Regulation Terms - Bosch PST 6101.321 Technical Information

Annex
SQZ Squeeze time: time that elapses before the weld time. The electrodes squeeze the parts to
be welded together.
Stepper Current (heat) stepping for compensating for electrode wear
Temp Temperature
UST Upslope Time; time during which the Current (HEAT) stops after beginning of 2.WLD
WC Weld Complete contact: signal is output when the spot has been completed
WLD Weld time: entire weld time including cool times
WT Weld timer, also called resistance weld timer
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Regulation terms

%Ht Specification of heat in %Ht: represents the electrical phase angle (same as %I)
%I Specification of current in %I: represents the electrical phase angle (same as %Ht)
kA kilo Amperes
KSR Constant current regulation: the current in the secondary circuit is maintained constant by
regulation
KUR Constant voltage regulation: compensation for mains voltage fluctuations
PHA Phase angle (shift) regulation
SKT Scale Units; correspond to an electrical phase angle.
(SKV)
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PST 6101.321 / PSI 6101.321
1070 080 056-101 (99.09) GB