Printed Circuit Board Replacement Procedure (Nxgpro Or Nxgpro+) - Siemens SINAMICS PERFECT HARMONY GH180 Operating Instructions Manual

3. Use an appropriately sized AC voltage detector to ensure that the power is removed.
4. Use the appropriate tools to remove the bolts holding the power cable to the fuse mounting
feet.
Note
All cells will have an M8 bolt.
5. Remove the open fuse and replace with a spare Cell Input Power Fuse.
6. Re-apply the power cable connections and apply a new torque mark to the bolt.
Note
Torque the M8 bolt connections to 70 IN-LB (7.9 N-M).
10.7.12

Printed Circuit Board Replacement Procedure (NXGpro or NXGpro+)

Use Replacing the Printed Circuit Board procedure to replace:
• System Interface Board
• User I/O Board
Replacing the Printed Circuit Board
1. Power down the system, following the standard shut-down procedure.
2. Power down all low voltage feeds (24 V-600 V) to the drive.
Note
Low voltage feeds vary per customer design. The customer specific documentation shall be
referenced to identify all low voltage feeds.
3. Use an appropriately sized AC voltage detector to ensure all power is removed to the control.
Note
The drive can accommodate up to a 240 VAC power for the control.
Type 6SR5 Air-Cooled
Operating Instructions, AK, A5E39390112
WARNING
Electrical Hazard
The secondary rating of a SINAMICS GH180 Perfect Harmony™ transformer to the input of
the cell power fuse is 750 V
precautions. Risk of death, serious personal injury, and equipment damage can occur.
or 450 V . Qualified personnel must obey all safety
ac ac
Maintenance
10.7 Remove and Replace
97