ABB UNO-DM-2.0-TL-PLUS Manual page 167

10. Voltage absence test on DC side
Before to approach the below operations all the steps from1 to 9 included must be successfully
completed.
Using the voltage detector, check the absence of voltage on the DC
terminal connectors
• Each positive input and ground
• Each negative input and ground
• Positive input and negative input of each input section of the inverter.
11. Voltage absence test on AC side
Using the voltage detector, check the absence of voltage on the AC
terminal connectors (lift the protective sheet to reach the connectors)
between:
• Phase to ground
• Neutral to ground
• Phase to neutral.
between:
12
12
-IN1 -IN1 +IN1 +IN1
N L
AC OUTPUTS
- 167 -
8 - Maintenance
-IN2 -IN2 +IN2 +IN2
DC INPUTS