ABB ACS580-01 - Limiting Relay Output Maximum Voltages at High Installation Altitudes

86 Planning the electrical installation
Limiting relay output maximum voltages at high installation
altitudes
See sections Isolation areas, R1…R5 on page 188 and Isolation areas, R6…R9 on
page 189.
1 Relay outputs
2Varistor
3 RC filter
4Diode
1
2
3
230 V AC
+ 24 V DC
4
230 V AC