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| Maintenance 51 |
| Procedure 11 - Calibrating the meter |
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| Step |
| Action | |
| 1 | Make sure the remote sense leads are disconnected by removing | ||
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| the corresponding RC− fuse from the controller. | ||
| 2 | Set the VOLT/AMP switch to AMP. Set the output load of the plant | ||
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| so the rectifier delivers a current of approximately 100 A. Measure | ||
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| the voltage between VOUT+ and VOUT − , located on the front panel, | ||
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| with a digital meter. |
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| 3 | Convert this measured voltage to a current value ( 50 mV | ||
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| corresponding to 250 A ). |
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| current | = 250 A | |
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| voltage | 50 mV | |
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| If the voltage measured is 20.2 mV : | ||
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| measured current | = | 250 A X ( 20.2 mV ) = 101 A |
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| 50 mV |
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| Rotate the CUR CAL potentiometer on the display panel until this | ||
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| value is displayed. |
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| 4 | Put the VOLT / AMP switch to VOLT. Adjust the V CAL | ||
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| potentiometer so that the reading displayed on the meter of the | ||
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| rectifier is identical to the reading on the digital meter. | ||
| 5 | Put the rectifier to OFF and reconnect the sense leads. | ||
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| | end |
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6.4.Resetting the rectifier after an HVSD ( high voltage shutdown )
To reset the rectifier after an HVSD condition has occurred execute one of the steps contained in Procedure 12.
Procedure 12 - Resetting the rectifier after a high voltage shutdown
Step Action
Locally
1Toggle the ac circuit breaker on the unit itself, or the associated ac breaker in the distribution panel OFF and ON ( wait until the green ac ON LED extinguishes before toggling the breaker back to ON ).
Remotely
2Apply a ground signal at the HVSDR input of the rectifier.
end
Emerson Energy Systems | Rectifier 200I/48 NT5C05C Installation and User Manual |
