Difference between revisions of "Solenoid Bumper"
From Ed's Mediawiki
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| − | The solenoid valves generally used for FRC are 12 or 24 volt units rated about about one watt, which translates to .083 amps for 12 volts and .042 amps for 24 volts. This is not enough current to justify using the spike solid state relays we use for single speed motor controls, but it is too much current for low current logic outputs. The serve this purpose, FIRST supplies a switch module for the CRIO that is capable of providing .75 amps switched from an external power supply. | + | The solenoid valves generally used for FRC are 12 or 24 volt units rated about about one watt, which translates to .083 amps for 12 volts and .042 amps for 24 volts. This is not enough current to justify using the spike solid state relays we use for single speed motor controls, but it is too much current for low current logic outputs. The serve this purpose, FIRST supplies a switch module for the CRIO that is capable of providing .75 amps switched from an external power supply. This module is just a switching device that completes a connection from the power that you supply to an output that corresponds to a switching signal that comes from the CRIO. |
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| + | [[File:Solenoid-bumper-ckt.jpg]] | ||
Revision as of 11:44, 4 November 2011
The solenoid valves generally used for FRC are 12 or 24 volt units rated about about one watt, which translates to .083 amps for 12 volts and .042 amps for 24 volts. This is not enough current to justify using the spike solid state relays we use for single speed motor controls, but it is too much current for low current logic outputs. The serve this purpose, FIRST supplies a switch module for the CRIO that is capable of providing .75 amps switched from an external power supply. This module is just a switching device that completes a connection from the power that you supply to an output that corresponds to a switching signal that comes from the CRIO.
