對於一個閉環控制係統，如果反饋信號的方向不正確，後果肯定是災難性的。通過控制卡打開伺服的使能信號。這是伺服應該以一個較低的速度轉動，這就是傳說中的“零漂”。一般控制卡上都會有抑制零漂的指令或參數。使用這個指令或參數，看電機的轉速和方向是否可以通過這個指令（參數）控制。如果不能控制，檢查模擬量接線及控制方式的參數設置。確認給出正數，電機正轉，編碼器計數增加；給出負數，電機反轉轉，編碼器計數減小。如果電機帶有負載，行程有限，不要採用這種方式。測試不要給過大的電壓，建議在1V以下。如果方向不一致，可以修改控制卡或電機上的參數，使其一致。
ALLEN BRADLEY INTERFACE MODULE CONVERTER 160-DM-PS1 SER. B 1
ALLEN BRADLEY 100-ETA3 SER B ELECTRIC TIMER
ALLEN BRADLEY ControlNet Coax Cable System User Manual
ALLEN BRADLEY 1HP VARIABLE SPEED AC DRIVE 1336S-BRF10-AA-EN-HA2-L6 SER. D
ALLEN BRADLEY 600VAC 25A 3-POLE LOAD SWITCH 194E-E25-1753 SER. A
GE MOTORS ALLEN BRADLEY 60HP DC MOTOR 5CD194XA002A810
ALLEN BRADLEY DEVICENET T-PORT 1485P-P1N5-MN5KF SER A
ALLEN BRADLEY 6" L x 2" LOOP NYLATRON LOOPED ROD LEVER 802T-W14 SER. B
ALLEN BRADLEY CIRCUIT BREAKER 4A 2P 1492-CB2 G040 SER B
ALLEN BRADLEY 800T-A SERIES T TYPE 4 13 PUSH BUTTON
ALLEN BRADLEY 120VAC RELAY 700-HA33A1 SER. B
ALLEN BRADLEY MINI-PLC-2/16 PROCESSOR MODULE 1772-LX/C F/W REV. D
ALLEN BRADLEY 6160MM1 SERIES A CHIP
ALLEN BRADLEY 1.5" RADIUS NON-ADJ STEEL ROLLER LEVER 802T-W1A SER. B
ALLEN BRADLEY 2A 120V EM RELAY 8-590 SER B
ALLEN BRADLEY LIMIT SWITCH 802M-A2X SERIES D
ALLEN BRADLEY GREEN OPTIC PILOT LIGHT 800EP-PL3 SER. A
ALLEN BRADLEY 800ES-HB322LX20V SPRING RETURN SELECTOR SWITCH SEALED
ALLEN-BRADLEY 1492-H2K120 SURGE SUPRESSOR SER. A 120 VAC/DC
ALLEN BRADLEY BULLETIN 1772 PLC-2 PROGRAMMABLE CONTROLLER 1772-LP3 SER. A
ALLEN BRADLEY 871TM-DH10NP30-D4 10-30VDC PROXIMITY SENSOR
ALLEN BRADLEY COLOR OPERATOR PANEL MISSING BUTTON 8520-VOP1
ALLEN BRADLEY 2-POSITION SELECTOR SWITCH MAINTAINED FOR HAZARDOUS LOCATIONS
ALLEN BRADLEY RECTANGULAR PUSH BUTTON 800A-M2GG SERIES B SEALED
ALLEN BRADLEY 3A 240/415VAC SINGLE POLE CIRCUIT BREAKER 1492-SP1D030 SER. C
ALLEN BRADLEY SIZE 2 NEMA TYPE 4X MAGNETIC MOTOR CONTROLLER 509-CSB-6P SER. A
ALLEN BRADLEY SER C PILOT LIGHT BLUE 1 80DT-N26B
ALLEN BRADLEY SER. C 3-PHASE TERMINAL 140-L2
ALLEN BRADLEY SYSTEM MODULE 8520-3S10A-BAT-EX4-T1-Y-4
ALLEN BRADLEY GREEN ILLUMINATED PUSH BUTTON SER.A 800FM-LG3 99375
ALLEN BRADLEY 1.5KW/2HP VARIABLE FREQUENCY AC DRIVE 1305-BA04A SER. C PLASTIC
