Mandatory Circuit Protection; Parameter Set-Up - ABB ACS150 User Manual

Mandatory circuit protection

The following setup is essential for safety – it interrupts the main supply in fault
situations involving chopper shorts:
• Equip the drive with a main contactor.
• Wire the contactor so that it opens if the resistor thermal switch opens (an
overheated resistor opens the contactor).
Below is a simple wiring diagram example.
Fuses
ACS150

Parameter set-up

To enable resistor braking, switch off the drive's overvoltage control by setting
parameter 2005
L1 L2 L3
1 3 5
K1
2 4 6
U1 V1 W1
to 0 (DISABLE).
Thermal switch of the resistor
Q
127
Technical data