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Technical data
(modified 2004-03)
Frequency function
Rated frequency 30.00...65.00 Hz
Measuring range 20.00...75.00 Hz
Setting range 25.00...70.00 Hz
Number of cycles to be used for frequency measurement 3...20 cycles
Operation accuracy ±10 mHz
Minimum voltage to be measured 0.25 x U
n
Rate of change of frequency function
Setting range 0.2...10.0 Hz/s
Operation accuracy ±150 mHz/s
Timer function
Setting range *) 0.1...300.0 s
Operate time accuracy ±1% or ±30 ms
Undervoltage blocking
Measuring range 0...1.40 x U
n
Setting range 0,30...0.90 x U
n
Operation accuracy (in the range 25...70 Hz) ±3% of setting value
Recovery function
Setting range (max. deviation from rated frequency) 0.1...10.0 Hz
Operate time 1 s...120 min 59 s
Operate time accuracy ±1% or ±30 ms
*) The minimum operate time depends on the rated frequency and the number of cycles to be
used in the frequency measurement. See frequency measurement in "Description of operation".
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