恒壓供水系統 全自動恒壓供水控制原理 當主水管網壓力傳感器的壓力信號4~20mA送給數字PID控制器，控制器根據壓力設定值與實際檢測值進行PID運算，并給出信號直接控制變頻器的轉速以使管網的壓力穩定。當用水量不是很大時，一臺泵在變頻器的控制下穩定運行；當用水量大到變頻器全速運行也不能保證管網的壓力穩定時，控制器的壓力下限信號與變頻器的高速信號同時被PLC檢測到，PLC自動將原工作在變頻狀態下的泵，投入到工頻運行，以保持壓力的連續性，同時將一臺備用的泵用變頻器起動后投入運行，以加大管網的供水量，保證壓力穩定。若兩臺泵運轉仍，則依次將變頻工作狀態下的泵投入到工頻運行，而將另一臺備用泵投入變頻運行。當用水量減少時，首先表現為變頻器已工作在最低速信號有效，這時壓力上限信號如仍出現，PLC首先將工頻運行的泵停掉，以減少供水量。當上述兩個信號仍存在時，PLC再停掉一臺工頻運行的電機，直到最后一臺泵用主頻器恒壓供水[4]。另外，控制系統設兩臺泵為一組，每臺泵的電機累計運行時間可顯示，24小時輪換一次，既保證供水系統有備用泵，又保證系統的泵有相同的運行時間，確保了泵的可靠壽命。ENR19245-C Mitsubishi, NV100-CF
Sick, C20E-030302A11
ST307-350-B
Allen Bradley, 1771-0D16/B
Euchner, TZ1LE024BHA-C1903, 082095
DataLogic, ET3-5-C15
Allen Bradley, 836T-T301JX9
Keyence, PJ-50A
6SE6400-3TC01-0BD0
C28H-C3DR-DE
836T-T351J
AIMB-764G2-00A1E, AIMB-764G2, 19A2076404
4853835-01A
201A0115
836T-T253JX9
104-C30ZJ22
MXQ12L-50A
6EP1336-2BA00
USACEM-01AA2
DF8-PG-E0 IWM24-BK
U4307, SKI4307
40-3RB 10ft
FAL340802100
SEM100-SDA, 10.02.01.00320/2
C500-ID212, 3G2A5-ID212
PD49VN6C200Q, 717323-3
FD3100L
815-D0V16
3RG7845-4DD01
3RG7845-4DD00
Partlow, 14203000100
Humphrey, 062 4E2 21 70
MAA18938R
900901-051-G000
Mueller Steam Specialty, 53HHH7-1
Yaskawa, SRDA-CUA662AA, 165539-1
Fanuc A20B-2902-0530/01A
Turck, FTCI-3/4D15A4P-LI-UP8X-H1141
Sick, DS60-P31311, 1016693
GE, CR9500A100A87A
Enidine, MF2940
Mercoid, PRL-804-P1
Atlas Copco, 4230219505
Stearns, 105671105, E07-172
V4055A 1064
BCH5532-STA
DS2003
TT44-30K
Quartech Model 9302
EG-547
DIGIIN32, 20059094
313-240.2 9513
AJ65BT-64AD
Bachmann KOP 500 U/S B 6786/00
B-02585/00
1746-NI8, SLC500
FDNP-S0008H-TT
7MH41032KC01
FR-E520-0.1KN
PKZ2 ZM-10
FZ800R12KS4
MAP130-4000
DGSL-6-40-P1A
10397D4893
CE55BN3AB
SA21D
TSXRKY6EX
IC693MDL654D
OCE30M-F5-N2, OCE30M-F5, OCE30M-F5-N2S
3PH MPS121 102840 Z2885 T254298R1
DS-EP-40-D-4,
A16B-2200-0917
SMC, MHL2-25D
Rexroth, Z2DB
KTU 1600
F71010KB4J6
FTH-150-502
310FG-12-01
3Pole
MKS, 152
295434-4Z
LK0472B-B-00KVPKG/US, LK8123
Robicon 463922.01
HSS-9
500 92-01411-01
GBC Combo 101408
HFF72130STB5HP19
Tocco, 20FP239
Bailey, 6634685G1
RL9000TWM
TA-340, TA-340U
Astec, 73-171-002, ALS301C-3000-P
Inficon 253-200 VAH016-A
JEPMC-10350
PPE11005T
D65UB002580 YS-401A2-69475
BAMV001
LP2 D3201BD
GE A20B-2900-0790
Little Giant, 583002
56T34F5342D
9VH56T34F5342D, 56T34F5342
C-12C12, 59870
56T34F5342D
DR00060 F05F07-N-L-14
HS9371412-A10
5K35MNB117A
Allen Bradley, 42LRC-5200
Photoswitch, 42LRC-5010
Festo, SPC11-POT-TLF
LSVD600U00601V0
BL-600HA
42LRC-5200
