Technical Manual WP-Line151_R2_2

WP-Line 151 GRID

This technical manual Rev R2_2 covers following WP-Line 151 versions:

HW revision: From PCB05004-02

SW revision: From 1.1.2

Contents

1. Revisions (3)

2. General Description (4)

Connections (4)

2.1. I/O

2.2. Input / Output terminals (4)

Bus (4)

2.3. WP-Line

3. I/O Description (5)

3.1. Current

input (5)

input (5)

3.2. Voltage

4. Module setup (6)

4.1. Connection between the modules (6)

4.2. Switch on the module (7)

5. System connections to module (8)

5.1. Connection Examples Current input (8)

5.2. Connection Example Voltage input (10)

5.3. Additional notes on Current inputs (11)

5.4. Additional notes for WP4060 connection (13)

6. Module states (14)

7. 7-segment LED displays (15)

7.1. Generally (15)

7.2. Display condition: Normal (15)

7.3. Display condition: Failure (16)

7.4. Display condition: Node adjustment (16)

7.5. Showing of characters in display (17)

8. Module codes (18)

codes (18)

8.1. Status

codes (18)

8.2. Error

9. Configuring of WP-Line 151 through the WP4000 Controller (19)

9.1. Voltage measurement – voltage transformers (19)

9.2. Current measurement – current transformers (19)

10. Module information (19)

10.1. Specific variables (20)

11. Grid Monitoring (20)

11.1. Frequency Monitoring (20)

11.2. Voltage monitoring (21)

11.3. Vectorjump monitoring (21)

12. Function Description (22)

13. Ambient / Test conditions (23)

14. Appendix (24)

14.1. A. Mounting on DIN rail (24)

14.2. B. Mechanical (25)

14.3. C. Changing from WP-Line150 to WP-Line151 (26)

14.4. D. SW Error codes (29)

14.5. E: List of supported I/O′s of WP-Line 151 module (applies to specified SW release) (30)

1. Revisions

Modifications

Revision Date Author

release

R1_0 07-01-2008 OMO First

R1_1 14-01-2008 OMO I/O Description added

R1_2 16-01-2008 OMO System connections to module updated

updates

R1_3 21-01-2008 OMO Misc.

R2_0 11-02-2008 OMO Comments after review

updates

R2_1 08-04-2008 OMO Misc.

R2_2 09-12-2008 LLA 2 examples with current transformer (5.3)

2. General Description 2.1. I/O Connections

The management is configured in the following way.

WP-Line BUS 12VDC

WP-Line BUS

12VDC

input input

Figure 1.

2.2. Input / Output terminals

Function Number Terminals Configuration

Current Input 3 1 0-5Arms.

Voltage Input 3 2 0-18Vrms Alarm 3 3 Alarm/relay output

2.3. WP-Line Bus

1MBit CAN Communication to WP-Line modules.

Maksimum 3 Module loads (450mA) current Consumption from WP-Line BUS

3. I/O Description

3.1. Current input

?Input nominal = 0-5A RMS

?Input maximum = 5A + 20%

?Input Impedance ≈10m Ohm // 50nF

?Input resolution = 16 bit

?Input Bandwidth ≈10 kHz (on input pins)

?Accuracy = 0.2 % (at 1A Full Scale input)

?Accuracy = 0.2 % (at 5A Full Scale input)

? 3 phase Freq range (measurement) = 45-65 Hz

3.2. Voltage input

?Input nominal = 0-18V RMS

?Input maximum = 18V + 20%

?Input Impedance ≈9K Ohm // 50nF

?Input resolution = 16 bit

?Input Bandwidth ≈10 kHz (on input pins)

?Accuracy = 0.2 % of Full scale

? 3 phase Freq range (measurement) = 45-65 Hz

4. Module setup

4.1.

Connection between the modules

Connect the modules on the DIN-rail.

Figure 2

4.2. Switch on the module

1.Connect the power and the I/O to the module.

2.Turn on the power.

Figure 3.

