Delta VFD-ED Series

Chapter 16 Safe Torque Off Function | VFD-ED
16-5
16-3-2 Internal Safety Circuit Terminals
The part D in Figure 16-2 below shows the default for terminals +24V-STO1-STO2 and terminals
SCM1-SCM2-DCM in the drive’s internal safety circuit, which are short-circuited when they are
delivered from the factory.
Figure 16-2
Figure 16-3
+24V
STO1
SCM1
STO2
SCM2
COM
V+
C2000
CPU
Line
drive
Ga te
d rive
M
S
S
VFD-ED
DCM