GoodWe SolarGo App User Manual
Version: V1.0 - 2021-10-30
1 About This Manual
This manual introduces commonly used operations in the SolarGo App. Before setting any parameters, it is crucial to read through the app and the inverter user manual to understand the product functions and features. Improper inverter parameter settings may lead to failure in connecting to the utility grid or damage to the battery, affecting power generation.
This manual is subject to update without notice. For more product details and the latest documents, please visit www.goodwe.com.
1.1 Target Audience
This manual is intended for trained and knowledgeable technical professionals who are familiar with the product, local standards, and electric systems.
1.2 Symbol Definition
Symbol | Level | Description |
---|---|---|
⚠ DANGER | High-level hazard | Indicates a high-level hazard that, if not avoided, will result in death or serious injury. |
⚠ WARNING | Medium-level hazard | Indicates a medium-level hazard that, if not avoided, could result in death or serious injury. |
⚠ CAUTION | Low-level hazard | Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury. |
NOTICE | Information | Highlights and supplements text, or provides skills and methods to solve product-related problems. |
1.3 Updates
The latest document contains all updates made in earlier issues. Current version: V1.0, dated 2021-10-30 (First Issue).
2 Product Introduction
The SolarGo App is a mobile application designed to communicate with GoodWe inverters via Bluetooth, Wi-Fi, or GPRS modules. Its commonly used functions include:
- Checking operating data, software version, and alarms.
- Setting grid parameters and communication parameters.
- Performing equipment maintenance.
2.1 Applicable Inverter Model
The SolarGo App is compatible with DNS, SDT G2, MT G2, SMT, and HT series inverters. To verify compatibility, enter the equipment Serial Number (SN) in the app.
Image Description: A screenshot of the SolarGo app's 'Device list' showing 'No device found' and a prompt to refresh. Another screen shows 'Suggestions' for troubleshooting connection issues. A third screen shows 'Support Device List' and a prompt to enter the device SN.
2.2 Downloading and Installing the App
Ensure your mobile phone meets the following requirements:
- Operating System: Android 4.3 or later, iOS 9.0 or later.
- Internet access.
- Supports WLAN or Bluetooth.
Method 1: Search for "SolarGo" in Google Play (Android) or the App Store (iOS) to download and install the app.
Method 2: Scan the provided QR code to download and install the app.
NOTICE: After installation, the app may automatically prompt users to update to the latest version.
2.3 App Connection
Once the DC side of the inverter is powered on, the app can connect to it. The connection process is illustrated as follows:
Diagram Description: An illustration showing a solar inverter connected wirelessly (via Bluetooth or Wi-Fi, indicated by signal waves) to a smartphone. The connection range is specified as less than 10 meters horizontally and less than 5 meters vertically. An arrow indicates the connection flow from the inverter to the smartphone.
2.4 Setting Language
Step 1: Select the desired language from the app's language settings based on your preference.
Image Description: A screenshot of the SolarGo app showing a language selection screen with options like English, Español, Čeština, Italiano, Deutsch, Chinese, 日本語, and ViệtName.
2.5 Log In
Step 1: Select the connection method based on your communication module type:
- Tap WiFi & Bluetooth if using a Wi-Fi, LAN, or Bluetooth module.
- Tap GPRS if using a GPRS or 4G module.
Image Description: Screenshots showing the selection between Wi-Fi & Bluetooth and GPRS connection types.
Step 2: Log in as either an Owner or an Installer.
Image Description: A screenshot of the SolarGo app login interface, showing fields for username/password and options to log in as 'Owner' or 'Installer'. It also displays initial password information for different connection types.
Initial Passwords:
- Bluetooth/Wi-Fi: 1234
- 4G: Automatically filled in.
- GPRS: The last 4 digits of the inverter's barcode.
NOTICE: For security, it is recommended to change the initial password immediately after the first login and periodically thereafter. Keep your new password secure.
Image Description: A screenshot of the SolarGo app dashboard displaying inverter status, power output, and daily energy generation.
3 App Operations
NOTICE: UI screenshots in this manual are based on SolarGo App V4.0.2 and may differ in future versions. Parameter display may also vary by inverter model. Always refer to the app and inverter user manual for complete product functions and features.