3.Node adjustment

To activate this condition, press and hold the reset key of the module. When holding the reset key, the display will show “Au”. After 1 second the display will switch to “01”,

after another second it switches to “02” and so on until “15”, after which it is ‘wrapped around’ and “Au” is shown again. When the reset key is no longer depressed, the node number is set to the value shown in the display. The value “Au” means that a node

number is automatically being allocated.

5. System connections to module

5.1. Connection Examples Current input

Below are showed principal examples of connections for the current inputs of the module (theses are only principle, and may vary from installation to installation):

The standard and recommended WP-Line151 connection is using current transformers with no PE.

Example of current input connection (RECOMMENDED Connection)

Figure 4a.

In some cases the current transformers are connected to PE.

In this case it is important to externally connect PE to L1-L3 EARTH connection, in the current input connector of WP-Line 151, as indicated in figure 4.b.

Example of current input connection (Current Transformer connected to EARTH)

Figure 4b.

5.2. Connection Example Voltage input

Below are showed principal example of connection for the voltage inputs of the module (theses are only principle, and may vary from installation to installation):

It is recommended to keep WP-Line 151 and WP3090 mounted relatively close (maximum 2m cable between the modules)

Example of voltage input connection

Figure 5.

5.3. Additional notes on Current inputs

Impedance

It is important to be aware of the low input impedance of the Current inputs of the module.

When designing a “system”, that is, attaching other peripherals and connections involving the module, this must be kept in mind.

Also note that the – (minus) current-inputs are attached to EARTH internally.

Be carefully not to “short-circuit” the input, if, for instance, a Current transformer with EARTH are used! (This will cause the module to measure wrong, can be in the sub

percentage range, which is difficult to detect!)

WP-Line 151

Figure 6. Internal WP-Line 151 (1 phase current-input)

Notes for selecting current transformer

When selecting current transformer it is important to be aware of the VA rating!

The transformer must be designed to be able to supply power into the total load connected, that is, load of cable, input impedance of WP-Line 151 module, and what load else may be connected (could be WP4060).

Giving in following equation: VA (current transformer) > total power loss

Total power loss = R * I2

(where R = ρ*(l/a) + R WP4060 + R WP151)

ρ: Resistivity

l: Length of wire (transformer to module and back)

a: cross-sectional area of used cable

R WP4060 = Input Impedance of WP4060

R WP151 = Input Impedance WP-Line 151 (10m?)

Example 1: Current transformer with P = 5VA and I nom = 1A => Max. R = Total power loss / I2 = 5VA / 1A2 = 5?

Example 2: Current transformer with P = 10VA and I nom = 5A => Max. R = Total power loss / I2 = 10VA / 5A2 = 0.4?

Where R = ρ*(l/a) + R WP4060+ R WP151 = cable impedance + R WP4060 + 10m?

5.4. Additional notes for WP4060 connection

When using WP4060, the low input impedance of WP-Line 151 will impact the voltage “generated” on the connecters, and an externally resister must be added in order to make the WP4060 measure correct!

Placing a 2.2 ohm “series” resistor in the connector at WP4060, with wiring as indicated in above figure, will make the complete system (WP-Line 151 and WP4060) measure correct!

Above figure is only describing one way to use 4060, there may be a number of other ways to use this (separate current transformer for WP4060, etc).

For 1 Amps systems use part number: 0140030, (2.2R 5W)

0140240, (2.2R 11W alternatively).

(For 5 Amps systems use 0.5R / 20 W resistor)

Be aware that the VA rating of the current transformer must be adequate to overcome wire and resistors.

6. Module states

The Module can be in several different states, controlled by WP4000 SW. The normal way for the module to start, is by starting from state A0 going up and ending at A5.

In figure 8 the module states are showed. It will always starting at A0 and going to the other states. For further description see Table 1.

