Sonic Alert Digital Program Controller DCP301 - Manual (Page 121)

Chapter 7. PARAMETER SETUP
7-36
(3) Equivalent circuit when N number of SSRs are connected in series
DCP301 SSR 1
I O
(V O ) V SSR'
Z
V D
SSR N
+
–
V SSR'
Z
V D
– –
+ +
Formulas (3) and (4) formulas must be satisfied.
(3) formula V
SSR/MIN
≤
I
O
x Z + V
D
≤
V
O
/N
(4) formula V
SSR'
≤
V
SSR/MAX
(V
SSR'
= I
O
x Z + V
D
)
(4) Equivalent circuit when N number of SSRs are connected in parallel
DCP301 SSR 1
+
–
+
–
I O
(V O ) V SSR'
Z
V D
SSR N
+
–
V SSR'
Z
V D
I O /N I O /N
Formulas (5) and (6) formulas must be satisfied.
(5) formula V
SSR/MIN
≤
I
O
/N x Z + V
D
≤
V
O
(6) formula V
SSR'
≤
V
SSR/MAX
(V
SSR'
= I
O
/N x Z + V
D
)