5.3 Safe Disable Input
128 YASKAWA SIEPYEULA5001C LA500 Technical Manual
Figure 5.14 Connection Example to Use the Internal Power Supply
■ To Use 24 V External Power Supply
Figure 5.15 shows an example of how to connect Safe Disable contacts. 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
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