ALLEN BRADLEY 0.37-22KW 1/2-3HP 380-460V CAPACITOR MODULE 160-CMB1 SER. A
ALLEN BRADLEY .32-1.0A AUXILIARY OVERLOAD RELAY 193-A2C1 SER. A
ALLEN BRADLEY 1336 PLUS AC DRIVE 1336S-B010-AA-EN4-HA1-L6 SER. C FAN
ALLEN BRADLEY SER.A RED FLUSH PUSHBUTTON 800E-F4
ALLEN BRADLEY 4 PIN MICRO CABLE 60-2364-2 SER A
ALLEN BRADLEY 800EM-M4 RED MUSHROOM PUSH BUTTON
ALLEN BRADLEY SER K SIZE 1-2 CONTACT 1495G1
ALLEN BRADLEY SER A TRUNK CORDSET CABLE 1485C-P4M5-C
ALLEN BRADLEY GUARD MASTER 250V 2A INTERLOCK SAFETY SWITCH 440K-T11390
ALLEN BRADLEY 120V ILLUMINATED PUSH BUTTON 800MR-PGA16S SER. D
ALLEN BRADLEY 120V 60HZ SIZE 1 BOD93 SER A
ALLEN BRADLEY BULLETIN 1361 20A 1 PH 50/60HZ 115V DRIVE 1361-D063-2-5-10 SER. B
ALLEN BRADLEY FORWARD REVERSE SWITCH SERIES M
ALLEN BRADLEY SURGE SUPRESSPR 100-FSV136 SER A 1
ALLEN BRADLEY SIZE 3 R. H. OVERLOAD RELAY X-42405
ALLEN BRADLEY NON ADJUSTABLE LIMIT SWITCH ROLLER LEVER 802T-W7 SER. 1
ALLEN BRADLEY 8A CIRCUIT BREAKER 1492-SP C8
ALLEN-BRADLEY 3 POLE DISCONNECT SWITCH 40021-573-01
ALLEN BRADLEY CONTROLLER KEYPAD ASSEMBLY MODULE 160-P1 SER A
ALLEN BRADLEY TERMINAL BLOCKS 1492-UG4 SER-A 48
ALLEN BRADLEY RELAY 70-HA32A1SERIES A 120V
ALLEN BRADLEY OPTIC PILOT LIGHT 800EP-PL4
ALLEN BRADLEY SER B NEMA SIZE 0 3PHASE STARTER 505-TOD
ALLEN BRADLEY CONTACTOR STARTER SIZE-2 SER.K 759042 102975
ALLEN BRADLEY REMOTE DRIVER MODULE 1770-RD1 PLC-2/RS-232 96039471
ALLEN BRADLEY TERMINAL BLOCK SER.A 1492-WKD3 102127
ALLEN BRADLEY HARDWARE KIT 129 130B SEALED
ALLEN BRADLEY 6-300VDC SURGE SUPPRESSOR 199-FSMZ-1
ALLEN BRADLEY 4PIN MICRO RIGHT ANGLE CABLE 889D-R4AC-2 SER B
ALLEN BRADLEY 120VAC 15A RELAY 700-HB33A1-4 SER. D
ALLEN BRADLEY 600V MAX PRE WIRED FACTORY SEALED LIMIT SWITCH 802M-KJ1 SER B
ALLEN BRADLEY 30A 600V SINGLE POLE FUSEHOLDER 1492-FB1C30 SER. A
ALLEN BRADELY SERIES 1 RED CAP PUSH BUTTON 800T-FX D4
ALLEN BRADLEY BOARD 960206 REV 3
ALLEN BRADLEY RELAY 700-HC14A1-1-4 SER. C
ALLEN BRADLEY N13 OVERLOAD HEATER ELEMENT RELAY SEALED
ALLEN BRADLEY 5A 1P CIRCUIT BREAKER 1489-A1C050
ALLEN BRADLEY PHOTOSWITCH V-CABLE SER. A 879D-F4ACDM-0M3
