Terminal X42/1 Mode; Setting Of On-Board Real Time Clock; Relevant Parameters - Danfoss VLT Programming Manual

®
VLT HVAC Drive Programming Guide
Terminal Parameters
Analog inputs (read)
X42/1 Par. 18-30
put X42/1
X42/3 Par. 18-31
put X42/3
X42/5 Par. 18-32
put X42/5
Analog outputs (write)
X42/7 Par. 18-33
X42/7 [V]
X42/9 Par. 18-34
X42/9 [V]
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 back up of the clock function included in the frequency
converter as standard. See section Clock Settings, parameter group 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 parameter group 21-**. There are three independent closed
loop PID controllers.
3.24.2 26-0* Analog I/O Mode
Parameter group for setting up the analog I/O configuration. The option is equipped with 3 analog inputs. These analog inputs can be freely allocated
to either voltage (0V - +10V), Pt 1000 or Ni 1000 temperature sensor input.

26-00 Terminal X42/1 Mode

Option:
[1] * Voltage
[2] Pt 1000 [°C]
[3] Pt 1000 [°F]
[4] Ni 1000 [°C]
[5] Ni 1000 [°F]
Terminal
Analog inputs (read)
Analog In- 53
Analog In- 54
Analog In-
Analog output (write)
Analog Out 42
Analog Out
Analog Out
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 Ni 1000
, [2] and
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
Reference/Feedback Unit
(par. 20-12
Feedback Unit
or par. 21-50
MG.11.C9.02 - VLT ® is a registered Danfoss trademark
Parameters Terminal
Relays
Par. 16-62 Analog In- Relay 1 Term 1, 2, 3
put 53
Par. 16-64 Analog In- 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)
[4] if operating in Celsius - Pt 1000 [3] and Ni 1000 [5] if operating in
Ext. 1 Ref./Feedback Unit
, par. 21-10
Ext. 3 Ref./Feedback Unit
).
3 Parameter Description
Parameters
Par. 16-71 Relay Out-
put [bin]
Par. 16-71 Relay Out-
put [bin]
3
Ext. 2 Ref./
, par. 21-30
255