Danfoss VLT AQUA Drive FC 202 Programming Manual page 185

Parameter Description
3.23 Parameters 26-** Analog I/O Option
MCB 109
The Analog I/O Option MCB 109 extends the functionality
®
of VLT AQUA Drive FC 202 Series frequency converters, by
adding a number of additional, programmable analog
inputs and outputs. This could be especially useful in
control installations where the frequency converter may be
used as decentral I/O, obviating the need for an outstation
and thus reducing cost. It also gives flexibility in project
planning.
NOTICE
The maximum current for the analog outputs 0-10 V is 1
mA.
NOTICE
Where Live Zero Monitoring is used, it is important that
any analog inputs not being used for the frequency
controller, i.e. being used as part of the Building
Management System decentral I/O, should have their
Live Zero function disabled.
Terminal
Analog inputs
X42/1
X42/3
X42/5
Analog outputs
X42/7
X42/9
X42/11
Analog inputs
53
54
Analog output
42
Relays
Relay 1 Term 1, 2, 3
Relay 2 Term 4, 5, 6
Table 3.24 Relevant Parameters
It is also possible to read the analog inputs, write to the
analog outputs and control the relays, using communi-
cation via the serial bus. In this instance, these are the
relevant parameters.
MG20O702
Programming Guide
NOTICE
The relay outputs must be enabled via Control Word Bit
11 (Relay 1) and Bit 12 (Relay 2)
Table 3.25 Relevant Parameters
Parameters
Setting of on-board Real Time Clock.
26-00, 26-1*
The Analog I/O option incorporates a real time clock with
26-01, 26-2*
battery back-up. This can be used as back up of the clock
26-02, 26-3*
function included in the frequency converter as standard.
See parameter group 0-7*, Clock Settings.
26-4*
26-5*
The Analog I/O option can be used for the control of
26-6*
devices such as actuators or valves, using the Extended
Closed loop facility, thus removing control from the
6-1*
existing control system. See chapter 3.18 Parameters 21-**
6-2*
Extended Closed Loop. There are three independent closed
loop PID controllers.
6-5*
5-4*
5-4*
Danfoss A/S © Rev. 2014-01-21 All rights reserved.
Terminal
Analog inputs (read)
X42/1
X42/3
X42/5
Analog outputs (write)
X42/7
X42/9
X42/11
Analog inputs (read)
53
54
Analog output
42
Relays
Relay 1 Term 1, 2, 3
Relay 2 Term 4, 5, 6
Parameters
18-30
18-31
18-32
3
18-33
18-34
18-35
16-62
16-64
6-63
16-71
16-71
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