When braking load at deceleration is a constant speed
How to apply a braking load Allowable average loss
Thermal braking resistance
value
Braking time (s) × Motor capacity (kW)
Electronic Thermal for Braking
Resistor Discharging Ca
pacity
(F50) =
× Motor capacity (kW)
%ED(%)
100
Electronic Thermal for Braking
Resistor Allowable Avera
ge
Loss (F51) =
Additional Information
• When a braking resistor capable of outputting a temperature detection signal is applied, set
“9: EXT (external trip)” to one of Input Terminal [DI1] Function Selection to Input Terminal
[DI7] Function Selection (E50 to E55, E98, E99), and connect the temperature detection sig-
nal of the braking resistor
.
• Even if there is actually little temperature rise, the electronic thermal sometimes is activated
and the overheating protection dbH alarm is generated depending on the braking resistor
specifications. Check the specifications of the braking resistor and set its parameter.
5 Basic Settings
5-76
M1 Series Standard Type User's Manual (I669)
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