Yaskawa G5HHP Drive - Manual (Page 231)

7.5 Common Functions
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Up and Down Commands (Settings: 10 and 11)
Up command ON OFF ON OFF
Down command OFF ON ON OFF
Operation Acceleration Deceleration Hold Hold
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With these settings, the multi-function inputs can be used to control the Inverter’s output frequency.
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When using this function, be sure to set both the up command (setting 10) and the down command (set-
ting 11) for 2 multi-function inputs. An OPE03 option fault will occur if only one of these commands
is set or if an acceleration/deceleration ramp hold input (setting A) is set at the same time.
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Be sure to set constant b1-02 (the run command source selector) to 1 (external terminal). The up/down
function won’t operate with any other b1-02 setting.
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The frequency up/down commands operate according to the normal acceleration/deceleration times in
C1-01 to C1-08.
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The upper and lower limits for the output frequency with the up/down commands are determined by the
following settings:
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Upper limit = Maximum output frequency (E1-04) X Reference upper limit (d2-01) / 100
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Lower limit = Maximum output frequency (E1-04) X Reference lower limit (d2-02) / 100
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When frequency reference (voltage) terminal 36 or frequency reference (current) terminal 39 is being
used as a frequency reference input, the greatest frequency value becomes the lower limit.
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When the up/down function is being used, the output frequency will be accelerated to the lower limit
if a run command is input.
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When the up/down function and jog frequency reference are both assigned to multi-function inputs, an
ON jog frequency reference input has the highest priority.
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Multi-step speed references 1 to 8 are all disabled when the up/down function has been set.
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The output frequency held by the up/down function will be stored in memory if d4-01 (the frequency
reference hold function selector) is set to 1. This output frequency will be retained even after a power
loss, and operation will be restarted at this frequency the next time that a run command is input. The
stored output frequency will be cleared from memory if the up or down command is turned ON while
the run command is OFF (see “Reference frequency reset” in Figure 7.32) .
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