IPB-5000A
9. Time Chart
9-6
(5) Behavior of SOL1 and SOL2
SOL1 Output works by the Input of 1ST STAGE. When 1ST STAGE Input is open,
SOL1 Output also becomes open if it is before the start of a weld sequence. After
the start of a sequence, even if 1ST STAGE Input is open, SOL1 Output keeps
closed until the sequence comes to an end.
When using SOL1, 1ST STAGE Input allows SOL1 to adjust a squeeze location.
After inputting 1ST STAGE, weld current can be supplied by 2ND STAGE Input.
SOL1 becomes opened with SOL2 output after the end of HO in spite of the input
condition of 1ST STAGE.
SOL2 output works by the Input of 2ND STAGE and is closed from SQ to HO.
Symbol:
SQ: Squeeze Time RC: Resistance Pre-check Time
CP: Resistance Judgment Time (1ms) U1: Upslope 1 Time
W1: 1st Weld Time D1: Downslope 1 Time
CO: Cool Time U2: Upslope 2 Time
W2: 2nd Weld Time D2: Downslope 2 Time
HO: Hold Time
a: When 1ST STAGE Input is open before the start of a weld sequence, SOL1
Output also becomes open
b: Once the sequence is started, SOL1 Output keeps closed until HO is
completed even if 1ST STAGE Input is made open.
c: START SIG. TIME, the period set for prevention of chattering,
END Output
SOL2 Output
SOL1 Output
2ND STAGE
1ST STAGE
OFF
OFF
OFF
OFF
OFF
OFF
a b
c
SQ RC CP
U1
W1
D1
CO
U2
W2
D2
HO
Weld Current
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