Solutions

EM15 Series Frequency Converter Replaces Yaskawa H1000 Series Lifting Application.

Publish Time: 2025-03-25

1. EM15-G3-090 replaces the technical requirements for on-site control of the Yaskawa H1000 crane:

1) When starting the frequency converter, it is required to have a large low-frequency starting torque and a smooth start.

2) Start time is 3.0s (0-maximum frequency 100HZ), stop time is 5.0s (maximum frequency 100HZ-0HZ)

3) Requirements for shutdown: Accurate positioning and no hook slipping.

4) The main lifting motor requires four speed controls, starting forward and reverse at 15HZ. The first section is 30HZ, the second section is 60HZ, and the third section is 90HZ to improve on-site operation efficiency.

5) The lifting site environment is harsh, requiring the frequency converter to have a wide voltage range, withstand harsh dust, high temperature, and other tests.

2. Principles of on-site control

1) When starting, DO1 outputs a collector signal to the small intermediate relay, which then controls the motor's holding brake (opening the holding brake during operation and closing the holding brake when stopped)

2) Braking control during the descent process of the main crane: The equipment undergoes frequent forward and reverse rotation, acceleration and deceleration, and braking operation during startup. Therefore, the frequency converter often switches between the 1.3 and 2.4 quadrants, especially during heavy load descent when the motor is dragged by a heavy object to maintain its speed in line with the rotating magnetic field and exceed the synchronous speed. At this time, the motor changes from an electric state to a power generation state, and excessive regenerative energy is fed back into the frequency converter by the stator, This leads to an increase in the voltage of the inverter bus, and at this time, the regenerative energy is consumed by the inverter P-external braking unit and resistor.

3) The combination of DI1-D15 has a total of four speeds, and the on-site requirement is to operate at a maximum of 90HZ to improve usage efficiency and ensure that the vehicle does not slip.

3. Field application wiring diagram：

4. Set parameters.

NO.	Code	Set parameter	Discreption	Remark
1	b0-02	1	Terminal control
2	b0-03	6	Multi-function
3	b0-13	100	Maximum frequency
4	b0-15	100	Frequency upper limit
5	b0-21	7	Acceleration time
6	b0-22	7	Deceleration time
7	b3-06	37	Fault reset
8	b4-03	17	Frequency-level detection FDT1 output	Relay controlled holding brake output
9	b4-22	2.00	Frequency detection value 1 (FDT1)	Brake output frequency, exceeding the set value output
10	b4-23	0.00	Frequency detection hysteresis 1 (FDT hysteresis 1)
11	C1-00	20	1 speed
12	C1-01	30	2 speed
13	C1-03	40	3 speed
14	C1-07	90	4 speed
15	d0-00	Motor rated power	set according motor nameplate
16	d0-02	Motor rated current
17	d0-04	Motor rated spped

NO.	Code	Set parameter	Discreption	Remark
1	b0-01	0	Vector control
2	d0-00	Motor rated power	Set according motor nameplate	Before self-learning, b0-02 needs to set keyboard control
3	d0-01	Motor rated voltage
4	d0-02	Motor rated current
5	d0-03	Motor rated frequency
6	d0-04	Motor rated speed
Set d0-30=3, press RUN to auto-tuning after displaying TUNE on the screen, and wait for about 15 seconds for auto-tuning to complete
1	b0-02	1	Terminal control
2	b0-03	6	Multi-function
3	b0-13	Set according motor nameplate	Maximum frequency
4	b0-15	Set according motor nameplate	Frequency upper limit
5	b0-21	10	Acceleration time
6	b0-22	10	Deceleration time
7	b3-02	6	Multi-speed 1
8	b4-02	17	Frequency-level detection FDT1 output	Relay controlled holding brake output
9	b4-03	3	Fault output
10	b4-22	2.00	Frequency detection value 1 (FDT1)	Brake output frequency, exceeding the set value output
11	b4-23	0.00	Frequency detection hysteresis 1 (FDT hysteresis 1)	Brake output frequency, exceeding the set value output
12	C1-00	~	Starting frequency	DI1 and COM closed or DI2 and COM closed
13	C1-01	100	High speed frequency
14	A2-05	0	Voltage limit selection is disabled