ALLEN BRADLEY 24V PRE WIRED FACTORY SEALED LIMIT SWITCH 802M-NX10 SER. A
ALLEN BRADLEY ABSOLUTE OPTICAL ENCODER 845A-SJZ1FNAX3 SER. C
SDRAM DIMM 64MB MEMORY CARD FOR ALLEN BRADLEY 6180 CPU 6189-DIMM64
ALLEN BRADLEY TYPE F 24VDC COIL CONTROL RELAY 700DC-F220Z24 SER C
ALLEN BRADLEY 2-POSITION SELECTOR SWITCH 800T-H4A SER-T
ALLEN BRADLEY START-STOP PUSH BUTTON X 36259
ALLEN BRADLEY 4A CIRCUIT BREAKER SER.B 1492-CB1DG040
ALLEN BRADLEY TEMPERATURE CONTROLLER 837-A4 SER. A
ALLEN BRADLEY GUARDMASTER TROJAN 5 SAFETY SWITCH
ALLEN BRADLEY 1A 2-POLE CIRCUIT BREAKER 1492-CB2 G010 SER. B
ALLEN BRADLEY 300VAC 720VA CONTACT BLOCK 800M-VA SER.B
ALLEN BRADLEY LT200-S/SP33 LEM CURRENT MODULE
ALLEN BRADLEY 12 BIT ANALOG INPUT EXPANDER MODULE 1771-E1C REPAIRED
ALLEN BRADLEY ROTARY ENCODER 845H-SJDL24CFY1C SER.C
ALLEN BRADLEY ROUND PILOT LIGHT ACCESSORY WHITE 800MR-N1W
ALLEN BRADLEY 110/115-120V 60HZ 3-4 POLE SIZE 00 STARTER 509-TOB SER A
ALLEN BRADLEY NEUTRAL LIMIT SWITCH SER.A 802M-XNPJ1
ALLEN BRADLEY 3 PIN STRAIGHT FEMALE CONNECTOR 871A-TS3-N1 SER. B
ALLEN BRADLEY 110/115-120V COIL 27A SIZE 1 CONTACTOR 500-BOD920 SER B
ALLEN BRADLEY CONTROL RELAY SER B 700-HC14Z24-1-4
ALLEN BRADLEY 802M-K1X SERIES B LIMIT SWITCH OPERATING HEAD ONLY
ALLEN BRADLEY PUSH BUTTON SER. T 800T-B9D1
ALLEN BRADLEY 3-PHASE CONSTANT TORQUE AC DRIVE 1336-B015-EAE-FA2-L3-S1 SER. A
ALLEN BRADLEY BOARD 960240 REV-1
ALLEN BRADLEY STARTER SIZE-1 SER.K 709BOD
ALLEN BRADLEY DEVICENET TERMINATOR MICRO MALE 1485A-T1D5 SEALED
ALLEN BRADLEY 1/2-1HP 380-460V DYNAMIC BRAKING RESISTOR 160-BMB1 SER. A
ALLEN BRADLEY 1HP/2HP DC MOTOR CONTROLLER 1365-SAN
ALLEN BRADLEY MESSAGE DISPLAY INPUT CONVERTER 2706-NG1 SER. B
ALLEN BRADLEY GREEN FLUSH PUSHBUTTON 800EM-F3 SER. A
ALLEN BRADLEY SAFETY SWITCH ENC TYP. 4X 502-T694890/1 SIZE 1
ALLEN BRADLEY 15HP VARIABLE SPEED AC DRIVE 1336S-B015-AA-EN4-L4 SER. D
ALLEN BRADLEY LANGUAGE MODULE 1336S-EN5 SERIES A MISSING FRONT COVER
ALLEN BRADLEY 110/115-120V COIL SIZE 1 REVERSING STARTER 509-BOD SER. A
ALLEN BRADLEY 1494V-RA2 CONNECT ROD
ALLEN BRADLEY SER. A PROTECTIVE PUSHBUTTON RING 800T-N310
ALLEN BRADLEY AC SERVO MOTOR 1326AB-C3E-21
