Eurotherm Drives 590 DRV Digital, Product Manual

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Chapter 4 Start-up and Adjustment
590 DRV Digital Drive Product Manual
6. Once stable proportional control is attained, set SETUP PARAMETERS:: SPEED LOOP:: INT.
DEFEAT to OFF.
7. Check the speed loop performance by making step changes using the switch at terminal A3. Reduce
SETUP PARAMETERS:: SPEED LOOP:: INT. TIME CONST until the response is critically damped.
NOTE. The default value for INT. TIME CONST is 0.5 seconds. That value may be too small
for large inertia loads and cause the system to be unstable from the start.
8. Stop the drive and remove the switched signal from terminal A3.
9. Reset the calibration for terminal A3 back to 100% by setting SYSTEM:: CONFIGURE I/O:: ANA-
LOG INPUTS:: ANIN 2 (A3) to 1.0000, then run normally.
10. SAVE PARAMETERS.
Save Parameters
Stop Drive.
Remove Switched
+10 VDC at A3.
Adjust I Gain
Turn integral
defeat OFF
Monitor Response
Set INPUT 2 CAL
= 1.0000
OTHER PARAMETERS
Other parameters, for example ramp rates, may be important for the process. Different ramp rates are available
for various conditions:
Condition Parameter Name Menu
Speed Setpoint Change RAMP ACCEL TIME and RAMP DECEL TIME RAMPS
Jog Acceleration/Deceleration RAMP RATE JOG/SLACK
Controlled Stop Deceleration STOP TIME STOP RATES
Fast Stop Deceleration PROGRAM STOP TIME STOP RATES
Electronic MOP Control INCREASE RATE and DECREASE RATE RAISE/LOWER
Appendix C fully discusses the functionality and scaling of all drive parameters.
RECORDING PARAMETERS
It is important to have a hard copy of your drive parameters. This copy might consist of writing down the information
on a chart, saving the parameters to a computer disk, or printing the parameters using an external computer. The
parameter list in Appendix C has two empty columns for manually recording the drive parameters.
To save the parameters as either a hexadecimal ASCII file or as a text file ready for printing, connect a computer to the
P3 serial port. Use a telecommunications program, such as Procomm™, Windows Terminal™, or other terminal emulation
programs. Refer to "Using Microsoft® Windows™ to Document and Clone 590 DRV Digital Drives" (HA352155) for
detailed instructions using Windows Terminal™ for uploading and downloading drive parameters. Appendix G also
contains general information for using P3 to upload and download drive parameters.
PASSWORD PROTECTION
To safeguard the parameters you have set with the MMI, you can configure the 590 DRV Digital drive in a password-
protected mode. At the initial power up, the DISPLAY PASSWORD command is automatically cleared to zero. If the
controller password is set at any value other than zero, the MMI is in a restricted mode and the MMI display can be
displayed but not altered.
Entering a Password
To access the password configuration procedure from the main menu:
• PASSWORD
• M to enter the Password sub-menu
• M to enter the ENTER PASSWORD sub-menu
•
▲
to enter the password on the screen.
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