| Q1. |
How do I change degrees F to degrees C? |
| A |
Go to the setup page, main system and choose F or C.
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| Q2. |
Why is my controller not controlling at set point? What can I do to fix it? |
| A |
If the controller is not controlling properly, the PID value needs to be adjusted. The easiest way to do this is to use the autotune section of the user's manual.
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| Q3. |
How do I wire an RTD; what is the color code? |
| A |
A three-wire RTD sensor will have two wires the same color. These are the S2 and S3 connections. The odd color wire is the S1 connection.
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| Q4. |
Why can't I access certain pages, menus or parameters? |
| A |
The parameters you are looking for may not be available in your model of controller. The OEM that installed the F4P may have locked users out of certain pages and menus. The F4P's software may have been locked by a supervisor or someone else at your facility.
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| Q5. |
How do I transfer to open loop control? |
| A |
Press the A/M key (auto/manual). A pop-up menu will ask if you want to go to manual mode. Push the up key to select Yes.
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| Q6. |
How do I find out what a particular parameter means or what its function is? |
| A |
Use the 'i' key. Use the up and down keys to point the cursor to the parameter in question. Press the 'i' key once more to exit the information screen.
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| Q7. |
What is Modbus and what software do you have to use with this controller? |
| A |
A Modbus is a highly reliable protocol developed by AEG Schneider (Modicon) which uses packets of information. Many third-party software packages are available which use the Modbus (RTU) protocol. Comm6 is a software package from Watlow and available free of charge on the Watlow web site at http://www.watlow.com/literature/prodtechinfo.
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| Q8. |
Does the F4 support slidewire feedback and remote set point? |
| A |
Yes, the slidewire must be in the resistance range of 0 to 1200 ohms. The remote set point must configured and wired according to the user's manual.
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| Q9. |
Can I change the input and output modules in the field? |
| A |
Yes, these can be ordered and installed in the field.
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| Q10. |
How do I change the set point? |
| A |
Press the arrow keys to increase or decrease the set point. The controller will go to the new value.
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| Q11. |
Can I operate this control at 12 Volts dc? |
| A |
No, the low voltage option is 24 to 28 V (ac/dc).
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| Q12. |
What letter is the option for ordering communications? |
| A |
None, communications comes standard on the F4P. (Available in EIA 232/485)
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| Q13. |
Why can't I program my unit for cascade? |
| A |
You must have Option 'B' under Enhanced Control Operation. Check the unit model number.
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| Q14. |
Can I use sensor input 1 for output 1A and sensor input 2 for output 1B? |
| A |
No, the F4P is a single channel controller. To do this, you would need a dual channel controller with two channels independent of each other.
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| Q15. |
I am replacing an old Watlow 1/4 DIN control. Will the F4P fit in the same space or is it larger in size? |
| A |
The panel cut out will be the same. Behind-the-panel depth is just under 4.0 in. (102 mm), slightly shorter than older models.
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| Q16. |
Can I auto-tune my system at different temperatures and have the unit retain those PID settings for when I need them again? |
| A |
Yes, this unit provides multiple PID sets. (Minimum of five PID Sets)
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