YASKAWA SGM-A3 User Manual page 376

SERVO SELECTION AND DATA SHEETS
5.6.4 Brake Power Supply cont.
5
364
2) The internal circuits are shown below. While it is possible to switch either the AC or DC
side of the brake power supply, it is normally safer to switch the AC side. If the DC side is
to be switched, install a surge suppressor near the brake coil to prevent the surge volt-
ages due to switching the DC side damaging the brake coil.
• Internal Circuit for 200 VAC Input (LPSE-2H01)
Yellow
AC Side
White
• Internal Circuit for 100 VAC Input (LPDE-1H01)
AC Side
Diode
Diode Bridge
Blue
Surge
Sup-
pres-
sor
White
Red
Surge
DC (Brake) Side
Sup-
pressor
Black
Red
DC (Brake) Side
Surge
Killer
Black