Fuji Electric Frenic lift, Reference Manual

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E20, E21
E22 to E27
Signal Assignment to [Y1] to [Y2] (Transistor signal)
Signal Assignment to [Y3A/C], to [Y5A/C] and [30A/B/C](Relay contact signal)
E20 to E24 and E27 assign output signals (listed on the next page) to general-purpose,
programmable output terminals [Y1], [Y2], [Y3A/C] to [Y5A/C] and [30A/B/C]. These function
codes can also switch the logic system between normal and negative to define the property of those
output terminals so that the inverter logic can interpret either the ON or OFF status of each terminal
as active. The factory default settings are "Active ON."
Terminals [Y1] and [Y2] are transistor outputs and terminals, [Y3A/C] to [Y5A/C] and [30A/B/C]
are relay contact outputs. In normal logic, if an alarm occurs, the relay will be energized so that
[30A] and [30C] will be closed, and [30B] and [30C] opened. In negative logic, the relay will be
deenergized so that [30A] and [30C] will be opened, and [30B] and [30C] closed. This may be useful
for the implementation of failsafe power systems.
• When a negative logic is employed, all output signals are active (e.g. an alarm would be
recognized) while the inverter is powered OFF. To avoid causing system malfunctions by
this, interlock these signals to keep them ON using an external power source.
Furthermore, the validity of these output signals is not guaranteed for approximately 3
seconds after power-on, so introduce such a mechanism that masks them during the
transient period.
• Terminals [Y3A/C] to [Y5A/C] and [30A/B/C]) use mechanical contacts that cannot
stand frequent ON/OFF switching. Where a frequent ON/OFF switching is required, use
transistor outputs [Y1] and [Y2]. The service life of a relay is approximately 200,000
times if it is switched ON and OFF at one-second intervals.
The table on the following page lists functions that can be assigned to terminals [Y1], [Y2], [Y3A/C]
to [Y5A/C] and [30A/B/C].
To make the explanation simpler, the examples shown below are all written for the normal logic
(Active ON).
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