8 Technical Assistance Portable Drying/Conveying Systems Chapter 7: Appendix 63 of 63 Parts Department Service Department Sales Department