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B505

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B505

The B505 is a powerful general purpose inverter offering a practical PID regulator, simple PLC, programmable input and output terminal control, remote synchronous control, multiple frequency options and a wide range of other powerful features.
The B505 uses advanced magnetic flux vector control technology to achieve high performance motor control despite being insensitive to motor parameters.
It also has 7 programmable digital inputs, 2 relay outputs, up to 25 relay output options, 2 analogue outputs, up to 16 segment speed control and a maximum of 47 terminal function options.
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Product description

The universal vector controller for frequency control of B505 series products.


Features

Programmable digital input: 7 digital input terminals, one of which supports high-speed pulse input up to 100kHz

Programmable analog input: AI1, AI2: 0V~10V voltage input or 4mA~20mA current input

Open collector output: 1 output

Relay output: 2 outputs

Analog output: 2 outputs, AO1 supports 0mA~20mA current output or 0V~10V voltage output, AO2 supports 0mA~20mA current output


Product advantages

• Frequency setting methods: digital setting, analog setting, pulse setting, serial communication setting, multi-speed setting, simple PLC setting, PID setting, etc., which can realize the combination of settings and mode switching sleep Function: Automatic sleep without water, better energy saving effect

• Built-in PID control function

• Simple PLC, multi-stage speed control function: control terminals to achieve up to 16-stage speed control

• Traverse Control Function

• Instantaneous power failure non-stop function

• Speed tracking and restart function: realize smooth start without impact on the rotating motor

• User-Defined Key Function: user-defined multi-function shortcut keys

• Automatic voltage adjustment function: when the grid voltage changes, it can automatically keep the output voltage constant

• Provides multiple fault protection functions: overcurrent, overvoltage, undervoltage, overtemperature, phase loss, overload, and other protection functions


Product parameters

Input voltage range: 380V±15%

Input frequency range: 47Hz~63Hz

Output voltage range: 0V~input voltage

Output frequency range: 0Hz~600Hz

Control mode: vector control without PG, V/F control, torque control (vector control without PG)

Overload capacity:

G type machine: 150% rated current 60s; 180% rated current 3s

P type machine: 120% rated current 60s; 135% rated current 3s

Starting torque: G type machine: 0.5Hz/150% (SVC); P type machine: 0.5Hz/100%

Speed regulation ratio: 1:100 (SVC)

Speed control accuracy: ±0.5% of maximum speed (SVC)

Carrier frequency: 0.5kHz~16.0kHz


Overall product

                    

Size of 0.75~37KW model                             Size of 45~200KW model

model

(kW)


A(mm)

B(mm)

H(mm)

W(mm)

D(mm)

Installation aperture (mm)

installation size

dimension


0.75~2.2

114

174

186

126

163.8

5

4~5.5

114

174

186

126

185

5

7.5

129

242

258

145

176.5

5.5

11~15

146

301

313

161

210

6

18.5~22

185

330

342

200

200.5

6

30~37

233

381

400

251

213

6

45~110

199

534

554

336

327.5

9

132~200

360

848

870

503

362

11


Company Contact

Guangzhou Bedford Electrical Equipment Co., Ltd.

Address: 1st Floor Building C, No.2, Taowan Industry Zone, Liwan District, Guangzhou, China.

Phone: +86 20-81561021

Fax: +86 20-81891390

Zip code: 510370

Service Hotline: 1350002099 18664751963

Email: bedford.cn@gmail.com


Cautions

Dangers

1. Do not disassemble or modify, otherwise it may cause electric shock, fire, or injury.

2. Do not open the cover during power-on.

3. Do not put wires, thin rods, filaments, and other items into or fall into the controller to avoid short circuit or electric shock hazard.

4. Do not splash water or other liquids.


Warnings

1. Do not perform voltage withstand test on the internal components of the controller;

2. Never connect the power cord to the output terminals U, V, W;

3. If the circuit board components inside the controller are affected or damaged by static electricity, please do not touch them casually;

4. The motor and controller should match the power supply specifications, otherwise it may cause abnormal operation or even burn out the equipment;

5. If there is severe vibration, noise, heat or odor during the initial operation, turn off the power immediately and contact the supplier or service center;

7. Do not expose the product directly to outdoor environments such as sunlight, frost, snow, etc., to avoid deformation or electric shock damage.


Troubleshooting

The following fault conditions may be encountered during the use of the controller, please refer to the following methods for simple fault analysis:

No display after power-on:

1. Use a multimeter to check whether the input power of the controller is consistent with the rated voltage of the controller. If there is a problem with the power supply, please check and eliminate it.

2. Check whether the CHARGE lamp is on. If this light is on, the fault may be in the switching power supply. Please seek service.

After power on, the power air switch trips:

1. Check whether there is a grounding or short circuit between the input power

supplies and eliminate the problem.

2. Check whether the rectifier bridge has been broken down, if it is damaged, seek service.

The motor does not rotate after the controller is running

1. Check whether there is a balanced three-phase output among U, V, and W. If there is, the motor circuit or itself is damaged, or the motor is blocked due to mechanical reasons. Please exclude.

2. There is output but the three phases are not balanced. It may be because the

controller driver board or output module is damaged, please seek service.

3. If there is no output voltage, the drive board or output module may be damaged, please seek service.

Power on the controller shows normal, after running, the power air switch tripped:

1. Check whether there is a short circuit between the output modules. If yes, please seek service.

2. Check whether there is a short circuit or grounding between the motor leads. If so, please exclude it.

3. If the trip occurs occasionally and the distance between the motor and the controller is relatively long, consider adding an output AC reactor.


After-sales service

1. The warranty is limited to the inverter itself. Within 12 months from the date of purchase, the inverter will provide free maintenance services if the product is damaged due to malfunctions caused by the product itself within 12 months from the date of purchase.

2. During the warranty period, if something happens, our company will charge a certain amount of maintenance fee depending on the situation.

A. Failure to strictly follow the "Instruction Manual" or exceed the standard requirements in an environment that does not meet the requirements of the "Instruction Manual".

B. Failure caused by self-repair or modification without permission.

C. Faults caused when the inverter is used for abnormal functions.

D. The inverter is damaged due to incorrect wiring.

E. Damage caused by improper storage, fall or other external factors after purchase.

F. Failures caused by natural disasters such as abnormal voltage, lightning, fire, water mist, metal dust, gas corrosion, earthquakes, storms, or disaster-related causes.

G. Tear off the product identification (such as nameplate, etc.) without authorization; the serial number of the body does not match the warranty card.

3. If you have any questions, please contact the agent or contact our company directly.

4. For machines beyond the warranty period, our company will also provide lifetime paid maintenance services.

l
Phone:
+86-020-81561021
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9:00-18:00
About us

Bedford water supply equipment is widely used in high-rise residential buildings, villas, schools, hospitals, large communities, air source heat pump hot and cold water systems, solar water heating systems, water treatment, energy-saving water supply systems for buildings, and other occasions. ​​​​​​​

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