E6581697
F-45
6
[Parameter setting]
Title Function Setting
f304 Dynamic braking selection 1
f305
Overvoltage limit operation 1
f308
Dynamic braking resistance Proper value
f309
Dynamic braking resistor capacity Proper value
f626 Over-voltage stall protection level
136 (%) (240V class)
141 (%) (500V class)
, To use this inverter in applications that create a continuously regenerative status (such as downward
movement of a lift, a press or a tension control machine), or in applications that require deceleration
stopping of a machine with a significant load inertial moment, increase the dynamic braking resistor
capacity according to the operation rate required.
, To connect an external dynamic braking resistor, select one with a resultant resistance value greater than
the minimum allowable resistance value. Be sure to set the appropriate operation rate in
f308 and
f309 to ensure overload protection.
, When using a braking resistor with no thermal fuse, connect and use a thermal relay as a control circuit for
cutting power off.
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