BENSHAW Rsi S Series, Инструкция по эксплуатации

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214
Learning Protection Features
Code Description
This provides extended operation at low speeds. Motors
designed for inverters typically have this design.
Pr.42 ETH 1 min Sets the amount of current that when continuously supplied to the motor for 1
minute, an ETH fault will occur. Percentage is based on the motor-rated current
(bA.13).
Pr.43 ETH Cont Sets the amount of continuous current that will not activate the ETH function. The
range below details the set values that can be used during continuous operation
without the protection function.
Overload Early Warning and Trip
Overload warning level and time, Trip level and time can be programmed separately. A warning or
trip occurs when the motor reaches the levels and times set in the following parameters. The levels
are based on the motor’s rated current. The multi-function outputs (Relay1 and/or Q1) can be
activated when set to (5) Overload.
100
95
65
20 60
Pr.41=0
Pr.41=1
Continuous
rated current (%)
Frequency (Hz)
Pr.42
Pr.43
60
Current
ETH trip time (seconds)