3.1 Checking Information (Owner/Installer)
3.1.1 Checking Operating Data
Step 1: On the Home page after logging in, check the current Power and Power Generation.
Step 2: Navigate to Home > Parameters to view real-time operating data.
Image Description: Screenshots showing the SolarGo app's 'Home' screen with power and generation data, and the 'Parameters' screen displaying detailed operating data (DC voltage/current, AC voltage/current/frequency) and version information (Firmware version, Model name).
3.1.2 Checking Alarm
Step 1: Tap Home > Parameters > Alarm to view any active alarms.
Image Description: A screenshot of the SolarGo app's 'Alarm' screen showing logged alarms with timestamps and error codes.
3.1.3 Checking Version Information
Step 1: Tap Home > More > Version to access version details.
No. | Parameters | Description |
---|---|---|
1 | WiFi module Version | The version of the WiFi module connected to the inverter. |
2 | Firmware Version | The software version of the inverter. |
3 | App Version | The software version of the SolarGo App. |
3.1.4 Checking Contact Information
Step 1: Tap Home > More > Contact to find contact details.
Image Description: A screenshot of the SolarGo app's 'Contact Information' screen displaying contact details for GoodWe (Greece), including email addresses and phone numbers for service and sales.
3.2 Setting the Basic Information (Owner/Installer)
Step 1: Navigate to Home > More > Basic Setting to configure basic parameters according to the inverter's location and application scenario.
Step 2 (Optional): Tap Export to save default parameter values after selecting a safety code.
Image Description: Screenshots of the 'Basic Setting' screen showing fields for Safety Code, Time, Password, Grid Type, Shadow Scan, COM Address, PLC Setting, and Router Connection. Another screen shows exported parameters like Nominal AC Voltage, Max/Min AC Voltage, Max/Min Frequency, Reconnection Time, and Anti-Islanding status.
No. | Parameters | Description |
---|---|---|
1 | Safety Code | Sets the safety country to comply with local grid standards and the application scenario. Default parameters vary by safety code. |
2 | Time | Sets the inverter's time according to the local time zone. Supports automatic calibration and manual setting. |
3 | Password | Allows changing the login password. Keep the new password secure and contact after-sales service if forgotten. |
4 | Grid Type | Selects the grid type (e.g., star grid, delta grid). |
5 | Shadow Scan | Enables shadow scan functionality if PV panels are shaded. |
6 | COM Address (RS485) | Sets parameters for RS485 communication, including the communication address. Protocol type and Baud rate are for viewing only. |
7 | PLC Setting | Configures settings for the connected box-type transformer. |
8 | Router Connection | Configures router settings. For static IP, disable DHCP and manually enter IP, Subnet Mask, and Gateway. For dynamic IP, enable DHCP for automatic IP assignment and registration. |
3.3 Setting the Grid Parameters (Installer)
Step 1: Navigate to Home > More > Advanced Setting > Grid Parameters Setting to configure grid parameters.
Step 2: Enter parameters based on actual needs and tap '✓'. Settings will be applied successfully.
Image Description: A screenshot of the 'Grid Parameters Setting' screen showing adjustable parameters like Max. AC Voltage, Min. AC Voltage, Max. Frequency, Min. Frequency, and Reconnection Time, with input ranges and current values.
No. | Parameters | Description |
---|---|---|
1 | Max. AC Voltage | The inverter will not connect to the grid if the AC voltage is below this maximum threshold. |
2 | Min. AC Voltage | The inverter will not connect to the grid if the AC voltage is above this minimum threshold. |
3 | Max. Frequency | The inverter will not connect to the grid if the AC frequency is below this maximum threshold. |
4 | Min. Frequency | The inverter will not connect to the grid if the AC frequency is above this minimum threshold. |
5 | Reconnection Time | The time interval before the inverter reconnects to the grid after utility grid voltage and frequency have recovered. |
3.4 Setting the Protection Parameters (Installer)
NOTICE: Set parameters according to the grid company's requirements. Do not change parameters without prior consent from the grid company.
Step 1: Navigate to Home > More > Advanced Setting > Grid Parameters Setting > Level 1&2 Protection.
Step 2: Select 'Protection Level' to configure parameters for Level 1 or Level 2 protection.
