Remove Power from the System for Frames 5 and 6
This procedure must be completed before you attempt to service any part of the drive.
ATTENTION:
Risk of injury or equipment damage exists.
Remove power before you remove or make cable connections. When you remove or insert a cable connector with power applied, an electric arc can occur. An electric arc can cause personal injury or property damage in the following ways:
- An electric arc can send an erroneous signal to system field devices, which can cause unintended machine motion
- An electric arc can cause an explosion in a hazardous environment
Electric arcs cause excessive wear to contacts on both the module and its receiving connector. Worn contacts can create electrical resistance.
Follow these steps to remove power from the drive.
- Turn off and lock out all input power, including any external power sources.
- Wait 15 minutes.
- If present, remove the conduit box cover from the drive.
- Measure the AC input and DC bus voltage to verify that there is no voltage present:
- Measure the AC input terminals R/L1, S/L2, and T/L3; L to L and L to chassis GND (PE).
- Measure the DC output terminals; DC+ to DC–, DC+ to chassis GND (PE), and DC– to chassis GND (PE).
Frame 5 Power Terminal Identification
Frame 6 Power Terminal Identification
Item | Name | Description |
|---|---|---|
A | PE grounding stud | Termination point to chassis ground for AC line shield |
B | R/L1, S/L2, T/L3 | AC line input power terminals |
C | DC+, DC– | DC bus terminals |
D | U/T1, V/T2, W/T3 | AC output motor terminals |
E | PE grounding stud | Termination point to chassis ground for motor shield |
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