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Rexroth Frequency Converter EFC x610
Series
When frequency source combination function is selected (either addition or
●
subtraction), the H8.06 / H8.31 'EAI input polarity setting' will be limited to '1'
or '0', and the combination result will always be limited to 0.00...[E0.09] Hz.
When frequency combination is selected (addition / subtraction), then if po-
larity with direction control is already enabled (H8.06 / H8.31 = 2) 'PrSE' will
be displayed.
When [H8.05] = '5: -10...10 V' and [H8.06] / [H8.31] = '2: Polarity ac-
tive with direction control', the priority of direction command from
EAI1 / EAI2 is
higher than the direction command from communication or digital
●
inputs
lower than the direction command from simple PLC or Multi-
●
Speed
Dead zone filter for external analog input -10 ...+10 V
Fig. 12-160: Dead zone filter for external analog input
If [H8.05] / [H8.30] = 5, parameter H8.07 / H8.38 can be used to define the for-
ward and reverse rotation dead zone of the motor, i.e. the range for treating in-
put signals as zero, as shown in the above figure. For example, if [H8.07] /
[H8.38] = 10.0 % when [H8.05] / [H8.30] = 5, analog input signals within the
range of -1...1 V will be treated as zero, 1...10 V corresponds to 0 Hz to maxi-
mum frequency, -1...-10 V corresponds to 0 Hz to minus maximum frequency.
The dead zone range is -1...+1 V in this case.
Dead zone filter will be active only for -10...+10 V mode when polarity control for
that channel is enabled. i.e., when H8.05 / H8.30 = 5 and H8.06 / H8.31 = 1 or 2.
And when dead zone filter is active, curve mode configurations will be inactive.
IO & IO plus card analog input status are monitored by parameter
d0.33 'I/O card EAI1 input' or d0.34 'I/O card EAI2 input'.
Functions and Parameters
R912005854_Edition 09 Bosch Rexroth AG
445/653
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