Step 3: Enter parameters based on actual needs and tap '✓'. Settings will be applied successfully.
Image Description: A screenshot of the 'Level 1 & 2 Protection' screen showing options to set Overvoltage Threshold, Overvoltage Trip Time, Undervoltage Threshold, Undervoltage Trip Time, Overfrequency Threshold, and Overfrequency Trip Time for Level 1.
No. | Parameters | Description |
---|---|---|
1 | Overvoltage Threshold 1 | Sets the Level 1 overvoltage protection threshold value. |
2 | Overvoltage Trip Time 1 | Sets the Level 1 overvoltage protection tripping time. |
3 | Undervoltage Threshold 1 | Sets the Level 1 undervoltage protection threshold value. |
4 | Undervoltage Trip Time 1 | Sets the Level 1 undervoltage protection tripping time. |
5 | Overfrequency Threshold 1 | Sets the Level 1 overfrequency protection threshold value. |
6 | Overfrequency Trip Time 1 | Sets the Level 1 overfrequency protection tripping time. |
7 | Underfrequency Threshold 1 | Sets the Level 1 underfrequency protection threshold value. |
8 | Underfrequency Trip Time 1 | Sets the Level 1 underfrequency protection tripping time. |
9 | 10 Minute Overvoltage Threshold | Sets the 10-minute overvoltage protection threshold value. |
10 | Overvoltage Threshold 2 | Sets the Level 2 overvoltage protection threshold value. |
11 | Overvoltage Trip Time 2 | Sets the Level 2 overvoltage protection tripping time. |
12 | Undervoltage Threshold 2 | Sets the Level 2 undervoltage protection threshold value. |
13 | Undervoltage Trip Time 2 | Sets the Level 2 undervoltage protection tripping time. |
14 | Overfrequency Threshold 2 | Sets the Level 2 overfrequency protection threshold value. |
15 | Overfrequency Trip Time 2 | Sets the Level 2 overfrequency protection tripping time. |
16 | Underfrequency Threshold 2 | Sets the Level 2 underfrequency protection threshold value. |
17 | Underfrequency Trip Time 2 | Sets the Level 2 underfrequency protection tripping time. |
3.4.1 Setting the QU Curve
Step 1: Navigate to Home > More > Advanced Setting > Curve Settings > QU Curve.
Step 2: Enter parameters based on actual needs and tap '✓'. The inverter will adjust reactive power to apparent power ratio in real-time according to the actual grid voltage to rated voltage ratio.
Diagram Description: A graph illustrating the QU Curve, with the Y-axis representing Reactive Power (Q/Srated %) and the X-axis representing Inverter Voltage (V). The curve shows different points (U1, Q1; U2, Q2; U3, Q3; U4, Q4) defining the reactive power output at various voltage levels.
No. | Parameters | Description |
---|---|---|
1 | QU Curve | Enables the QU Curve when required by local grid standards and requirements. |
2 | Un | The percentage of actual voltage to the rated voltage at Vn point (n=1, 2, 3, 4). Example: Un=90 means V/Vrated%=90%. |
3 | Qn | The percentage of reactive output power to the apparent power at Vn point (n=1, 2, 3, 4). Example: Qn=48.5 means Q/Srated%=48.5%. |
3.4.2 Setting the PU Curve
Step 1: Navigate to Home > More > Advanced Setting > Curve Settings > PU Curve.
Step 2: Enter parameters based on actual needs and tap '✓'. The inverter will adjust active output power to apparent power ratio in real-time according to the actual grid voltage to rated voltage ratio.
Diagram Description: A graph illustrating the PU Curve, with the Y-axis representing Active Power (P/Prated %) and the X-axis representing Inverter Voltage (V). The curve shows different points (U1, P1; U2, P2; U3, P3; U4, P4) defining the active power output at various voltage levels.
No. | Parameters | Description |
---|---|---|
1 | PU Curve | Enables the PU Curve when required by local grid standards and requirements. |
2 | Un | The percentage of actual voltage to the rated voltage at Vn point (n=1, 2, 3, 4). Example: Un=90 means V/Vrated%=90%. |
3 | Vn Active Value | The percentage of the output reactive power to the apparent power at Vn point (n=1, 2, 3, 4). Example: Vn Active Value=48.5 means Q/Prated%=48.5%. |
3.4.3 Setting Cos φ Curve
Step 1: Navigate to Home > More > Advanced Setting > Curve Settings > cos φ Curve.
