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。HONEYWELL STT350-0-EPSM-0000-00000EN-000-0000-1J DURANT SYSTEMS 56450-401
HOMATIC 2-083-02-7420
FANUC A20B-8200-001/06A
GENERAL ELECTRIC IC3606SPCD1H
BURKERT 8226
BRAUN E1697-10375399
HONEYWELL RA890G1260
PMP71-SBC2PB1RDAAU
OSRAM 8545271
KEB D2F5SBE-14EC
STR AUTOMATION SYSTEMS SLZ90P
SCHUNK 342850
GENERAL ELECTRIC DS3800NEPD1D1B
FANUC A16B-1110-0260/07D
FLOWSERVE VLCYLINDER 3-15PSI
ROSEMOUNT 1151GP5S22W7B3L4
KOYO ELECTRONICS NX-G21-FP12XXGK
WELLER WFE2S
GOULD AS-B883-001
SANYO DENKI 67ZA150MXXXC04
ALLEN BRADLEY 20AD8P0A3AYNANNN
ABB DSAI-133
IKEY FP-17-PMT 17INCH
ASCO 8018A004
ALLEN BRADLEY 1336F-CWF50-AN-EN
YOKOGAWA AE204DN-AB1-LSA
GE FANUC IC660BBD025S
KB ELECTRONICS 92A61633010000
HMIG5U2
C7012A 1160
ABB 1911JAA01100600STD
DS3800NCCB1H1F
ROSS 3126A3011
6FC5203-0AB11-0AA2, 6FC5210-0DA20-2AA1
A06B-6055-H118 #H508
FRN030VG3-2
FCA710PY-11
NSB-24
fr-se-2-3.7k-f
a06b-0153-b176 #7000
a06b-6044-h032, a20b-0009-0530/24j
801429-5SC
303j Typ B, Mod # d11-b
A06B-0871-B900 #0391
CIMR-vms2750
a06b-0590-b001 # 7008
m237-h60a-300y
A06B-0753-B394 #3000
mds-dh2-sp-160,
112le
sj-pf3.7-01, 1500-10,000
20-tma2
A06B-0843-B101 #3000
Okuma OSP Bedienpult, 5020, e0105-800-195
1395-B73N-C2-P12
a06b-6064-h326 #h550
a06b-014-b077 #7000
1-hu3104-0ad01-z, encoder, 1-605-1040
hu3104-0ad01-z
a06b-0590-b002
1999, e00549a03
A06B-0503-B001 #7008
Allen Bradley AC Drive, 1336-c030-eaf-s1
ABB 15 HP Motor Controller # G02400A00
Mazak Servo Drive Unit, denke 05-0000
A06B-6044-H021, A20B-0009-0531/21H
a06b-6044-h108
a06b-6044-h021, a20b-0009-0531/22j
a06b-0151-b088 #7008
mori seiki msc-801
a06b-6064-h327
1ph7101-2nf02-0dj2
CIMR-mti-11k.h/CIMR-mti-11k
6av7671-4aa00-0aa0
1ft6105-8af71-3eg1
A06B-0147-B110 #0001
a06b-0157-b075
fd10b3bt38a
A06B-6041-H108, mit A20B-0005-0374/12E
a06b-0505-b203
TA603S490-G
1006-2228-0235039
a06b-0147-b084 #7008
A06B-0505-B205
a06b-0319-b004
A06B-0147-B184
a06b-6044-h008, a20b-0009-0530/22j
a06b-0502-b851
fca610mt
1ft6105-8ac71-1ab0
a06b-1211-b113 #0902
680B765G45
Art.-Nr. 9-39105-61
1ft6105-8af71-4eg1
msvb-sv-15ns, d72jv009300
11029d-xl
a06b-6078-h222#h500
Delco 3 HP AC Motor, 2G2454-R
5k38sn45a
FCA65M, H/W FCU6-MU021
a06b-0319-b001
a02b-0162-c091, mit a61l-0001-0094
E 0105-437-051
20-TMA1
E-PU2570A
11" 3-Jaw/Face
Knoll kts-25-50-t1
A06B-6044-H008, A20B-0009-0534/19H
a06b-6059-h206 #h511, a20b-1003-0010/15b a20b-0008-0033
6sc 6502-a4402-z, T 3414169
E7BVB007TXW3
A06B-0501-B002 #7000
