YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
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Connect Safe Disable Input Contacts to Multiple Drives
To Use the Drive Internal Power Supply
shows an example of how to connect Safe Disable contacts.
From the terminals HC-SN of drive 1, supply the power for the Safe Disable function for
the applicable drives. These conditions limit the number of units to connect:
•
Internal power supply capacity
•
Number of MFDIs used
•
Supply current to the external sensors
Figure 20.3 Connection Example to Use the Internal Power Supply
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