Step 2: Enter parameters based on actual needs and tap '✓'. The inverter will adjust active output power to apparent power ratio in real-time according to the actual grid voltage to rated voltage ratio.
Diagram Description: A graph illustrating the Cos φ Curve, with the Y-axis representing Active Power (P/Prated %) and the X-axis representing Power Factor (cos φ). The curve shows different points (A, B, C) defining the power factor at various active power levels.
No. | Parameters | Description |
---|---|---|
1 | Cos φ Curve | Enables the Cos φ Curve when required by local grid standards and requirements. |
2 | Point A/B/C Power | The percentage of the inverter output active power to the rated power at point B. |
3 | cos φ for Point A/B/C | The power factor at point A/B/C. |
7 | Lock-in Voltage | When the grid voltage is between Lock-In Voltage and Lock-Out Voltage, the voltage meets Cos φ curve requirements. |
8 | Lock-out Voltage | Defines the upper limit of the voltage range for Cos φ curve compliance. |
9 | Lock-out Power | The Cos φ curve will not function if the output active power to rated power ratio is lower than this value. |
3.5 Setting the Power Limit Parameters (Installer)
Step 1: Navigate to Home > More > Advanced Setting > Power Limit Settings.
Step 2: Enter parameters based on actual needs and tap '✓'. Settings will be applied successfully.
Image Description: A screenshot of the 'Power Limit Setting' screen showing options for Export/Power Limit, Mode, Export Power, External CT Ratio, and Export Power Limit Protection.
No. | Parameters | Description |
---|---|---|
1 | Export/Power Limit | Enables Export/Power Limit functionality as required by local grid standards. |
2 | Mode | Selects the power limiting mode (single-phase or three-phase) based on country/region requirements. |
3 | Export Power | Sets the maximum power fed into the utility grid. |
4 | External CT Ratio | Sets the ratio of the primary current to the secondary current of the external Current Transformer (CT). |
5 | Export Power Limit Protection | If enabled, the inverter will stop grid tying if the export power limit fails. |
3.6 Set the AFCI Detection Parameters (Installer)
Step 1: Navigate to Home > More > Advanced Setting > AFCI Detection.
Image Description: A screenshot of the 'AFCI Detection' screen showing options to enable/disable AFCI Detection, clear AFCI alarms, and perform a self-check.
No. | Parameters | Description |
---|---|---|
1 | AFCI Detection | Enables or disables the Inverter ARC function, which is optional and off by default. |
2 | Clear AFCI alarm | Clears recorded ARC Faulty alarms. |
3 | Self-check | Tap 'Start' to check if the AFCI function is operating normally. |
3.7 Setting Other Parameters (Installer)
Step 1: Navigate to Home > More > Advanced Setting > Other Setting.
Diagram Description: A graph illustrating 'Soft Ramp Up' with the Y-axis representing Power (P/Srated %) and the X-axis representing Time (min). It shows how output power increases gradually over time.
No. | Parameters | Description |
---|---|---|
1 | Power Factor | Sets the inverter's power factor based on the current situation. |
2 | Reactive Power | Sets the reactive power value of the inverter. |
3 | Soft Ramp Up | Standards in some regions require the inverter to derate active power following a specific slope. |
4 | Initial Ramp-Up Rate | Indicates the percentage of incremental output power per minute when the inverter is powered on for the first time. Example: Setting to 10 means a start-up slope of 10% Prated/min. |
5 | Reconnect Ramp Up Rate | Indicates the percentage of incremental output power per minute based on local requirements when the inverter is not powered on for the first time. Example: Setting to 10 means a reconnect slope of 10% P/Srated%/min. |
6 | ISO | Indicates the PV-PE insulation resistance threshold value. An IOS fault occurs if the detected value is below the set value. |
7 | LVRT | With LVRT enabled, the inverter remains connected to the utility grid during short-term low voltage events. |
8 | HVRT | With HVRT enabled, the inverter remains connected to the utility grid during short-term high voltage events. |
3.8 Setting Auto Test Parameters (Installer)
Step 1: Navigate to Home > More > Advanced Setting > Auto Test to configure the parameters.
