I have some questions on the usage of the DRR245.
Can the two relays be set and operated independent of the 4-20mA output?
How do I set the relay parameters if using separate from 4-20mA output?
Does the 4-20mA output provide modulation for valve control? (ie: 12mA is half open)
I want to be able to use both of the relays to turn on/off apparatus as dry contacts and or as motor contactor coil control (understanding VA limits), while also being able to control a 4-20mA modulating control valve separately. Is this possible, or are the two relays solely alarms based on limits of the 4-20mA set point?
DRR245 Use Questions
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Pixsys tecnico 6
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Re: DRR245 Use Questions
Good morning,
If you set the parameter [C.out]= "4.20", you can adjust the valve with the 4-20mA signal. Relays Q1 and Q2 can be independent and are configured with the parameters of alarm 1 and 2.
If you want to adjust the valve using the 4-20mA output, you must set the [Pb] parameter to a value greater than zero.
Best Regards.
If you set the parameter [C.out]= "4.20", you can adjust the valve with the 4-20mA signal. Relays Q1 and Q2 can be independent and are configured with the parameters of alarm 1 and 2.
If you want to adjust the valve using the 4-20mA output, you must set the [Pb] parameter to a value greater than zero.
Best Regards.