If the fuse is blown, the switch will trip and the status will be registered by the APC2.
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| Illustration 1 | g01280695 |
Inverter Cabinet - Left View (2) DC Bus (5) Upper Left Panel (6) Heat Sink (7) Current Transformer (8) Lower Fan Plenum (9) Fan x5 (10) Lower Left Panel (11) Inverter Assembly x6 | |
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| Illustration 2 | g01280710 |
Inverter Cabinet Upper Left Panel - Version 1 Hardware, Five Fuses (12) Neutral Bus Fuses (13) Thermistor (14) 3-Phase Diode Rectifier | |
The Neutral Bus Fuses (12) are located on the Upper Left Panel (5) in the Inverter Cabinet. Refer to Illustration 1 and Illustration 2 for fuse locations.
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| Illustration 3 | g01281088 |
Inverter Assembly Fuses | |
Each inverter module contains two fuses. One of the fuses is for the input side of the inverter. One of the fuses is for the output side of the inverter. Refer to Illustration 3 for the location of the Inverter fuses in the Inverter Cabinet.
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| Illustration 4 | g01281183 |
Fuse Switch Location (Inverter 1) (20) Fuse Switch (-) (21) Fuse Switch (+) | |
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| Illustration 5 | g01406795 |
Fuse Switch Location (Inverter 2) (22) Fuse Switch (+) (23) Fuse Switch (-) | |
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| Illustration 6 | g01281184 |
Neutral Bus Fuse Switch Location (24) Fuse Switch (Neutral) (25) Screw | |
Refer to Illustration 4 and Illustration 6 for Fuse Switch locations in the cabinet.
Removal
- Perform steps in the Systems Operation, Testing and Adjusting, "Internal Component Preremoval Steps (Inverter Cabinet)" in order to de-energize the system and gain access to internal components.
- Remove the wires from the switch. The wires locations are labeled. Verify the labeling.
- Remove the two cross head screws that connect the switch to the fuse.
Installation
- Attach the switch to the fuse with two cross head screws.
The Neutral Bus fuse switch connectors face the rear of the cabinet and the inverter fuses switch connectors face the top of the cabinet.
- Attach the wires to the switch.
Refer to Illustration 7 for switch wire connections.
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| Illustration 7 | g01281186 |
Inverter Cabinet Fuse Switch Wire Connections | |