Image Description: A screenshot of the 'Auto Test' screen displaying inverter details (SN, Model Name, Firmware Version, Safety Code) and various test parameters and results for AC voltage and frequency.
3.9 Device Maintenance (Installer)
3.9.1 Starting/Halting the Grid
Step 1: Navigate to Home > More > Device maintenance > Grid to start or halt the grid connection.
Image Description: A screenshot of the 'Grid switch' interface showing 'Start' and 'Halt' buttons.
3.9.2 Upgrading the Firmware
Requirements:
- The upgrade patch must be obtained from the dealer or after-sales service.
- Duplicate the upgrade patch to the smartphone for the Android system.
Step 1: Navigate to Home > More > Device maintenance > Firmware upgrade to update the firmware version.
Image Description: A screenshot showing the 'Firmware Upgrade' menu with options for 'DSP Upgrade' and 'ARM Upgrade', and a button to 'Select Firmware'.
4 Troubleshooting
No. | Fault | Cause | Solution |
---|---|---|---|
1 | Cannot install the App | 1. Smart phone operating system version is too low. 2. Smart phone prevents installing the app. |
1. Upgrade the phone operating system. 2. Go to Settings > Security > Install apps from external sources on your smartphone. |
2 | Communication failure | The communication distance between the smartphone and the inverter is out of range. | Place the smartphone near the inverter and reconnect the Wi-Fi module. |
3 | Fail to obtain the data during operation. | The communication between the inverter and Wi-Fi is interrupted. | Ensure the Wi-Fi module is working normally. Refresh the device list. If the signal is still missing, restart the app. |
4 | The connection between the inverter and WiFi is interrupted. | The communication between the inverter and Wi-Fi is interrupted. | Ensure the Wi-Fi module is working normally. Refresh the device list. If the signal is still missing, restart the app. |
5 | The WiFi signal is not included in the app device list. | The app is not connected to the WiFi signal. | 1. Make sure that the WiFi module works normally. 2. Refresh the device list. If the signal is still missing, restart the app. |
5 Appendix
5.1 Safety Country
This section lists safety codes applicable to various countries and regions.
Europe
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | Austria | 2 | Belgium |
3 | Bulgaria | 4 | CEI_016 |
5 | Cyprus | 6 | Czech |
7 | Denmark | 8 | France |
9 | French_50Hz | 10 | French_60Hz |
11 | G98_1 | 12 | G99_1 |
13 | Germany | 14 | Germany_B |
15 | Greece Mainland | 16 | Holland |
17 | Holland_2 | 18 | Holland_MV |
19 | Hungary | 20 | Ireland |
21 | Italy | 22 | NorthIreland |
23 | Poland | 24 | Poland_MV |
25 | Romania | 26 | Slovakia |
27 | Spain | 28 | Spain_MV |
29 | SpainIsland | 30 | Sweden |
31 | Sweden_MV | 32 | Switzerland |
33 | VDE4110 |
Global
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | 50Hz_LV | 2 | 50Hz Grid |
3 | 60Hz_LV | 4 | 60HzGrid |
North America
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | Barbados | 2 | IEEE_1547_208 |
3 | IEEE_1547_220 | 4 | IEEE_1547_240 |
5 | IEEE1547_380V |
South America
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | Argentina | 2 | Brazil |
3 | Brazil_LV |
Oceania
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | AU_Endeavour | 2 | AU_Energex |
3 | AU_Ergon | 4 | AU_Horizon |
5 | AU_MicroGrid | 6 | AU_VIC |
7 | AUAusgrid | 8 | AUEssential |
9 | AUSAPN | 10 | AustralianA |
11 | AustralianB | 12 | AustralianC |
13 | AustralianL | 14 | AUWAPN |
15 | Energex30K | 16 | Ergon30k |
17 | GreenGrid | 18 | NewZealand |
Asia
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | China | 2 | ChinaStation |
3 | CHNspecialHigh | 4 | CHNspecialMedium |
5 | DEWA_MV | 6 | DEWAL |
7 | HongKong | 8 | IEC61727_50Hz |
9 | India | 10 | India_60HZ |
11 | IndiaHigher | 12 | Israel |
13 | JP_50Hz | 14 | JP_60Hz |
15 | Korea | 16 | Philippines |
17 | SriLanka | 18 | Taiwan |
19 | ThailandM | 20 | ThailandP |
Africa
No. | Safety Code | No. | Safety Code |
---|---|---|---|
1 | Africa | 2 | Mauritius |
5.2 Australia Safety Regulations
For the Australian market, to comply with AS/NZS 4777.2:2020, select the appropriate Australia Region (A, B, or C). Consult your local electricity grid operator for the correct region selection. Selecting Region B automatically loads all region B setpoints for volt-watt, volt-var, underfrequency, and overfrequency parameters.