ALLEN BRADLEY 10-30VDC INDUCTIVE PROXIMITY SENSOR 871TM-DF3NP18-H2
ALLEN BRADLEY PROCESSOR MODULE 8520-4APA1 SER. C
ALLEN BRADLEY 95/110V 50/60CY COIL 2A01
ALLEN BRADLEY REVERSING MOTOR STARTER SIZE-1 SER.K 705-BOD46 103090
ALLEN BRADLEY 1/2HP INVERTER DUTY AC SERVO MOTOR ENP56H5304P-DD
ALLEN BRADLEY 110/120V COIL 2NO CONTACTS AC CONTROL RELAY 700-BR200A1
ALLEN BRADLEY 2803-VIM2 VISION INPUT MODULE
ALLEN BRADLEY 10A 500V LIMIT SWITCH 802A-D26P2-S10 SER. A REV. A
ALLEN BRADLEY FULL VOLTAGE MODULE W/ LATCH 800E-2DL3GX10 SER. A
ALLEN BRADLEY 6A CIRCUIT BREAKER SER.B 1492-CB1H060
ALLEN BRADLEY 10A 120V RELAY 700-HF32A1-4 SER A
ALLEN BRADLEY 2-POLE 6A CIRCUIT BREAKER 1492-CB2G060 SER. C
ALLEN BRADLEY CABLE ASSEMBLY 1771-CAP3 / 916707-01
ALLEN BRADLEY .075KVA 220/440 240/480 TO 110/120 STEP-DOWN TRANSFORMER X-343858
ALLEN BRADLEY 23-75A OVERLOAD RELAY 592-A1KD
ALLEN BRADLEY 6A CIRCUIT BREAKER SER.A 1492-SPU1C060
ALLEN BRADLEY FLUSH HEAD PUSH BUTTON UNIT 800T-A2A
ALLEN BRADLEY PLUG IN JUMPERS 50 PCS 1492
ALLEN BRADLEY 2A SINGLE POLE MANUAL MOTOR CONTROLLER 1492-CB1 H020 SER. C
ALLEN BRADLEY BAR CODE DECODER 2755-DD1A SER. B REV. F
ALLEN BRADLEY 3-POSITION SELECTOR SWITCH 800T-J91KC1B SER-T
ALLEN BRADLEY STEADY INCANDESCENT YELLOW LENS SER A 855T-B24DN8
ALLEN BRADLEY 20A 3 POLE CIRCUIT BREAKER 1492-CB3H200 SER. B
ALLEN BRADLEY 115-120V COIL RELAY 700-P1200A1 SER.B
ALLEN BRADLEY 10A 2-POLE CIRCUIT BREAKER 1492-CB2 DG100 SER. B
ALLEN BRADLEY 1334-FJB-S1-T4 ADJUSTABLE FREQUENCY MOTOR DRIVE
ALLEN BRADLEY SIZE 3 115-120V STARTER 509-DOD SER. A W/ 595-A SER. B
ALLEN BRADLEY 10A 600V 3 POLE TRAILER FUSE BLOCK 1494V-FS100 SER. C
ALLEN BRADLEY POWER SUPPLY MODULE REV D01 1771-P4S/B
ALLEN BRADLEY 115-120VAC COIL NEMA SIZE 1 27A STARTER 505-BOD SER. C
ALLEN BRADLEY 1HP AC DRIVE 1336F-BRF10-AA-EN
ALLEN BRADLEY SIZE 1 3 POLE 120V/60HZ 509-BOD SERIES B BROKEN PLASTIC
ALLEN BRADLEY STRAIGHT 4PIN 10M CABLE-WIRE 889D-F4UC-10
ALLEN BRADLEY MECHANICAL INTERLOCK 199-MCA1 SER. A
ALLEN BRADLEY 800T-PS16 PILOT LIGHT
ALLEN BRADLEY STACKLIGHT VERTICAL MOUNT BASE 855T-DL1BVM SER. C
豫公安備 41010502000017號