Fuji Electric Faldic-a Series, User Manual

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MHT258a (Engl.) 5-18
5.4.2 Deviation clear
When this signal turns on, the difference (deviation) between current command position and current feedback position is cleared to zero.
While this signal is on, the difference (deviation) is kept to zero.
The deviation clear is valid during the on period of "speed zero" [NZERO] signal.
Current command position is assigned as current feedback position.
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Interface
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Parameter setting
To allocate the deviation clear signal to the control input terminal, set (50) to the system para.
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Related items
All of the rotation commands are ignored while the deviation clear signal is on.
Even if the deviation clear is carried out, the current feedback position does not change.
The remaining deviation due to the contact stoppage can be cleared to zero when the work is released, in order to avoid movement
corresponding to the deviation quantity.
When the deviation clear is carried out, the deviation zero signal of the control output is on. See 5-4-4
5.4.3 Position preset
When this signal turns on, the current command position can be rewritten.
At the ON edge of this signal input, the current command position can be rewritten to the basic para. 80 setting. .On edge means the control
input signal's transfer point from off to on.
Position preset is executable while speed zero [NZERO] signal is on. The origin return complete signal is output.
This signal will reset the following alarm detection:
1) ABS (absolute) data lost
2) Multiple rotation overflow
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Interface
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Parameter setting
To allocate the position preset signal to the control input terminal, set (16) to the system para. If this signal is not allocated to the control
input terminal, this signal is deemed "always off."
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Related item
Basic parameter 80
Para. Name Setting range Initial value Change
80 Preset position 0 to
±
79,999,999 ( in increments of 1) 0 Always
* When the basic para. 95 is set, the decimal point indication is available.
At the ON edge of position preset, the current command position can be rewritten by the basic para. 80 setting.
ON : Clears deviation
OFF : Nothing done
Position preset (16)
ON edge : Presets the current command position
P24
M24
2.2k
+24V
P24
M24
2.2k
+24V