Terminal
Parameters
Terminal
Parameters
Terminal
Parameters
Analog inputs
Analog inputs
Relays
X42/1
26-00, 26-1*
53
6-1*
Relay 1 Term 1, 2, 3
5-4*
X42/3
26-01, 26-2*
54
6-2*
Relay 2 Term 4, 5, 6
5-4*
X42/5
26-02, 26-3*
Analog outputs
Analog output
X42/7
26-4*
42
6-5*
X42/9
26-5*
X42/11
26-6*
Table 3.2: 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
Terminal
Parameters
Terminal
Parameters
Analog inputs (read)
Analog inputs (read)
Relays
X42/1
18-30
53
16-62
Relay 1 Term 1, 2, 3
16-71
X42/3
18-31
54
16-64
Relay 2 Term 4, 5, 6
16-71
X42/5
18-32
Analog outputs (write)
Analog output (write)
X42/7
18-33
42
6-53
NOTE! The relay outputs must be enabled via
Control Word Bit 11 (Relay 1) and Bit 12 (Relay
2)
X42/9
18-34
X42/11
18-35
Table 3.3: 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 back up of the clock function included in the frequency
converter as standard. See section Clock Settings, par 0-7*.
The Analog I/O option can be used for the control of devices such as actuators 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.
26-00 Terminal X42/1 Mode
Option:
Function:
Terminal X42/1 can be programmed as an analog input accepting a voltage or input from either Pt1000 (1000
Ω
at 0°C) or Ni 1000 (1000
Ω
at 0°C) temperature sensors. Select the desired mode.
Pt 1000
, [2] and
Ni 1000
[4] if operating in Celsius - Pt 1000 [3] and Ni 1000 [5] if operating in Fahrenheit.
Notice: If the input is not in use, it must be set for Voltage!
If set for temperature and used as feed back, the unit must be set for either Celsius or Fahrenheit (par. 20-12,
21-10, 21-30 or 21-50).
[1]
Voltage
[2]
[3]
Pt 1000 (°C)
Pt 1000 (°F)
[4]
Ni 1000 (°C)
[5]
Ni 1000 (°F)
3. Parameter Description
VLT
®
HVAC Drive Programming Guide
224
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
3
