YASKAWA GA50U Series

18 Safe Disable Input
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 191
Figure 18.3 Connection Example to Use the Internal Power Supply
To Use 24 V External Power Supply
An example of connecting Safe Disable contacts is shown in Figure 18.4. These conditions limit
the number of units to connect:
• External power supply capacity
• Number of MFDIs used
• Supply current to the external sensors
HC
Drive 1
SN
H1
H2
E(G)
HC
Drive 2
SN
H1
H2
E(G)
HC
Drive 3
SN
H1
H2
E(G)
S1
S2
Open
Safety switch
Safety
controller
Reset/
feedback
input
Safety Electronic
Device Monitor output
Connect MFDO terminals set to
Safe Torque OFF [H2 - xx = 21] in series.
Safe Disable input