Siemen, 6ES5 375-1LA41
25D-500IDZ-PA1B
CKDTC2HLRVS14M19MC
VS-10EM-1
836T-T251JX81X15
830L-3-OV1-SX-E-V1-SO
E3C, 6783402712, 6139007900
DPD1T-A80SS
AFDPG-18-JB
M34H640X716, M1A 95828390-001
DP41-TC
BC-FSC-071
MSXB038
HW9480227/154-A, 137339-1
SA3010, SAD18BBDFRKG/W/US-100-IPF
440R-ZBE820AZ1
LR7023, LR0450B-BR34AQPKGUS
PBS-104-101-Z001
7587-00203, PIC16I05
E51PLC1
AJ65FBTA2-16T-S1
Unico, 702-323
Q62DA
ITT, 52-121-754-802
D1VW020HNYGF1C
ME96-SSE-MB
DG4S4-016C-B-60
1204-TFA1
A16B-1213-0030
GE IC660EBD024W
SanMei 774-0157-1 TBC-ZMB-CPU
Allen Bradley 1771-DB
6N2P35831 MW-P350 68W2011273
63-0525-00
Allen Bradley 700-RTC43S100U1
IKO, CRBS 1358 E02, 130390-12, 1358E02
LMA-100BM-C05DBA
4810-FM
G-8231-1000B
Siemens 6ES5788-8MA11
63-1400-04 60KRPM
360C-P010WD
FS400 3SF7844-6SD04-0SS0
Static Controls CB-0973-001
870AP2-RA
Allen Bradley, 1772-LV
Allen Bradley, 836T-D452J
Hach, 46698-00, FS46697-00
5210G13116XXBD402SX
BRPM 003
LSI-11CPU
A20B-0008-0033
WMD RS330660
ATC, 325A000A20PK
Bosch CL500 CL 500 064719-103
D3W1DNYC5, D3W1DNYC5-14
HPWL-70-277V-PE
EG-07, GR62402511, 5-10LBS
AS-B231-501
DGMX2-5-PA-FW-E-S-30
3RK1300-OBS10-1AA3
500L-COD93
F46-600-A0DA
SA55-012E2C3
TDBO-1P5LS
TKN-A1
45-1009-SL-04L-160
5486-B2-00
FW-H02
XCSL784B3
LV-S62
AB Dick, 202254
70602076A600
ZUEP1223
FGEN-IOM88-5001
Red Lion, IMD13169
Sigma Corporation, 21602
1195504, SRB324ST
Fireye E300
GE, CR9500B100A2A
DG4V-3-2C-M-FPA5WL-B6-60
ATV212H075M3X
SJ01666-BM43
MF22193, OEMXT2.0MX2
LF 882TK7.5
B-12532 LH-32
W1Q-444/4000
PF-2R
DB11T-A
TZ1RE024MOR8C, X50016
V120-22-T2C
BU3FHC-030L
AS-M84A-002
HW9301566-1, 133817-1
PD765-6R3-10
190040, 190-040
385420-33
ATV31H075M3X
H10 0411020-016 42-13820
PPC-57M-RT
HZ171A607
DGC-18-320-GF-PPV-A
CDB-38-70091
GV-H1000
Thermo Scientific Orion , 100056
GT2-71MCP
PNOZ X11P
C6-03VF
E5EJ-A2HB-F
E3HQ-CT11
PX-24
LR-ZH500CN
LK8122, LK0264A-A-00KVPKG/US
Sick, BGS-V30
982C-10CA-BARR
X231-11VK
B7A-R6G31, 706172-2
MR0HRHMV11
Sick, WEU 26/2-132, 1 015 728
Turck, JBBS-57-SM01, 143236-1, U0209
Allen Bradley 1494F-N30
Dickinson Legg 0031611
16EF35BHAJJ
910-PM-CP-4-C
INLIM03
A17 3408617850
KP-M1U
SLTA-10
EG-545
JANCD-MIO04, DF9201221-B0N, MI004
QJ71BR11
060-6641-04
JANCD-HA03
Pilz, PNOZ X9P 24VDC 100-240VACDC
ABB, SDCS-IOB-21
Beck, 13-2245-03
1030 0979 00, 1030 0979 99
E3HQ-CT12
Q68ADI
6ES5 431-8MC11
7012AF
JE2H068N
TW-26, 142676-1
326R, 2004
BL-600HA
BL020201
700-RTC43S100U1
288134R01, 1462CB8, 3595883
注：聯系我時，請說是在“傲立機床網”上看到的，謝謝！
