MPM-B2152M-2J72AA

MPM-B2152M-2J72AA

MPM-B2152M-2J72AA

MPM-B2152M-2J72AA

  多泵供水是 常见的变频供水方案。多泵建筑供水系统普遍采用变频器循环控制方式。多泵控制思路是一拖多工变频结合复合式变流量变频供水。在小流量用水时工况，

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变频器带一台水泵运行,随用水量的变化,调整水泵的转速,实现恒压供水；当用水量增大,变频器达到50HZ时,变频器发出指令,使该变频泵切换到工频,同时使变频器带动下一台水泵变频软启动运行。随用水流量增大,以后各台水泵的软启动依次类推。当用水量减小时,先停转为工频运行的那台水泵。系统主电路如图1所示。有一点需要说明,由于水泵在工频运行时,变频器不可能对电机进行过载保护,所以必须接入热继电器FR,用于工频运行时的过载保护。 

GIDDINGS & LEWIS 502-03994-11R10PP 5020399411R10

GIDDINGS & LEWIS 401-34404-00PP 4013440400

GIDDINGS & LEWIS 502-03839-03 NSFP 5020383903

GIDDINGS & LEWIS 502-03839-04R0PP 5020383904R0

GIDDINGS & LEWIS HSM 620 SERVO MOTOR

GIDDINGS & LEWIS TRUEVIEW 3390K

GIDDINGS & LEWIS DS130 SERVO DRIVE

GIDDINGS & LEWIS DSM130 SERVO DRIVE
Electro-Craft, Reliance Electric, Allen Bradley DDM-030

GIDDINGS & LEWIS 401-34438-20 NSFP 4013443820

GIDDINGS & LEWIS 401-34403-00 NSFP 4013440300

GIDDINGS & LEWIS 502-02723-52PP 5020272352

GIDDINGS & LEWIS PIC900 TURBO CPU MODULE 502-03814-60R1

GIDDINGS & LEWIS 502-03839-03 NSPP 5020383903

GIDDINGS & LEWIS 401-34401-00PP 4013440100

Giddings & Lewis Centurion DSM 100 Automation Control

Giddings & Lewis 502-03510-61R2 CPU

GIDDINGS & LEWIS TRUEVIEW 3390TH

GIDDINGS & LEWIS DS120 SERVO DRIVE
Electro-Craft, Reliance Electric DM-020

GIDDINGS & LEWIS DSM120 SERVO DRIVE
Electro-Craft, Reliance Electric, Allen Bradley DDM-020

NEW Giddings & Lewis NSM2304 M.1015.6949 Servo Motor
Expedited shipping available

GIDDINGS & LEWIS DS120 SERVO 401-34201-22 120VAC 1.5kW

GIDDINGS & LEWIS 502-04111-11R5PP 5020411111R5

Giddings & Lewis Cimrex C100 Touch Screen **LNC**
Expedited shipping available

GIDDINGS & LEWIS 502-04077-00 NSFP 5020407700

GIDDINGS & LEWIS M.1016.9143 NSFP M10169143

GIDDINGS & LEWIS 401-34403-00PP 4013440300

GIDDINGS & LEWIS PIC900 CSM 50W MODULE 502-03512-02R3

Giddings and Lewis 502-02771-50 Analog Interface Board

GIDDINGS & LEWIS M.1015.6956PP M10156956

GIDDINGS & LEWIS 401-34438-00 NSFP 4013443800

GIDDINGS & LEWIS DSM110 SERVO DRIVE
Electro-Craft, Reliance Electric, Allen Bradley DDM-010

GIDDINGS & LEWIS DS110 SERVO DRIVE

Giddings & Lewis Winslow Exatamatic Drill Grinder

GIDDINGS & LEWIS 502-03552-22 NSFP 5020355222

Giddings and Lewis 502-02733-00 Math Board

GIDDINGS & LEWIS 502-02619-00PP 5020261900

Giddings and Lewis 572-02771-50 Analog Interface Board

Giddings & Lewis Centurion DSM100 Servo Drive 401-34402
One-day shipping available

G&L Giddings & Lewis 800 502-03274-00 CMOS Memory BD.

GIDDINGS & LEWIS 1-20641-02PP 12064102

GIDDINGS & LEWIS 502-03839-03R0PP 5020383903R0

GIDDINGS & LEWIS 401-30286-00PP 4013028600

FACE PLATE DRIVE GEAR FOR GIDDINGS & LEWIS G&L 80-TEETH

GIDDINGS & LEWIS 401-34201-30PP 4013420130

Giddings Lewis Centurion Servo Drive DSM110 #17198

GIDDINGS & LEWIS M.1017.2266 NSFP M10172266

GIDDINGS & LEWIS 401-34201-13PP 4013420113

GIDDINGS & LEWIS 401-34201-12PP 4013420112

GIDDINGS & LEWIS 502-04104-10PP 5020410410

GIDDINGS & LEWIS 503-19184-00PP 5031918400

GIDDINGS & LEWIS 502-04111-01R2PP 5020411101R2

Expedited shipping available

Giddings & Lewis AC Servo Drive Centurion DSM175

GIDDINGS & LEWIS 4 CHANNELM. MODULE M.1016.9140 R6

Giddings & Lewis 502-03510-41R2

GIDDINGS&LEWIS BHLESS SERVO MOTOR DRIVE DS120 *NEW*

GIDDINGS & LEWIS CENTURION DS-100 DS120, 401-34201-22

GIDDINGS & LEWIS 502-04137-00PP 5020413700

GIDDINGS & LEWIS 502-03839-02 SERVO MODULE ***XLNT***

GIDDINGS & LEWIS 502-03813-03R0PP 5020381303R0

Giddings & Lewis MMC-SD-1.0-230 smart drive M.1301.6598
G&L Motion control labeled under Sheffield Automation