Possible displayed module states:

State Function Description

BL

Bootloader A1 Silent mode:

During startup it is detected whether the module is capable to run:

1. Error state=false or

2. Error state=true

If missing module type in EEPROM or other HW than expected, it will stay in Silent until it is reset. Otherwise if Error state =false it will going to

1. IN mode or

2. IN/OUT mode

A3 IN mode:

In this state the Input Scan and the Database Scan is performed so subscription updates are maintained.

This state is escaped to SILENT when command go in SILENT is received, or to reset if an error is occurred.

A5 Module state IN/OUT mode

In this state the Input Scan, the Output Scan and the Database Scan is performed so

subscription updates are maintained and the output updates are also maintained. This state is escaped to reset, EMERGENCY or to SILENT when commands are received either via CAN or an error is occurred.

db DSP Boot loader d1 DSP Silent mode d5 DSP state DSP In/Out mode

Table 1. State A0, A2 and A4 are all initialization states for the others states.

7. 7-segment LED displays 7.1. Generally

The display on the WP-Line 151 modules consists of two 7-segment LEDs.

The display can be in three different display states. The display conditions are not to be confused with the module conditions, as these are not always the same. The display condition is determining exclusively what to display and how to display it.

The three display conditions:

? Normal ? Failure

? Node adjustment (Set Node)

7.2. Display condition: Normal

As the name implies, the condition is to be used as default. In normal condition the display will be showing three different values:

? Node number: Node number as a decimal value 1..15. ? Mode: Actual mode of the module (A0-A9, BL).

? Specific value: Value specific for the individual module. I.e. it is possible for the module to choose which value is to be displayed. The value is displayed in hexadecimals. If the value is zero, it will not be shown.

Example: In application, silent mode, node number = 3, specific value = 10:

Example: In application, silent mode, node number = 3, specific value = 0:

7.3. Display condition: Failure

This condition is used if some kind of failure occurs, there exist two kind of failures: 1. Critical errors and 2. status errors.

1. Critical Error

This condition is only used if a serious error occurs. In the error condition the display will alternately show the following two values, while flashing:

? Error indication: The letters ”EE” are shown.

? Error code: The number describing the actual error is shown as a decimal number.

Overview of possible error codes => See table 3 Example: error code 53 is set.

2. Status Error

This condition is used if the module status is different from #0 (everything OK) Four values are displayed alternately:

1. Mode indication: Actual mode of the module (A0-A5).

2. Status indication: ”St” indicates that a status different from zero has been set.

3. First two digits: first two decimal digits of the status number. Shown as decimals.

4. Last two digits: last two decimal digits of the status number. Shown as decimals.

Example: Status code 317 is set, is in In-mode:

7.4. Display condition: Node adjustment

This condition is used for adjusting the node number of the module.

To activate this condition, press and hold the reset key of the module. When holding the reset key, the display will show “Au”. After 1 second the display will switch to “01”, after another second it switches to “02” and so on until “15”, after which it is ‘wrapped around’ and “Au” is shown again. When the reset key is no longer depressed, the node number is set to the value shown in the display. The value “Au” means that a node number is automatically being allocated.

Example: Set node number = 3

Reset

7.5. Showing of characters in display

As mentioned earlier, the display consists of two 7-segment LED displays. How the different information is shown in the display is illustrated in the table below. At the top is shown, how the separate digits are presented (shown as individual LEDs). Below the different combinations of the

