Table of Contents
Advertisement
VLT
®
HVAC Drive Programming Guide
NOTE!
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
Parameters
Analog inputs
X42/1
par.26-00
Terminal X42/1
Mode
Terminal X42/3
X42/3
par.26-01
Mode
Terminal X42/5
X42/5
par.26-02
Mode
Analog outputs
X42/7
26-4*
X42/9
26-5*
X42/11
26-6*
Table 3.3: Relevant parameters
It is also possible to read the analog inputs, write to the analog outputs and control the relays, using communication via the serial bus. In this instance,
these are the relevant parameters.
Terminal
Parameters
Analog inputs (read)
X42/1
par.18-30
Analog Input
X42/1
Analog Input
X42/3
par.18-31
X42/3
Analog Input
X42/5
par.18-32
X42/5
Analog outputs (write)
X42/7
par.18-33
Analog Out X42/7
[V]
Analog Out X42/9
X42/9
par.18-34
[V]
Analog Out
X42/11
par.18-35
X42/11 [V]
Table 3.4: Relevant parameters
Setting of on-board Real Time Clock.
The Analog I/O option incorporates a real time clock with battery back-up. This can be used as a back-up of the clock function included in the adjustable
frequency drive as standard. See section Clock Settings, par. 0-7*.
The Analog I/O option can be used for the control of devices such as servos or valves, using the extended closed-loop facility, thus removing control from
the building management system. See section Parameters: Ext. Closed-loop – FC 100 par. 21-**. There are three independent closed-loop PID controllers.
Terminal
Analog inputs
53
, 26-1*
54
, 26-2*
, 26-3*
Analog output
42
Terminal
Analog inputs (read)
53
54
Analog output (write)
42
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
Parameters
Terminal
Relays
6-1*
Relay 1 Term 1, 2, 3
6-2*
Relay 2 Term 4, 5, 6
6-5*
Parameters
Terminal
Relays
par.16-62
Analog In-
Relay 1 Term 1, 2, 3
put 53
Analog In-
par.16-64
Relay 2 Term 4, 5, 6
put 54
par.6-53
Terminal 42
NOTE! The relay outputs must be enabled via
Output Bus Control
Control Word Bit 11 (Relay 1) and Bit 12 (Relay
2)
3 Parameter Description
Parameters
3
5-4*
5-4*
Parameters
par.16-71
Relay Output
[bin]
Relay Output
par.16-71
[bin]
3-251
Advertisement
Table of Contents