Yaskawa Servomotor, ughmed - 20-TMA3
A06B-6058-H304, A16B-1110-0330/05B
adm1.2-100-300-w1
A06B-0165-B076 #7000
5K213BK307
bms19023630l
c0g4b, fr: 215tz
Kitagawa Stellantrieb s1875-21e
CCN6G1UUC64
ha300c-s mit Encoder, S/N 4y025
HA300CS
16-0272-50
bl-h200e-20t
a06b-0166-b176 #7000
240/480 -120
FANUC 7.5 kVA Trafo A80L-0026-0002 #A-01
14c09p4911
3r-sp5011
a06b-6044-h008, a20b-0008-0240/07d
M28-0426-G039H
1906901490
Aus Vereinigte Staaten von Amerika
CMPR-fd10b1b38a
JPB-160-2025-28
PB-160-2025-28
401-6001-018, 90-6300
a06b-1002-b100
13cb20e
a06b-1002-b100
a06b-0147-b088
TA603S490-G
GPA-63-E-20 R
1la6130 6aa16
bl-mc150e-20sn-a
Klasse 8538, Typ SEG35
SJ-J3.7 A, 1500/8000
TT-4208-4300-E
FANUC a02b-0098-c065
dvd-360
SZS 66/120
AF-502507-0480
a2-8
dl-sbz-2-18.5k-d
a06b-0265-b101
a06b-0502-b272 #7000
Okuma miv0203-1-b1 AC Servo Drive, 1006-2228-015-012
Yaskawa ugjmed - 80LMU11
GMT150L50,
a06b-0358-b755/a06b-0358-b755-r
MS4436B
1ft6082-8ah71-3eg0
A02B-0120-C071, XA02B-0120-C071#16T
a06b-0502-b004 #7008
cr29-0416-002
bl-mh201e-20sn-a
DTD 3500
a06b-6044-h008, a20b-0008-0030/04c
DDC01.2-N050C-DS01-02-FW
etk000760
Okuma miv01-1-b3
1336S-B025-AN-EN4
30AJA-F
HA300CB
a06b-0651-b505
Matsuura mc-710v-2
bl-mc150e-20sb
PHD138422
a06b-0315-b210 #7073
HH31C 8
Aus Vereinigte Staaten von Amerika
1FT6084-8AK71-1AG3
12-mu13 tfue - 25zc7
bl-mh201e-20sn-a
F8-SE, 1LC160B140N
10-590-10-A08A
a06b-0142-b176
203NC-S/HA203NC-S
s286584h4005
HA203CBS
bl-mh101e-12sb
A02B-0060-C035, A20B-1000-0480/04A
FANUC 21i-ta Controller Unit, a02b-0247-b542
A06B-6055-H108, A20B-0008-0030/02
FANUC #a22/2000 a06b-0147-b176
Yaskawa USAGED - 30a22t
nu-e403aa
1FK6083-6AF71-1EG2
20BM220MBP01
c1296t8h2-w2-120/277
bl-mc200e-20tb
Katze # 450-2205, Mod # tpef, 230-460 bis 75/120
Mitsubishi AC Servomotor, # HA200CB
Bosch Servo Motor, SD-B4.140.020-05.000
HA83C-SD5 mit Encoder OSE 5K-6-12-108
SJ-P 1.5a, 1500-10,000
mts30r4-42, k97-73020
10 2b-931021t9
bl-mc100e-20s
a80l-0028-0001
PD2G1A1AAN
pv7-20/20-20ra01ma0-10
A06B-0148-B076
hd81b-12s
Mitsubishi mds-b-cv-220
NU-E403AA-B
480 bis 24 VDC @ 15A/230 1 PH @ 4 kVA, 201-0898
1336-b007-ead-fa2-l2
TXS210
a06b-0235-b101
4230 1465 80
a06b-0651-b212/a06b-0651-b212-r
CACR-hr20bb/CACR-hr20bb
a06b-0315-b043
USAFED - 13-YB21
a06b-6064-h308#h550, a16b-1300-0220/03a
Danfoss 088l3446
KA4C6P28R
mhb110426g310
HR 590-10-a6
HA200CS
5KN-6-12-108
A06B-0147-B076 #7000
bl-mc150j-20s
bl-mc150j-20sna
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