Vacon Plc
Phone: +358-201 2121
Fax:+358-201 212 205
Service: +358-40-8371 150
E-mail: [email protected]
Page 4
Vacon
Pump and fan control with autochange
The logic of I/O-control signals and push button signals from the panel are presented in the figure
3-1.
3 Control signal logic
Figure 3-1
Control signal logic of the Pump and fan control Application.
Switch positions shown correspond to the factory settings.
U in+
Iin –
D IB 5
D IA 2
D IB 6
D IA 3
D IA 1
P
P
D IB 4
P
I
D IA 3
D IA 2
pf ca ut o .f h3
R ST
PG
R O 1
R O 2
I nt ern a l
f req u en cy
re fe re nce
In te rna l
S ta rt/S t op
= control line
= signal line
D o w n
P R O G RA M M A B L E
P U S H -B UT TO N 2
M otorise d
po te n tio -
m eter
ref ere n ce
A u to ch an g e 2
PA RA M E T E RS
2
.
2 6 S ou rce B re f. se le ct.
2
.
1 5 S ou rce A re f. se le ct.
4
.
1 2 Jog g in g s p ee d re f.
P I -con tro lle r
R efe ren ce ,
S ou rce A
F req. ref.,
Sourc e B
Ac tual
valu e
Up
Ac tual v al ue
sele c tio n
S tart/Stop , sou rce A
Sta rt/S top, s ourc e B
J ogg in g spe ed s
(Prog ram m able)
C alcu la tio n of
fre q . re f. a nd
c o nt rol lo gic o f
a uxilia ry d rives
In terlo c k 1
In terlo c k 2
A utoch a ng e
lo g ic
S ou rce A /B se lec t.
Autochange 1