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Rockwell Automation Publication 20Y-UM001F-EN-P - April 2017
89
Startup
Chapter 3
The precharging of the units starts when input power is present.
When the DC bus voltage reaches its nominal value, the contactor
closes.
To stop the AFE, turn the OFF-ON-START switch to OFF.
2.
MAN
– Manual operation by the OFF-ON-START switch on the
enclosure door.
a. Set the REM-AUTO-MAN switch to MAN.
b. Turn the OFF-ON-START switch to START and let it
automatically return to ON.
The precharging takes about 5…10 seconds depending on the
connected DC bus capacitance. When the DC bus voltage has
reached its nominal value, the AFE control closes the contactor.
The precharging can be aborted by turning the switch to OFF.
To stop the AFE, turn the OFF-ON-START switch to OFF.
3.
REM
– Remote operation with signals to the control terminals.
a. Set the REM-AUTO-MAN switch to REM.
b. Connect a normally closed (NC) contact to terminals X3:58 and
X3:61.
This contact has to be in the NC-state for the AFE to precharge and
run. A remote pulse of 0.4…1.0 seconds duration, connected to
terminals X3:57 and X3:60, starts the precharging of the AFE. When
the DC voltage has reached its nominal value, the AFE unit
automatically closes the input contactor.
To stop the AFE, turn the OFF-ON-START switch to OFF.
IMPORTANT
Pressing the
(Stop) key on the HIM only stops the AFE output
– it does not open the input contactor to stop the AFE.
When a voltage drop or a blackout occurs in the supplying network,
the unit precharges automatically and closes the input contactor
when the main supply voltage returns.
IMPORTANT
Pressing the
(Stop) key on the HIM only stops the AFE
output—it does not open the input contactor to stop the AFE.
When a voltage drop or a blackout occurs in the supplying network,
the input contactor opens. To turn on the AFE, turn the OFF-ON-
START switch to START and let it automatically return to ON.
IMPORTANT
Pressing the
(Stop) key on the HIM only stops the AFE
output—it does not open the input contactor to stop the AFE.
When a voltage drop or a blackout occurs in the supplying network,
the input contactor opens. When the supply is restored, the
precharging must be reinitiated. To turn on the AFE, turn the OFF-
ON-START switch to START and let it automatically return to ON.
Summary of Contents for Allen-Bradley PowerFlex 700AFE
Page 8: ...8 Rockwell Automation Publication 20Y UM001F EN P April 2017 Table of Contents Notes ...
Page 164: ...164 Rockwell Automation Publication 20Y UM001F EN P April 2017 Appendix B HIM Overview Notes ...
Page 184: ...184 Rockwell Automation Publication 20Y UM001F EN P April 2017 Index Notes ...
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