8
Control modes
Control and reference channels
The control and the reference may originate from different channels:
- the terminal block
- the built-in keypad
- the remote display terminal
- Modbus
- CANopen, DeviceNet, Profibus
These channels are managed:
- either in priority mode,
- or in deterministic mode.
The "Function access level (LAC)" and "Mixed mode (CHCF)" parameters are used to select the run mode.
Operation is described in detail in the Programming Manual ("Control menu" section).
Priority stops
In line mode, stop requests which can be activated by the terminals or by the remote display terminal have priority:
Type of stop
From
Drivecom state
reached
Actions for restoring control of the ER23 using the fieldbus
Fast stop
LI2 to LI6
"Operation enabled"
- Set the logic input assigned to the "fast stop" function to 1
(active at 0)
DC injection stop
LI2 to LI6
"Operation enabled"
- Set the logic input assigned to the "injection stop" function to 0
(active at 1)
Freewheel stop
LI2 to LI6
"Switch on disabled"
- Set the logic input assigned to the "freewheel stop" function to 1
(active at 0)
- Perform the transitions required to return the drive to "run" status
3-wire control stop via
STOP logic input (LI1)
LI1
(3-wire control)
"Switch on disabled"
- Set the logic input assigned to STOP to 1 (active at 0)
- Perform the transitions required to return the drive to "run" status
Stop by the display terminal STOP key
"Switch on disabled"
- Release the Stop key
- Perform the transitions required to return the drive to "run" status