Chapter 9 Specification - Hitachi SJ-FB Instruction Manual

Feed-back board
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Product specification
Item
Encoder feed-back:
Speed
control
Speed control system:
Position command:
Position
control
Electronic gear:
Stop position:
Orientation
Speed:
Protection function
(Note 1): The main body setting or external input is selectable.
SJ-DG (digital input option board) is required in case of external input.
(Note 2): It depends on what type of main body combines with the SJ-FB, the setting value
conversion is different.
Please refer to the (Note 3) of the "5.3 Items regarding the feed back board of the inverter
main body".
HITACHI
Chapter 9
Standard encoder pulse number 1024 pulse/r
Max. input pulse 100k pulse/s
Proportional-Integral (PI) / Proportional (P) control
Three kinds of pulse train input selectable by main body setting.
Mode 0 : 90° phase difference pulse
Mode 1 : Forward/Reverse signal pulse
Mode 2 : Forward pulse/Reverse pulse
Max. input pulse 100k pulse/s
Pulse ratio A/B (A, B: 1~9999 selectable)
Setting range 1/50 ≤ A/B ≤ 20
4096 division against 1 rotation of the motor shaft (Note 1)
Orientation speed and turn direction selectable
Encoder cable line break protection
Over speed protection (over speed error detection level (P026))
(Note 2)
Positioning error
Connection abnormal of SJ-FB
32
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SPECIFICATION
Specification
HAL-PC041100

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