7
YASKAWA AC Drive
CR700
Catalog
｜
KAEP C
710617
24
｜
YASKAWA
Preventive maintenance can be carried out at the optimum time with protection
functions for drives and an understanding of the timing for the replacement of crane
parts.
Improved Maintenance Services
Alarm
Display
Corresponding
Component
LT-
1
Cooling fan
LT-
2
Capacitors
LT-
3
Inrush prevention relay
LT-
1
Time to replace
the cooling fan.
!
■
CR
700 outputs the alarm signal to the PLC controller
Crane Maintenance Monitor
The monitor keeps a count of the number of brake
commands. This information is helpful in determining
brake maintenance schedules for inspecting system and
replacing parts.
Performance Life Monitors
With performance life monitors, the approximate maintenance
period of parts can be output as an alarm signal to notify users
in advance.
In addition, you can monitor the deterioration status of the
parts which can help you to make a maintenance plan easier.
Overload Detection Function
The drive restricts the operation of the crane (elevator) when the load exceeds a predetermined
upper limit value. The drive can be configured to display alarms and stop crane operation to
prevent operation with an overload that could lead to a dangerous situation.
Overtorque Detection Function
Detects an increased torque value when a load comes into contact with an object.
The drive stops the motor automatically to prevent machine malfunctions and increase safety.
Heavy
Car
go
Traverse
STOP!
STOP!
