Installation
Input Power Conditioning
The drive is suitable for direct connection to input power within the rated voltage of the drive. Listed in Table 9 are certain input power conditions which may cause component damage or reduction in product life. If any of the conditions exist, as described in Table 9, install one of the devices listed under the heading Corrective Action on the line side of the drive.
IMPORTANT: Only one device per branch circuit is required. It should be mounted closest to the branch and sized to handle the total current of the branch circuit.
Input Power Condition |
| Corrective Action | |
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Low Line impedance (less than 1% line reactance) | ∙ | Install Line Reactor | |
| ∙ | or Isolation Transformer | |
Greater than 120 kVA supply transformer | |||
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Line has power factor correction capacitors | ∙ | Install Line Reactor | |
| ∙ | or Isolation Transformer | |
Line has frequent power interruptions | |||
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Line has intermittent noise spikes in excess of 6000V (lightning) |
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Phase to ground voltage exceeds 125% of normal line to line voltage | ∙ | Remove MOV jumper to ground. | |
| ∙ or Install Isolation Transformer with grounded | ||
Ungrounded distribution system | |||
| secondary if necessary | ||
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240V open delta configuration (stinger leg)* | ∙ | Install Line Reactor | |
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*For drives applied on an open delta with a middle phase grounded neutral system, the phase opposite the phase that is tapped in the middle to the neutral or earth is referred to as the “stinger leg,” “high leg,” “red leg,” etc. This leg should be identified throughout the system with red or orange tape on the wire at each connection point. The stinger leg should be connected to the center Phase B on the reactor.
Table 9
44 | © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT | F8208301 |