8. Module codes

8.1. Status codes

Possible Status codes for the Module

# Meaning Remarks

OK

0 Everything

3 WPLINE_APP_DONT_START

4 FLASH_ERROR_FILETYPE

5 FLASH_ERROR_CRC

6 FLASH_ERROR_FILESIZE

7 FLASH_ERROR_VERIFY

9 CPLD_INIT_ERROR

10 MISSING_CONTROLLER_COMMUNICATION Updating between WP4000 and WP-

Line

11 OUTPUT_DATAID_BUFFER_FULL Output DataID buffer is full

12 MODULE_HARDWARE_REVISION_ERROR Wrong module HW revision

13 MODULE_SOFTWARE_REVISION_ERROR Wrong module SW revision

14 READ_INTERNAL_EEPROM_ERROR Error reading the EEPROM

15 WRITE_INTERNAL_EEPROM_ERROR Error writing to the EEPROM

type

module

16 WRONG_MODULE_TYPE Wrong

18 CAN_INIT_ERROR CAN initiates error

19 CAN_TRANSMITBUFFER_OVERFLOW CAN transmit buffer is full

20 LINK_ERROR_NODENO_ASSIGN Assignment error with the node

numbering

21 LINK_ERROR_NODENO_16 Has node number 16, needs another

node number from WPL100/110

22 RETRANSMISSION_MAX

23 LINK_ERROR_DYNAMIC

300 WPL151_NOT_CALIBRATED_ERROR WP-Line151 not calibrated.

Table 2

8.2. Error codes

Possible Error codes for the Module:

# Meaning Remarks

51 DSP_WATCHDOG_ERROR_CODE DSP watchdog error.

52 DSP_RESTART_ERROR_CODE DSP

error.

restart

wrong

status.

53 DSP_STATUS_ERROR DSP

54 DSP_NOT_IN_BOOTLOADER DSP not in bootloader.

55 DSP_NOT_IN_APPLICATION DSP not in application

56 DSP_HPI_NOT_READY DSP

HPI mode not ready

Table 3

9. Configuring of WP-Line 151 through the WP4000 Controller

Before the module can measure correct the voltage and current transformers ration must be accounted for in the module.

9.1. Voltage measurement – voltage transformers

Voltage probe ratio must be defined and transferred to the module in following variables: Variable name Function

WP4000 U Cal L1 Voltage trafo ratio (Default 1:22.111 for WP3090)

WP4000 U Cal L2 Voltage trafo ratio (Default 1:22.111 for WP3090)

WP4000 U Cal L3 Voltage trafo ratio (Default 1:22.111 for WP3090)

9.2. Current measurement – current transformers

Current probe ratio must be defined and transferred to the module in following variables: Variable name Function

WP4000 I Cal L1 Current trafo ratio

WP4000 I Cal L2 Current trafo ratio

WP4000 I Cal L3 Current trafo ratio

10. Module information

It is possible to get some status information from the module, below is a description of variables: Variable name Function Comment

Type Indicates type of module, ex 151 for

grid module

Serial number The unique serial number of the module

Hardware project Internal Mita project number

Hardware revision The actual PCB revision of the module

Example 5 => in/out mode Module state Indicates module state, see section 7.1

for specific codes

Module status Here the status/error codes are shown,

Example 0 => all OK!

see section 7.2 for meaning of values

Module temperature Indicates internal temperature of the

module

Module uptime Shows (in seconds) how long the

module has been running

10.1. Specific variables

Under specific variables, it is possible to get following status information

Variable name Function Comment

DataID Count Number of variables that it is possible

for the module to use/transfer

Periods pr. Update Indicates number of periods pr update

DSP State Shows current state of DSP See table 2

DSP Status Show if all ok (0) or if something

wrong (1)

DSP alive Indicates number of “alive” packets

received from DSP processor

Clear All Clears alarm bits that are set

11. Grid Monitoring

11.1. Frequency Monitoring

The module can monitor whether the frequency is within a specified area and set an alarm if frequency is out of limit

If function is enabled, and frequency out of limit => A Bad frequency is set (1), further-

more a interrupt can be generated, by setting A Badfreq int. EN. To 1

The function has following parameters:

Variable name I/O Function Comment

A BadFreq Enable I Enables badfreq monitoring 1 => Enable; 0 => Disable

I Set minimum allowable limit

A BadFreq Min.

Limit

I Set maximum allowable limit

A BadFreq Max.

Limit

A Badfreq Int. En. I Enables Interrupt when badfreq 1 => Enable; 0 => Disable

A Badfreq A. State O Shows if freq. is out of range

1 => Alarm; 0 => Freq OK

(if function enabled)