PLC和变频器连接应用时，由于二者涉及到用弱电控制强电，因此，应该注意连接时出现的干扰，避免由于干扰造成变频器的误动作，或者由于连接不当导致PLC或变频器的损坏。

 高压变频器主 要由控制柜、功率单元柜、变压器柜和旁路柜4部分组成。控制柜作为整个高压变频器的核心部分，对整个系统进行操作及控制。包括对功率单元PWM调制，控制 IGBT通断来输出单相脉冲调制波形、通过主站发出的命令来对整个系统进行操作、故障时候的对整个系统的重要保护以及相关数据信息的显示。鉴于高压变频器 对系统可靠性高，抗干扰性强及扩展性丰富等特点，本主控系统采用台达生产的DVP系列PLC和DOP-B系列触摸屏来参与控制。

    DVP系列可编程逻辑控制器以高速、稳健、高可靠度应用于许多工业自动化机械上；除了具有快速执行逻辑运算、丰富的指令集、多元扩充功能卡及高性价比等 特色外，并且支持多种通讯规范。DVP系列PLC一般具有两个通讯口（ES2除外），COM1是RS232,COM2是RS485，支持ModBus ASCII/RTU通讯格式，通讯速率最高可达115200bps，两通讯口可以同时使用。其提供了针对ModBus ASCII/RTU模式的专用通讯指令，这样在编写通讯程序时就可以大大简化，无需像用串行数据传送指令RS那样要进行复杂的校验码计算和遵循复杂的指令 格式。

    DOP人机界面提供多样化尺寸与色彩的触摸屏幕，并为工业自动化机械提供快速便利的控制功能。此外，全系列产品皆搭配WINOOWs-base人性化编辑软件，使用者可快速编辑图表界面，并可自由设定适合的通讯规范。

Pacific Scientific Servo Controller 121-236 SVG 90S

PACIFIC SCIENTIFIC 1,8' STEP MOTOR E21NSHT-LNF-NS-04

143-429 PACIFIC SCIENTIFIC REMANUFACTURED

Pacific Scientific R33 GENC-HS-ND-NV-00 Servo Motor

PACIFIC SCIENTIFIC E34HRHT-LDS-SS-02 1.8 STEP MOTOR

PACIFIC SCIENTIFIC H21NRHC-LDN-NS-00

PACIFIC SCIENTIFIC 33V82-020-15 500-0009

PACIFIC SCIENTIFIC STEP MOTOR VDE0530-S1 VDE0530S1

PACIFIC SCIENTIFIC N31HRFG-LSS-M2-02 POWER PAC 1.8 DEG. STEP MOTOR

Pacific Scientific R32GENP-R2-NS-VS-00 R32GENPR2NSVS00

PACIFIC SCIENTIFIC F SERIES BRUSHLESS MOTOR PN: F46HENA-R2-NS-VS-00

Pacific Scientific PowerMax II: M21NSXA-LDN-HD-02 Mtr.

Pacific Scientific SRF3736-4983-84-5-56BC-CU DC Motor new

R43GENA-TS-M2-VS-02 PACIFIC SCIENTIFIC REMANUFACTURED

Pacific Scientific Stepper Motor Sigmax E33NRFB-LDN-SS-02 Renco Encoder Stepping

PACIFIC SCIENTIFIC R35KMNC-TS-RC-NV-02 SERVO MOTOR *NEW IN A BOX*

PACIFIC SCIENTIFIC H32NRHP-LNN-NS-00 STEP MOTOR 1.8° 2.16VDC 8.1A

PACIFIC SCIENTIFIC R33GENC-R2-NS-NV-00 Brushless Servo Motor NEW

Stepper step Motor PacSci S Pacific Scientific P2HNRXA-LDN-NS-00 Powermax Lot 6

Pacific Scientific STF3624 Motor ? HP 3600 RPM, STF3624-5604-61-56C

Pacific Scientific Brushless Servo Motor R67GENA-R2-NS-VS-00 168 lb-in

Pacific Scientific Servomotor R43GENA-R2-NS-NV-00

Pacific Scientific Brushless Servo Motor R43HEAA-R2-NS-NV-00

Pacific ScientificSC452-051-06 Servo Drive115/230V 1/3Ph 6/6FLA 50/60Hz! WOW !

