SIEMENS 6SE7041-1ES87-1FE0 Frequency Converter

Siemens inverter 6SE7041-1ES87-1FE0 is an important product developed, produced and sold by Siemens, Germany, mainly used to control and adjust the speed of three-phase AC asynchronous motors. This inverter occupies an important position in the inverter market with its stable performance, rich combination functions, high-performance vector control technology, low-speed high-torque output, good dynamic characteristics, super overload capacity, innovative BiCo (internal functional interconnection) function and unparalleled flexibility.

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Product Introduction

The main difference between Siemens S7-400 and 300 is the hot start (WRST) part, and the rest is basically the same. It also has an external battery power interface, which can provide backup power to the RAM when the battery is replaced online. The programming devices mainly include pg720pg740pg760 - which can be understood as a laptop with programming software installed; it can also be done directly with a PC installed with step7 (siemens programming software). The requirements for communication (to program, you must first communicate with the plc's cpu) are mainly the interface: 1. You can install a cp5611 card on the pc - there is an mpi port on it, which can be directly connected with a cable. 2. Add a pc adapter, convert the mpi port to an rs-232 port and connect it to the pc. 3. Add a cp343 card to the plc to give it an ethernet port.

There are thousands of parameters that can be set for Siemens inverters. Only by setting the parameters systematically, appropriately and accurately can the performance of the inverter be fully utilized. The choice of inverter control mode is determined by the torque characteristics of the load. The mechanical load torque characteristics of the motor are determined by the following relationship: p=tn/9550 Where: p——motor power (kw) t——torque (n.m) n——speed (r/min) The relationship between torque t and speed n can be roughly divided into three types according to the type of load (1) constant torque load where the torque does not change much even if the speed changes, such as conveyor belts, cranes, extruders, compressors, etc.

We recycle Siemens 6ES7315-2EH14-0AB0 at a high price, Siemens 6ES7318-3EL01-0AB0 at a high price, Siemens 6ES7317-2EK14-0AB0 at a high price.

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SIEMENS programmable controller

1. SIMATICS7 series PLC: S7-200, S7-1200, S7-300, S7-400, ET-200

2. Logic control module LOGO! 230RC, 230RCO, 230RCL, 24RC, 24RCL, etc.

3. SITOP DC power supply 24VDC1.3A, 2.5A, 3A, 5A, 10A, 20A, 40A can be connected in parallel.

4. HMI touch screen TD200TD400CK-TPOP177TP177, MP277MP377,

Setting of general control parameters

 

According to the circuit diagram, first meet the conditions of external control such as emergency stop and brake of the module, and then power on the module. If there is no problem, restore the factory value, and set the system parameters according to the startup steps of the Siemens DC speed control device manual (the motor should be unloaded at this time):

? Restore factory values

? Set pulse encoder

? Select control mode

? Input and output settings

? Given selection

? Protection parameter setting

 

Optimize operation

Verify the correctness of the code disk

Perform optimization settings: P83=2 Change the speed feedback to encoder, and let the motor run after the change to ensure that there are no other faults.

Perform verification of current loop self-optimization

P51=25 Current loop optimization, optimize and modify the basic parameters of the armature and excitation current loops, and do it several times to observe whether the parameters are the same.

Current loop optimization changes the following parameters: P110 armature resistance, P111 armature inductance, P112 excitation resistance, P155 armature regulator P gain, P156 armature regulator I integral, P255 excitation regulator P gain, P256 excitation regulator I integral, P826 natural commutation time

 

Communication settings

P918 station address for communication with PLC

P927=7 parameterization enable (39 master-slave control)

U734.1=K32 the first word transmitted to PLC, usually status word 1

U734.2=167 speed

U734.3=117 armature current

U734.4=142 torque

Discuss other data to be transmitted with PLC

Copy parameter group P55=112; P57=112

Setting remote control is just an example here, the actual situation needs to be confirmed with PLC Negotiation

P648.2=3001 When in remote control, the control word is passed through the first word of the PLC

P644.2=3003 When in remote control, the speed setting is passed through the third word

 

The production process of the dedicated line reactor for the inverter requires the coil and the iron core of the dedicated line reactor for the inverter to be assembled into one, and then go through the process of pre-baking → vacuum varnishing → hot baking and curing.

The dedicated line reactor for the inverter adopts H-class impregnation varnish to firmly combine the coil and the iron core of the reactor, which not only greatly reduces the noise during operation, but also has an extremely high heat resistance level, which can ensure that the reactor can run safely and noiselessly at high temperatures.

 

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