3.20 Main Menu - Analog I/O Option MCB
109 - Group 26
3.20.1 Analog I/O Option MCB 109, 26-**
The Analog I/O Option MCB 109 extends the functionality
of VLT Refrigeration Drive FC 103 Series frequency
converters, by adding a number of additional,
programmable analog inputs and outputs. This could be
especially useful in Building Management System instal-
lations where the frequency converter may be used as
decentral I/O, obviating the need for an outstation and
thus reducing cost.
Consider the diagram:
130BA382.10
M
M
M
P
T
T
T
H
Illustration 3.68
Analog I/O Carsd
Control Card
Power card
Room t
emper
atur
e
Supply t
emper
atur
e
O
ut
door t
emper
atur
e
Hea
ting C
oil
Cooling c
oil
Dampers or
Hea
t r
ec
ov
er
W
heel
Humidifier
D
uc
t P
ressur
e
Humidit
y sensor
Humidifier steps
or
Cooling steps
RELA
Y1
RELA
Y2
1 2 3
10 11 12
4 5 6 7 8 9
12 13 18 19 27 29 32 33 20 37 39 42 50 53 54 55
01 02 03 04 05 06
130BA381.10
X42
AIN
AIN
AIN
AOUT
AOUT
AOUT
24VDC
24VDC
DIN
DIN
DIN/DOUT
DIN/DOUT
DIN
DIN
AOUT
AIN
AIN
Illustration 3.69
Parameter Description
VLT
®
Refrigeration Drive Programming Guide
MG16H102 - VLT
®
is a registered Danfoss trademark
157
3
3