Rockwell Automation Energy Management Accelerator Toolkit Quick Start - Manual (Page 260)

260 Rockwell Automation Publication IASIMP-QS016C-EN-P - October 2014
Chapter 11 FactoryTalk View ME Energy Faceplates
ATTENTION: If an Xxxx.Cmd_ProgToOperPermissive tag is set to 1, the associated AOI is programmed to allow a transfer from
Program Control to Operator Control regardless of the current direction, speed, or active status of the PowerFlex drive. In addition,
the AOI is programmed to transfer the current Program Speed value ‘Xxxx.Set_SpeedProg’ to the associated Operator Speed tag,
‘Xxxx.Set_SpeedOper’, creating a ‘bumpless’ transfer when a transfer from Program Control to Operator Control is executed.
Therefore, if the PowerFlex drive is running at the time of a Program to Operator Control transition, the PowerFlex drive continues to
run at the most recent commanded Program Speed. If a different Program to Operator Control transition is desired, then the status
of the PowerFlex drive and the Operator command requests must be monitored and the appropriate Program commands must be
issued before the Xxxx.Cmd_ProgToOperPermissive is allowed. Therefore, it is very important that the status of the PowerFlex drive
is monitored and appropriate Program commands, for the specific application, are issued before the
Xxxx.Cmd_ProgToOperPermissive tag is set, to insure a safe Program to Operator Control transfer.
ATTENTION: If an Xxxx.Cmd_OperToProgramPermissive tag is set to 1, the associated AOI is programmed to allow a transfer from
Operator Control to Program Control regardless of the current direction, speed, or active status of the PowerFlex Drive. In addition,
there is no logic within the AOI that sets the ‘Set_SpeedProg’ upon transfer to Program mode, so the PowerFlex drive assumes the
last commanded ‘Set_SpeedProg’ speed value unless logic is programmed outside of the AOI to set it to a different value.
Therefore, it is very important that the status of the PowerFlex Drive is monitored and appropriate Program commands, for the
specific application, are issued before the Xxxx.Cmd_OperToProgramPermissive tag is set, to insure a safe Operator to Program
Control transfer.
ATTENTION: If The PowerFlex drive is started in Operator Mode and the RSView ME PowerFlex faceplate is closed while the
PowerFlex drive is running, the PowerFlex drive continues running at the current Set_SpeedOper tag value. Therefore, it is very
important to understand how this operation affects the specific application and appropriate actions and safeguards are
implemented.
ATTENTION: There is no logic in the AOI that controls the minimum or maximum PowerFlex Commanded Speed values sent to the
specific drive. Therefore, it is very important to understand the limitations of the motor connected to the specific drive and set the
appropriate PowerFlex drive parameters and add additional Program logic if necessary.