Hitachi SJ Series, User Manual

Page: 427 / 786

12-22-4
Chapter 12 Inverter Function
12.22.2 Detecting break and out-of-range
errors at expansion option terminals
• I want to detect break errors at analog inputs when
an expansion option is used.
• I want to maintain a constant speed even when a
break or short-circuit error occurs.
• Assign the output terminal functions 053 [Ai4Dc],
054 [Ai5Dc], and 055 [Ai6Dc] analog break signals
to one of [CC-01] to [CC-17] that corresponds to
the output terminal and output the signals.
• The signals will be output when the input values of
the analog inputs [Ai4] (Vi4,Ii4), [Ai5] (Vi5,Ii5), and
[Ai6] (Vi6,Ii6) are within the range from the lower
limit level to the upper limit level of the window
comparators. The analog inputs can be monitored
at any value, so that this function can be used for
detecting breaks, for example.
Parameter
• When the signal [WCAi4], [WCAi5], or [WCAi6] is
output, the value adopted to the analog input can
be fixed to any value. Specify the value using the
break operation level [Ai4], [Ai5], or [Ai6].
• When the analog hold function [AHD] is enabled,
the input being held has higher priority.
• A hysteresis width can be specified to the upper
and lower limit levels of the window comparator.
• A level and a hysteresis width can be specified to
each of the analog inputs [Ai4] (Vi4,Ii4), [Ai5]
(Vi5,Ii5), and [Ai6] (Vi6,Ii6) individually.
• For details, refer to the instruction manual
provided together with the optional device.
Item Parameter Data Description
Output terminal function
selection 11-15
[CC-01]~[CC-05]
053
054
055 The signals 053 [Ai4Dc], 054 [Ai5Dc],
and 055 [Ai6Dc] will be output to the
output terminal assigned.
Relay output terminal function
selection 16A-16C
[CC-06]
Relay output terminal function
selection AL1-AL0/AL2-AL0
[CC-07]
Output terminal function
selection 11-15
[CC-01]~[CC-05]
059
060
061 The signals 059 [WCAi4], 060 [WCAi5],
and 061 [WCAi6] will be output to the
output terminal assigned.
Relay output terminal function
selection 16A-16C
[CC-06]
Relay output terminal function
selection AL1-AL0/AL2-AL0
[CC-07]
Window comparator
Ai4/Ai5/Ai6 upper limit level
Ai4:[oE-35]
Ai5:[oE-38]
0~100(%)
Specify the upper limits of the analog
inputs. The setting ranges are limited to
the lower limits or greater.
Ai6:[oE-41] -100~100(%)
Window comparator
Ai4/Ai5/Ai6 lower limit level
Ai4:[oE-36]
Ai5:[oE-39]
0~100(%)
Specify the lower limits of the analog
inputs. The setting ranges are limited to
the upper limits or smaller.
Ai6:[oE-42] -100~100(%)
Window comparator
Ai4/Ai5/Ai6 hysteresis width
Ai4:[oE-37]
Ai5:[oE-40]
Ai6:[oE-43]
0~10(%)
The maxim hysteresis widths are limited
to (upper limit level - lower limit level)/2.
Ai4/Ai5/Ai6 abnormal condition
analog operation level
Ai4:[oE-44]
Ai5:[oE-46]
0~100(%)
Specify the input values when the input
become within the ranges according to
their operation level selection.
Ai6:[oE-48] -100~100(%)
Ai4/Ai5/Ai6 abnormal condition
analog operation level
selection Ai4:[oE-45]
Ai5:[oE-47]
Ai6:[oE-49]
00 Disabled
01
When the enabled WC signal is in
operation (within the range)
02
When the enabled WC signal is out of
operation (beyond the range)
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