4
YASKAWA
｜
YASKAWA AC Drive
CR700
Catalog
｜
KAEP C
710617
24
Yaskawa has further improved the key functions for stable operations in our crane
sequence that has won the trust of our customers for over
30
years.
Reliable Crane Sequence
Brake Sequence
The break release command is judged and output in relation to the operation
frequency of the drive, output current, and amount of torque.
Brakes are released and applied while ensuring enough torque to maintain
the load during starts and stops to prevent load rollback.
Contact Positioning Function
When the Stop command is valid while a contact position
command is in effect for applications, such as transport
lines, the drive detects collision and stops operating if
the torque reference or output current are higher than the
standard value.
Quick positioning can be performed using this contact
positioning function.
Travel Limit Function
The limit sensor set in the allowable movement range
prevents over-traveling and overwinding.
Run Command Adjustment Function
Reliable movement during inching. Our system prevents
excessive current from flowing during lifting operations
performed immediately after lowering operations.
Note: This is only enabled when ramp to stop mode is selected.
Do not use this function with machines such as trucks with wheels
that may spin freely when there is a crash because the motor will not
be constrained, and the torque reference or output current will not
increase.
Stops at the
sensor position
Stops at the
sensor position
No load rollbacks
Maintain torque
CR
700
Brake is
released
Monitors operation frequency,
output current, and torque
