Replacing The Door-Mounted Keypad; Removing The Power Cell Procedure - Siemens SINAMICS PERFECT HARMONY GH180 Operating Instructions Manual

Maintenance
10.6 Remove and Replace
10.6.4

Replacing the Door-Mounted Keypad

To replace the door-mounted keypad:
1. Switch off the main circuit breaker.
2. Open the cabinet.
3. Disconnect the power and communications connection and the 9-pin connector from the
keypad.
4. Unscrew the seven mounting screws.
5. Pull the keypad out to the front.
6. Fit a new keypad.
7. Screw in the seven mounting screws.
8. Reconnect the power and communications connection and the 9-pin connector from the
keypad.
10.6.5

Removing the Power Cell Procedure

Power Cell Removal
● Refer to the "
prior to removing power cells. Be sure to obey all standard electrical and safety instructions.
● Use appropriate Personal Protective Equipment (PPE). Be sure not to touch any bare bus
bars while removing the power cell.
88
VFD Power Down and Door Access " chapter, section " Unlocking the Doors ",
DANGER
Lethal Voltages
Even when the system is powered down, power may still be present at the power cell's
DC bus. The recommended waiting time before opening the doors or removing covers is
10 minutes.
DANGER
Lethal Voltages
The cell should not be touched, removed, or serviced if the indicator is illuminated.The
cell chassis is not grounded and when energized can float to lethal voltages. Failure to
install proper grounding connections may result in death or cause damage to the drive.
CAUTION
Existing Voltage May Still Be Present
An LED that is not extinguished indicates that power is present.
The power cells include discharge resistors to dissipate stored energy after the input
voltage is removed. The power cell DC bus voltage decays to less than 50 VDC in less
than 10 minutes
Operating Instructions, 07/2018, A5E42736645A_AB
Air Cooled 6SR5