PC834-101-N servo drive

Description

PC834-101-N servo drive

PC834-101-N servo drive

Load inertia

From the formula for bandwidth, it is seen that bandwidth changes inversely with total inertia. If the load inertia equals the motor plus resolver inertia, the velocity loop bandwidth will be half the values shown. If the load inertia is ten times the motor plus resolver inertia, the bandwidths will be one eleventh these values. Clearly KVP must be increased to compensate for increased load inertia if bandwidth is to be maintained. Typically, load inertia up to 3(motor + resolver) give acceptable performance without further optimization.

There is no specific answer to the general question “What should the bandwidth be?” In general, the higher the velocity loop bandwidth, the faster the settling time will be and the better the rejection of torque disturbances (increased stiffness). Typically, velocity loop bandwidths range from 30 to 100 Hz. However, too high a bandwidth can lower the damping of resonance in mechanical linkages, causing excessive ringing and/or wear in coupled mechanics. Remember, it is the resulting motion at the end of any mechanical linkages that typically matters, not the response at the motor shaft.

Mechanical resonance is caused by springiness between motor inertia and load inertia. This may result from belts, flexible couplings, or the torsional stiffness of shafts. In general, the stiffer the couplings, the higher the resonance frequency and the easier it is to tune the system for good performance. If the velocity loop breaks into an oscillation at a frequency well above the calculated velocity loop bandwidth, a resonance problem may well exist. A second symptom is that the frequency of oscillation is relatively constant in the presence of changes to ARF0 and ARF1.

PLC
(1) The development from on-off control to sequential control and transportation processing is from bottom to top.
(2) Multiple functions such as continuous PID control, PID in the interrupt station.
(3) A single PC can be used as the master station, and multiple PLCs of the same type can be used as slaves.
(4) It is also possible to have one PLC as the master station and multiple PLCs of the same type as the slave stations, forming a PLC network. The convenience of using a PC as the main station is that when users program, they do not need to know the communication protocol, as long as they write it in the format specified in the manual.
(5) The PLC grid can serve as both an independent DCS/TDCS and a subsystem of DCS/TDCS.
(6) Large systems are the same as DCS/TDCS, such as TDC3000, CENTUMCS, WDPFI, and MOD300.
(7) PLC networks such as Siemens’ SINEC-L1, SINEC-H1, S4 (wrong, remove), S5, S6 (wrong, remove), S7, etc., GE’s GENET, Mitsubishi’s MELSEC-NET, MELSEC-NET/MINI.
(8) Mainly used for sequential control in industrial processes, the new PLC also has closed-loop control function.
(9) Manufacturers: GOULD (USA), AB (USA), GE (USA), OMRON (Japan), MITSUBISHI (Japan), Siemens (Germany), etc.

Model:
4210 Triconex
4211 Triconex
421907-1B
42-30
4256A64G02
4256A84G01
435 * 425 * 60
4351B
4351B Triconex
4351B-J
440-380-220V/4v out
440-500V
440K-T11090
440N-C02068
440R-C23017
440R-E21358
440R-W23222
4414 F/12
443M-C
443M-S
44701A
44702B
44713A
44723A
44736A
44A730240-G01
44A737830-001R04
45C220B
45C922
45C992
45UV5
4603-9101
460A68.23C
462.000.7076.00
467NHP81100
467NHP811DP
469-P1-H1-A1-E
469-P1-HI-A1-EH