Volt-var response set-point values
Region | Default value | |||
---|---|---|---|---|
U1 | U2 | U3 | U4 | |
Australia A | Voltage: 207V Inverter reactive power level (Q) % of Srated: 44% supplying |
Voltage: 220V 0% |
Voltage: 240V 0% |
Voltage: 258V 60% absorbing |
Australia B | Voltage: 205V Inverter reactive power level (Q) % of Srated: 30% supplying |
Voltage: 220V 0% |
Voltage: 235V 0% |
Voltage: 255V 40% absorbing |
Australia C | Voltage: 215V Inverter reactive power level (Q) % of Srated: 44% supplying |
Voltage: 230V 0% |
Voltage: 240V 0% |
Voltage: 255V 60% absorbing |
New Zealand | Voltage: 207V Inverter reactive power level (Q) % of Srated: 60% supplying |
Voltage: 220V 0% |
Voltage: 235 V 0% |
Voltage: 244 V 60% absorbing |
Allowed range | Voltage: 180 to 230 V Inverter reactive power level (Q) % of Srated: 30 to 60% supplying |
Voltage: 180 to 230 V 0% |
Voltage: 230 to 265 V 0% |
Voltage: 230 to 265 V 30 to 60% absorbing |
NOTE 1: Inverters may operate at a reactive power level with a range up to 100% supplying or absorbing.
NOTE 2: Australia C parameter set is intended for application in isolated or remote power systems.
Volt-watt response default set-point values
Region | Default value | |
---|---|---|
U3 | U4 | |
Australia A | Voltage: 253V Inverter maximum active power output level (P) % of Srated: 100% |
Voltage: 260V 20% |
Australia B | Voltage: 250V Inverter maximum active power output level (P) % of Srated: 100% |
Voltage: 260V 20% |
Australia C | Voltage: 253V Inverter maximum active power output level (P) % of Srated: 100% |
Voltage: 260V 20% |
New Zealand | Voltage: 242 V Inverter maximum active power output level (P) % of Srated: 100% |
Voltage: 250V 20% |
Allowed range | Voltage: 235 to 255 V Inverter maximum active power output level (P) % of Srated: 100% |
Voltage: 240 to 265 V 0% to 20% |
NOTE: Australia C parameter set is intended for application in isolated or remote power systems.
Passive anti-islanding voltage limit values
Protective function | Protective function limit | Trip delay time | Maximum disconnection time |
---|---|---|---|
Undervoltage 2 (V << ) | 70 V | 1 s | 2 s |
Undervoltage 1 (V < ) | 180 V | 10 s | 11 s |
Overvoltage 1 (V > ) | 265 V | 1 s | 2 s |
Overvoltage 2 (V >>) | 275V | 0.2 s |
Passive anti-islanding frequency limit values
Region | Australia A | Australia B | Australia C | New Zealand | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Protective function limit value | Trip delay time | Maximum disconnection time | Protective function limit value | Trip delay time | Maximum disconnection time | Protective function limit value | Trip delay time | Maximum disconnection time | Protective function limit value | Trip delay time | Maximum disconnection time | |||||
Underfrequency 1(F < ) | 47 Hz | 1 s | 2 s | 47 Hz | 1 s | 2 s | 45 Hz | 5 s | 6 s | 45 Hz | 1 s | 2 s | ||||
Over-frequency 1 (F > ) | 52 Hz | 0.2s | 52 Hz | 0.2s | 55 Hz | 0.2s | 55 Hz | 0.2s |