Taie FA Series Operation Manual page 62

18.9 3 Zero crossing control (By TRIAC)
ψ
Available Models：FY900 / PFY900
OUT1: 3ψSCR zero cross control
Data Change：
R
T2
(RG 1)
(RG 2)
T1
G1
U
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OUTY=0
CYT1=1
S T
Fast Fuse
T2
T1
G1
V W
60
Controller
(RG 1)
(TG 1)
(RG 2)
(TG 1)
(TG 2)
(TG 2)