Programming D-53
DC590+ Series DC Digital Drive
For example, to connect Digital Input 1 to SPEED LOOP::SPD.PROP.GAIN :
1. Set CONFIGURE I/O::CONFIGURE ENABLE to TRUE
2. Find the tag number for SPD.PROP.GAIN either from the function block detail in this chapter, or from the Parameter Table: MMI Order -
refer to Appendix C. (It is 14).
3. Set DIGIN 1 (C6)::DESTINATION TAG to 14
4. Set VALUE FOR TRUE to 10.00%
5. Set VALUE FOR FALSE to 30.00%
6. Reset CONFIGURE I/O::CONFIGURE ENABLE to FALSE
Digital Input 1 will now set SPD.PROP.GAIN to two values depending upon the state of the input signal:
• When the input terminal is at 24V, SPD.PROP.GAIN is set to 10.00
• When the input terminal is at 0V, SPD.PROP.GAIN is set to 30.00
DIGITAL INPUT C5
Caution
If you are isolating power on the drive output using a DC contactor, you must use an auxiliary, normally-open contact connected to terminal
C5 to immediately disable the drive's current loop when the contactor coil de-energises. Free-up terminal C5 for other uses only when
isolating main power on the input side of the drive using an AC contactor.
NOTE Some 590 DRV models isolate power on the 590 drive output using a DC contactor, so you cannot use terminal C5 as an
additional digital input.
Additional Digital Inputs
It is possible to use an Analog Input as a Digital Input to extend the number of Digital
Inputs available. Again, 0.00% is regarded as Logic 0 and 0.01% (or any other non-zero
positive value) is regarded as Logic 1.
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