Danfoss OPTD7 VACON NXP Air Cooled User Guide
- June 16, 2024
- Danfoss
Table of Contents
Danfoss OPTD7 VACON NXP Air Cooled
Product Information
Specifications
| Technical item or function | Technical data | Description |
|---|---|---|
| Transformer primary/input voltage range | Min 380 V AC -15% Max 690 V AC +15% | |
| Transformer ratio primary:secondary | 60:1 | |
| Transformer secondary/output voltage range | 14 V rms | Between the terminals |
L1/L2/L3
Input impedence| L1/L2 = 50 k
L1/L3 = 25 k
L2/L3 = 25 k
L3 is internal virtual common|
Cable recommendation| Max 1.5 mm2, shielded| From transformer output to OPTD7
option board
Measurement resolution| 10 bit|
Voltage measurement accuracy| 0.2%| For D7 board measurement, transformer not
included
Frequency measurement accuracy| Accuracy:|
Product Overview
Intended Use
The OPTD7 option board is designed for line voltage measurement purposes.
Transformer Compatibility
The OPTD7 option board comes with a transformer suitable for voltage range
380-690 V. However, it cannot be used with pulsewidth modulated (PWM) voltage
input. If the input voltage to be measured is not within the voltage range, a
custom-built transformer can be used. The transformation ratio parameter can
be adjusted based on the transformer’s primary to secondary ratio. Please
refer to the specification section for more information.
Measurement Signal Limit
The measurement signal connected to the OPTD7 option board should not exceed
14.26 Vrms.
Product Usage Instructions
Installation
- Ensure that the power supply is turned off before installation.
- Connect the transformer output to the OPTD7 option board using a shielded cable with a maximum cross-sectional area of 1.5 mm2.
- Make sure the transformer is compatible with the voltage range of 380-690 V (excluding PWM voltage input).
- If using a custom-built transformer, adjust the transformation ratio parameter as per the transformer’s primary to secondary ratio.
Line Voltage Measurement
- Power on the equipment.
- Ensure that the measurement signal connected to the OPTD7 option board does not exceed 14.26 Vrms.
- The OPTD7 option board will provide accurate voltage measurements with a resolution of 10 bits and an accuracy of 0.2%.
FAQ
Can I dispose of the equipment containing electrical components with domestic
waste?
No, you should not dispose of equipment containing electrical components
together with domestic waste. Please collect it separately in accordance with
local and currently valid legislation.
Introduction
Purpose of the Operating Guide
This operating guide provides the information on the VACON® NX Line Voltage
Measurement OPTD7 Option Board used in VACON® NXP drives. It is intended for
qualified personnel. Read and follow the instructions to use the drive safely
and professionally.
Additional Resources
Other resources are available to understand advanced AC drive functions and
programming.
- The VACON® NX manuals provide greater detail on working with parameters and show many application examples.
- The VACON® NX I/O Boards User Manual gives more information on the I/O boards and their installation.
- Instructions for operation with option boards and other optional equipment. Supplementary publications and manuals are available from Danfoss.
Disposal
Do not dispose of equipment containing electrical components together with
domestic waste. Collect it separately in accordance with local and currently
valid legislation.
Product Overview
Intended Use
OPTD7 is an AC sinusoidal voltage measurement option board used in VACON® NXP
drives. VACON® NXP drive measures the line voltage, frequency and voltage
angle information using this board. VACON® NXP can compare this information
with its output volt-age angle when it is running. This feature can be used to
develop applications for different purposes using NC61131-3 application
programming tool.
Illustration 1: OPTD7 Option Board Layout
The OPTD7 option board is delivered with the transformer which is suitable for voltage range 380-690 V.
Illustration 2: Transformer
NOTE! The transformer can not be used with the pulse width modulated (PWM) voltage input.
It is possible to use custom built transformer when the input voltage to be measured is not within the voltage range 380-690 V. The transformation ratio parameter can be adjusted as per the transformer primary to secondary ratio. Please refer to specification sec-tion for more information.
NOTICE
The measurement signal connected into the OPTD7 option board can not exceed
14.26 Vrms. The OPTD7 option board can only be used in slot C of VACON® NXP
drive.
Type ID : VB00379
Specification
Table 1 : OPTD7 Option Board (VB00379 based on revision X)
| Technical item or function | Technical data | Description |
|---|---|---|
| Transformer primary/input voltage range | Min 380 V AC -15% |
Max 690 V AC +15%
|
Transformer ratio primary:secondary| 60:1|
Transformer secondary/output voltage range| 14 V rms| Between the terminals
L1/L2/L3
Input impedence| L1/L2 = 50 kΩ L1/L3 = 25 kΩ L2/L3 = 25 kΩ| L3 is internal
virtual common
Cable recommendation| Max 1.5 mm2, shielded| From transformer output to OPTD7
option board
Measurement resolution| 10 bit|
Voltage measurement accuracy| 0.2%| For D7 board measurement, transformer not
included
Frequency measurement accuracy| Accuracy: <10 mHz
Resolution: 10 mHz
| In frequency range 45-65 Hz
OPTD7 Option Board Menu
Parameters
- Transformer ratio: Transfer ratio of the measurement transformer.
- Default value : 60.00(690 V/11.5 V)
In case using other measurement transformers than the one supplied with the board, the voltage measurement shows correct num-bers by setting the transformer ratio right.
Monitoring
- Line voltage: Main voltage
- Line frequency : Main frequency(including sign)
Application Examples
Line Synchronization
Features:
- Frequency and phase angle synchronization between VACON® NXP drive and mains supply. Thus smooth Direct On Line (DOL) transfer of motor to the mains is possible with minimal peak current from the mains supply.
- External synchronizer is not required.
- Smooth transfer back to inverter with fast catch on fly feature.
- Changeover activation possible through either I/O, fieldbus or keypad.
- Compensation parameters for the changeover circuit delay and offset angle to the synchronization.
- Indication for ‘Line Synch OK’ programmable to digital outputs.
- Mains voltage and frequency monitoring on keypad and PC tool.
- Applicable to any size of LV (low voltage) motor and MV (medium voltage) motor through step up transformer.
- OPTD7 option board is used for mains supply voltage measurement as shown in Illustration 3.
Illustration 3: Block Diagram for Direct ON Line Transfer of Motor
- Mains supply
- Measurement transformer
- VACON AC drive
- Drive contactor
- Bypass contactor
See Illustration 4 for the connection diagram example for OPTD7 option board and voltage transformer in Line Synchronization applications.
Operating Guide
Illustration 4: Connection in Line Synchronization Applications
Fundamental Front End (NXF)
OPTD7 option board is used to feedback the main supply voltage and frequency
with VACON® NXF, fundamental front end. Funda-mental front end is IGBT based
regenerative supply unit. It is used to supply one or multiple inverters in a
common DC bus system. For more details, please refer to
www.danfoss.com or contact Danfoss Sales Support.
See the connection of OPTD7 option board and voltage transformer in FFE
applications in Illustration 5.
Illustration 5: Connection in FFE Applications
Vacon Ltd, Member of the Danfoss Group Runsorintie 7 FIN-65380 Vaasa www.danfoss.com
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