Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual - Manual (Page 27)

Jumpers and Switches
ATTENTION: Only qualified electrical personnel
familiar with the construction and operation of this
equipment and the hazards involved should set
jumpers and switches. Read and understand this
manual in its entirety before proceeding. Failure to
observe this precaution could result in severe bodily
injury or loss of life.
ATTENTION: Do not press the reset button switch
(SW6) during operation. Also, do not alter the setting
of any jumpers and switches during operation.
Failure to observe this precaution could result in
destruction of the equipment, severe bodily injury or
loss of life.
ATTENTION: Do not alter the settings of any
jumpers not described in this manual. Failure to
observe this precaution could result in damage to, or
destruction of, the equipment.
The jumpers JP1 to JP3 and the switches SW6 and SW7 are set
before shipment from factory. If you need to change the jumpers
and/or switch settings, read and understand the following
description of these jumpers and switches before proceeding.
• Jumper JP1 to Enable Operation
Short this jumper to start switching operation of transistors of
the 8720MC-RPS Regenerative Power Supply when the RUN
sequence input is enabled. This jumper should always be kept
closed.
• Jumper JP2 to Enable Inspection Mode
Keep this jumper open always.
• Reset Switch SW6
Pressing this switch resets the CPU.
Important: Do not press the reset switch SW6 during operation.
• Switch SW7 to Enable Base Block
This switch is used to stop switching of transistors that produce
PWM waveform by interrupting the base signal from the Power
Modules. To interrupt the base signal, turn the switch to the
OFF side.
As shown in the figure below, SW7 consists of four switches,
and SW7-1 to SW7-3 can be allocated to the master unit and
slave units 1 and 2. In the case of a master with paralleled slave
units, it is possible to interrupt the base signal of each unit by
turning the corresponding switch to the OFF side. SW7-4 must
always be kept to the OFF side.
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2-15 About 8720MC-RPS Regenerative Power Supply