QZ9000 Series – Industrial Crane and Hoist Inverter

Control Mode

V/F control

Sensorless flux vector control (SVC)

Close-loop vector control (FVC)

Maximum frequency

0～150Hz

Carrier frequency

1kHz～12kHz

The carrier frequency is automatically adjusted based on the load features.

Input frequency resolution

Digital setting:0.01Hz

Analog setting: Maximum frequency x 0.025%

Start torque

G type:0.25Hz/150%(SVC);

0Hz/180% (FVC)

Speed range

1：200 (SVC)

1:1000 (FVC)

Speed stability accuracy

±0.5% (SVC)

±0.02%  (FVC)

Torque control accuracy

±5% (SVC)，±3%  (FVC)

Overload capacity

G Type:60s for 150% of the rated current, 3s for 180% of the rated current.

Torque boost

Auto-boost;

Customized boost: 0.1%~30.0%

Ramp Mode

Straight-line or curve ramp.

Three groups of acceleration/deceleration time with the range of 0.00`6500.0s

Multiple  speeds

It implements up to 8 speeds via terminal states 

Auto voltage regulation (AVR)

It can keep constant output voltage automatically when the mains voltage changes

Over-voltage/over-current stall control

The current and voltage are limited automatically during the running process so as to avoid frequent tripping due to over voltage/over current

Rapid current limit

It helps to avoid frequent over current faults of the inverter.

Torque limit and control

It can limit the torque automatically and prevent frequent over current tripping during the running process. Torque control can be implemented in the FVC mode.

Support for kinds of PG cards

Support for PG cards of resolver, differential, open collector

Instantaneous stop doesn’t stop

The load feedback energy compensates the voltage reduction so that the inverter can continue to run for a short time.

Communication

RS-485，CAN  

Protection mode

Motor short-circuit detection at power-on, input/output phase loss protection, over current protection, over voltage protection, under voltage protection, overheat protection and overload protection

Lifting process control

Inverter built in anti-sway, grab and other complex lifting process control, used for lifting, translation, slewing and other driving in lifting equipment.

Input terminal

Maximum 10 digital input terminals

2 analog input terminals

1 voltage input (only support for 0~10V,)，1 voltage input(0~10V) or current input (4～20mA)

(Different power are with different terminals, see details at circuit description)

Frequency source

Digital setting, analog voltage setting, analog current setting, communication setting, serial port setting.

You can perform switchover in various ways.

Command source

Operation panel/Control terminals/Serial communication port

You can perform switchover between these sources in various ways. 

Output terminal

2 digital output terminals

2 relay output terminals

LED display

It display the parameter

Key locking and function selection

It can lock the keys partially or completely and define the function range of some keys so as to prevent mal-function.

Installation location

Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt.

Altitude

Lower than 1000m

Ambient temperature

－10℃~＋40℃（de-rated if the ambient temperature is between 40℃~50℃）

Humidity

Less than 95%RH，without condensing

Vibration

Less than 5.9m/s2（0.6g）

Storage temperature

－20℃~＋60℃