68
KATANA S610M Inverter Specialized for Elevator Manual
Function Code
Name
Setting Range
Factory Default
Value
F11.03
Auto current-limit level
20.0%
～
200.0
％（
Ie
）
180.0
F11.04
Frequency decrease rate during current
limiting (reserved)
0.00
～
99.99Hz/s
10.00
F11.05
Auto current-limit action selection
(reserved)
0
～
1
1
By real-time control over the load current, it is automatically set that the current does not exceed the set
auto current limit level (F11.03) to avoid tripping caused by current overshoot. This function is particularly
applicable to larger load inertia or abrupt load change.
Auto current-limit level (F11.03) defines current threshold of auto current-limit action, as a percentage of
rated current of the inverter.
Frequency decrease rate during current limiting (F11.04) defines the adjustment rate of output frequency
when auto current limit acts.
When auto current limit acts, if the frequency decrease rate (F11.04) is too small, auto current limit
cannot be avoided, thus eventually causing overload; if the rate (F11.04) is too large, frequency adjustment
would be aggravated, so that the inverter might be in power generating state for a long time which leads to
overvoltage protection.
Auto current limit function is valid under both acceleration and deceleration states. Whether auto current
limit works during constant operation is determined by auto current-limit action selection (F11.07).
When F11.07 = 0, it means the function is invalid during constant operation.
When F11.07 = 1, it means the function is valid during constant operation.
When auto current limit acts, output frequency may vary, therefore, this function is not applicable to
where stable output frequency during constant operation is required.
When auto current limit is valid, overload capacity of the inverter may be affected by lower set value of
the current-limit level.
F11.06
Reserved
F11.07
Selection of dynamic braking
0
～
1
1
0: not using dynamic braking 1: using dynamic braking
F11.08
Usage rate of dynamic braking
0.0
～
100.0
％
100.0
％
Only valid for the model with a built-in brake unit.
Attentions
：
The resistance value and power of the brake resistor should be considered when
setting this function.
