| Question / Issue |
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| Can I change my incoming line voltage from 115 V to 230 V or vice-versa? |
| Answer / Solution |
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Yes. The Ndrive, Ensemble and Soloist HP, HPe, and CP 10,20,30A drive families operate at any motor supply input voltage less than 230VAC. When changing the motor supply input voltage, the digital current loop gains must be adjusted to preserve the loop characteristics.
When changing from 115 VAC to 230 VAC motor power, the IGainKi and IGainKp axis parameters must be reduced by a factor of 2. When changing from 230 VAC to 115 VAC, the IGainKi and IGainKp axis parameters must be increased by a factor of 2. NParam or the Configuration Manager may also be used to recalculate the current loop gains. A setup screen is launched by pressing the Calculate button from within Nparam or the Configuration Manager. Note that 115 VAC input results in an internal 160 VDC motor supply, and 230 VAC input results in an internal 320 VDC motor supply voltage.
When changing from 230 VAC to 115 VAC motor power, a reduction in maximum motor speed and peak current capability may result. This is due to the motor's back emf and winding resistance.
The Npaq and Epaq controllers must be connected to the proper line voltage as listed on the power input label. High power 50,75,100,150A drives which contain an integral fan must be ordered with the correct line voltage.
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FAQ ID # 74
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