PACIFIC SCIENTIFIC SERVO MOTOR 2VM62-020-7 w/TACHOMETER & OPTICAL ENCODER: M98A

Pacific Scientific 6415 Stepper Drive 6415-001-C-N-N lot of 5 165-641501-01 used

Pacific Scientific R46SSNA-SS-NS-NV-02 Brushless servomotor

Pacific Scientific R43SSNA-HS-NS-NV-02 Servo Motor NOS

Pacific Scientific 5345 Microstep Indexer/Servo Controller 1PH 115VAC 2A !

PACIFIC SCIENTIFIC R32GENC-R2-NS-NV-00 Brushless Servo Motor

Pacific Scientific E42HCHT-LNK-NS-00 18 degree Step Motor Bipolar Parallel 7.9A

PACIFIC SCIENTIFIC 2.1KW 3000RPM BRUSHLESS SERVO MOTOR R63GENA-TS-NF-NV-00

Pacific Scientific Brushless Servo Motor R67HEBA-TS-NS

Pacific Scientific Motor & Control Division M21NRXC-LDN-NS-00 Sigmax II Stepping

Pacific Scientific PMA65R-11100-00 Brushless AC Servo Motor 4.2kW 9.7A

Pacific Scientific PowerMax II Mdl: P22NSHA-LNF-NS-03

Pacific Scientific SC453-004-05 _ SC45300405 MC500 Motion Controller 105-050000

Pacific Scientific SigMax 1.8° Step Motor E31NLHT-LNW-NS-00 2.19V 5.4A

PACIFIC SCIENTIFIC SC403-030-T4

Pacific Scientific 1.8 degree Step Motor,E21NRLT-LSS-NS-02,1500 rpm,D3 MM@234

Pacific Scientific, S22GSNA-RNVM-03 Brushless servo

Pacific Scientific Brushless Servo Motor R65GMNA-TS-LG-NV-00 *Tested*

PACIFIC SCIENTIFIC R35JENC-R2-NS-NV-00 Brushless Servo

PACIFIC SCIENTIFIC R32GENC-R2-NS-NV-00 Brushless Servo

Pacific Scientific PowerMax II: M22NRXA-JDF-M1-00 Mtr.

PACIFIC SCIENTIFIC 5310 CONTROLLER MODULE (H5)

Pacific Scientific: SRF3744-4266-84-7-56BC Motor

R43GENA-R2-M2-NV-02 PACIFIC SCIENTIFIC REMANUFACTURED

R43GENA-R2-NS-NV-00 PACIFIC SCIENTIFIC REMANUFACTURED

R27SSNA-R1-NS-NV-02 PACIFIC SCIENTIFIC

Pacific Scientific 1.8 Step Motor H31NLHC-LNS-NS-02

SERVO MOTOR Pacific Scientific R32GENC-R2-NS-NV-00 (PRO76)

PACIFIC SCIENTIFIC 33VM62-220-6

PACIFIC SCIENTIFIC 5645-027

PACIFIC SCIENTIFIC NS47671 *NEW IN BOX*

sigma pacific scientific stepping motor 17-2220d200-f033

Pacific Scientific PowerPac Step Motor K31SSFS-LEK-SS-02 w/ Accu-Coder 6310783

Pacific Scientific SigMax 1.8° Unipolar Step Motor E32NRFT-LDW-NS-02 4.83V 3.7A

Pacific Scientific SigMax 1.8° Unipolar Step Motor E32NRFT-LDN-NS-00 4.63V 3.7A

PACIFIC SCIENTIFIC R32GENC-R2-NS-NV-00 PG90-005-051

Pacific Scientific Brushless Servo Motor R65HENA-TS-MZ-NV-00

PACIFIC SCIENTIFIC R43HENA-R2-NS-VS-00 SHAFT 5/8IN 64V/KRPM MOTOR SERVO B210019

Pacific Scientific R24HENA-HA-EB-NV-00 Brushless Servomotor working

PACIFIC SCIENTIFIC H33NSHA-LNN-NS-02 112W 35V-DC 1500RPM STEP MOTOR