Switch-Off Procedure - ABB PVS-100 Product Manual

S
witch-off procedure
1. Preliminary checks
• PPE Check: Verify the integrity of the PPE that is going to be used
to perform the operations.
• Equipment check: Check the voltage tester is working correctly.
2. Wear the appropriate PPE for carrying out the operations (overall
resistant to electric arc, dielectric helmet with visor, insulating
gloves). All the following activities (till the completion of the
procedure) must be performed wearing the PPE.
3. Check the absence of dangerous voltages on inverter chassis
respect ground:
• Check the absence of dangerous voltage on the inverter chassis.
The measurement point are between inverter chassis (both power
module
inverter.
4. Operations on External AC source
• Disconnect any AC external sources.
• Affix designated lock preventing operation onto any external AC
disconnect device, affixing designated tags.
• Check on the status LEDs
carried out: Missing Grid: Power LED (Green) Flashing – Alarm
LED (Yellow) on (solid).
5. Operations on External DC source
Note: In case of absence of External DC disconnect device go on the
section (Operations on internal DC Switch)
• Disconnect any DC external sources
• Affix designated lock preventing operation onto any external DC
disconnect device, affixing designated tags.
• Check on the status LEDs
carried out: Missing DC voltage: All LEDs OFF.
6. Operations on internal AC disconnect Switch
Note: This operation can be done only in case of wiring box
SY2 model. The wiring box
switch
• Open the main AC disconnect switch
and wiring box
01
SX or SY model doesn't include the AC
02
.
09
- 139 -
7 - Operation
) and a ground point outside the
02
the shutdown command has been
08
the shutdown command has been
08
(if present)
09
09 .
SX2 or
02