Chapter 6 Fastening Operation
PAGE 6-78
6-6-5 SEQUENCE OPERATION
Besides the standard fastening process provided in Parameter 1 ~ 64, two types of sequence operation modes
are provided which, are available for accommodating applications requiring more complex processes.
64 fastening parameters can be used to program up to 8 stages in a fastening sequence.
Batch sequence: Multiple parameter settings are used and at each stage, an operation each requiring a
separate start signal, is repeated for the number of times designated by a “Count.”
Continuous sequence: Up to 8 stages of operation, each with a selectable parameter setting are executed in
order. A single start signal must be sustained and held until the selected sequences are completed.
The designation of a Sequence Operation Mode other than “0: Standard Operation” shall designate the use of a
sequence setting (with Work Select No. = Parameter No.)
[Precautions using the Sequence Operation Mode]
・Start signal input can be via external IO or the start lever of the tool.
・The start signal must be maintained for sequence operation. (Deadman type operation)
・Sequence operation stops immediately with any reject during the sequence cycle.
・The Accept signal will output only when the sequence operation completes normally.
・Fastening results of each stage are saved. (Result history, Curve history, CF card)
・Spindle cycle count is incremented at the final stage only.
・Curve data is saved as continuous data, except when free-run (speed) occurs.
*The curve data for each stage cannot be read or saved via the HFC3000 user console. The curve
data at the end of sequence is only read/saved (but may include data from a previous stage if
curve range length is setup high enough to include it and “Include Last Curve” is checked in the
curve screen)
(Only the torque-angle curve (540deg fixed length) is saved in the curve history of the CF card.)
D-No.580 Sequence Mode Setting Range: 0~3
0: Standard operation (sequence unavailable)
1: Batch sequence
2: Continuous Sequence 1 (REJECT is not output when the lever is switched off in the middle)
3: Continuous Sequence 2 (REJECT is output when the lever is switched off in the middle)
D-No.581 Sequence Stage 1 [Parameter No./ Count / Dwell Time]
D-No.582 Sequence Stage 2 [Parameter No./ Count / Dwell Time]
D-No.583 Sequence Stage 3 [Parameter No./ Count / Dwell Time]
D-No.584 Sequence Stage 4 [Parameter No./ Count / Dwell Time]
D-No.585 Sequence Stage 5 [Parameter No./ Count / Dwell Time]
D-No.586 Sequence Stage 6 [Parameter No./ Count / Dwell Time]
D-No.587 Sequence Stage 7 [Parameter No./ Count / Dwell Time]
D-No.588 Sequence Stage 8 [Parameter No./ Count / Dwell Time]
Setting ranges: 0~99 (*D-No.581: Parm. 1~64 / Count:0~99 (times) / Dwell:0~99 [×0.1 second])
Default value: 000000 (*D-No.581:XXYYZZ, XX=Parameter No., YY=Count, ZZ=Dwell)
Precautions setting [D-No.581 [Sequence Operation Stage 1]]
・Setting “0” as a parameter No. when any sequence type (1. Batch sequence, 2. Continuous
Sequence 1, or 3. Continuous Sequence 2) has been set, will cause the abnormal signal A.
09-02 “Missing Parameter Setting” to occur after the start signal is input (ON). (The Batch or
Continuous Sequence function requires a parameter number to be set)
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