90 Program features
Limitations
• The external stop or slow down signals (in either direction) must not be on when
the Limit to limit function is activated for the first time. If that is not possible,
change the state manually to match the actual status in the Limit to limit state
parameter (76.01).
• When drive is stopped, the load must not be moved with external force (the drive
cannot monitor direction). If this happens, the Limit to limit state can be manually
changed to the correct one in parameter Limit to limit state parameter (76.01).
• Coast stop without mechanical brake may cause load moving without Limit to limit
control (drive is not controlling load movement). If this happens, the Limit to limit
state can be manually changed to the correct one in parameter Limit to limit state
parameter (76.01).
• When Limit to limit control is in Pulse mode then the state is saved over power
cycle. The load must not be moved when the drive is powered off. If this happens,
then Limit to limit state can be manually changed to the correct one in parameter
Limit to limit state parameter (76.01).
Tips
• You can connect Slow down and Stop signals into the same signal source by
setting the Stop limit and Slow down parameters to the same digital input (76.01
Forward stop limit = DI2 and 76.05 Forward slow down limit = DI2).
• You can change the Limit to limit state machine state with the parameter Limit to
limit state parameter (76.01), in case of maintenance.
Parameters
Parameters: 76.01 Limit to limit control status, 76.02 Limit to limit enable, 76.03 Limit
to limit control mode, 76.04 Forward stop limit, 76.05 Forward slow down limit, 76.06
Reverse stop limit, 76.07 Reverse slow down limit, 76.08 Slow down speed, 76.09
Slow down frequency.
To Next Page
Loading...
