Nidec E300 Series - Page 237

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Diagnostics Optimization CT MODBUS RTU Technical Data
Installation and System Design Guide 237
Issue Number: 1
Figure 8-22 Low voltage DC operation active
Figure 8-23 AC supply with automatic transition to Low voltage DC operation
Low Voltage DC
Power Supply
0
1
Ext 24 Vdc to control PCB(frame 3 - 11)
Ext 24 Vdc to power stage(frame 7 - 11)
Ext 24 Vdc to heatsink fans(frame 9 - 11)
Ext 24 Vdc supplement drive internal24Vdc (frame 3 - 11)
0
1
Std Under Voltage Threshold
Low Under Voltage Threshold
User Supply Select
Low Under Voltage
Threshold Select
Under Voltage
Active Supply
DC Bus Voltage
O09
J65
L19
O10
O13
O11
O14
Standard AC
Power Supply
0
1
0
1
Std Under Voltage Threshold
Low Under Voltage Threshold
Low Under Voltage
Threshold Select
Low Voltage DC
Power Supply
0
1
Disabled
Under Voltage System
Contactor Output
Under Voltage System
Contactor Closed Feedback
AC / DC Contactor control feedback
AC / DC Contactor control output
· Drive frame sizes3 to 6 AC supply
contactor
· Drive frame sizes7 and larger DC
supply soft start contactor
Ext 24 Vdc to control PCB(frame 3 - 11)
Ext 24 Vdc to power stage(frame 7 - 11)
Ext 24 Vdc to heatsink fans(frame 9 - 11)
Ext 24 Vdc supplement drive internal
24 Vdc (frame 3 - 11)
Low voltage DC
mode enable
Safe Torque Off , Drive Enable
Low Under Voltage
Threshold Select
DC mode under
voltage control+
contactor control
User Supply Select
Under Voltage
Active Supply
DC Bus Voltage
O09
O11
L19
O10
O14
J65
O15
O16
O12