恒壓供水系統(tǒng) 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(wěn)定。當用水量不是很大時，一臺泵在變頻器的控制下穩(wěn)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(wěn)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(tài)下的泵，投入到工頻運行，以保持壓力的連續(xù)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(wěn)定。若兩臺泵運轉仍，則依次將變頻工作狀態(tài)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(xiàn)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(xiàn)，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(tǒng)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(tǒng)有備用泵，又保證系統(tǒng)的泵有相同的運行時間，確保了泵的可靠壽命。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
90-34-56+029
MFM352H3V
THP-2206A
10" SCA 3-jaw
A06B-6059-H206 #H511
wi05-i31a mit w105-t46a
fsd-15dn25a
nq-1503a
cn-1000bt-10
5KN-6-12-108
Okuma osp3000 Operator Panel, eua-ic0007
Yaskawa USAMED - 06MS2SE
Okuma BL-Motor, bl-120e-20t
A06B-0315-B202 #7000
Yaskawa USAGED - 09A22T
f1546h-01a
ic600cp600l
20bm220mbp41
11" 3-Jaw/Face
Siemens 1fk6063-6af71-1eg0
Yaskawa SGMKS - 13a5v-bk21-b
1PV2V5-30/16RE01MC
Kooltronic Klimaanlage 6000
5BPB56KAA100
eua-ic0007, eua-1c007
Magnetek 5 HP AC Motor, Art.-Nr. 9-391328-63
Yaskawa AC Servomotor, USAFED - 09da10e
FANUC A02B-0309-B522 0iTC-MCU62480-001R00
LD825EJR2307
sal602/300-gz+405
a06b-0505-b202 #1001
C100T11FZ20A
DDC01.2-K100A-DA02-01-FW
bl-120e-20t
20a22/USAGED - 20a22te
HA 200ncs
A06B-6064-H301 #H550
bl-120e-20t
A06B-0501-B204/A06B-0501-B204-R
a80l-0026-0016 #b-02
fanuc 7.5 kva robotics trafo, a80l-0026-0016
fr-sgj-2-2.2k BK, bn420u 454
20s # a06b-0505-b003
A16B-1000-0390/02A
6sc 6502-0af01, 462502.9005.01
Aus Vereinigte Staaten von Amerika
a16b-3200-0362/05a
A10V16DR1RS4
06.0.a2.250
ss-050
Yaskawa AC Servomotor, USAFED - 13-YB11
Showa Electric Trafo # 10868-2
FANUC Transformer, a80l-0022-0007 a80l00220007
E5502-470-140, Typ 500
a06b-6082-h206 # h511
A80L-0026-0020
20a2a2 S
zhdc-sll57/61
hd41-12s
60ba150vfw00
a06b-0141-b078
JZNC-jpcrkma 1000-00
FANUC AC Servomotor, 20s/1500 # a06b-0505-b202
Okuma BL-Motor, bl-mc75e-20t
Mitsubishi DC Servomotor HD 100-11s
Siemens 6sn1123-1aa01-0fa1
a06b-6096-h202/a02b-6096-h202-r
euro/ha200ncb-s
6037-6
4MA170-NAB-1FM
6SN1111-0AA01-2EA0
Mod # 28-0416-g007
Yaskawa 154ge
B6117A-RTI0B
A06B-0502-B001
B0034FLF2UMW
Akte 80b
bl-d150a, Motor Typ # bl-h101e-60
a06b-6058-h321
6037-6
a06b-0148-b177
Y1240RE
a06b-6050-h404
5KN-6-8-108
B0054FLF2UYW
A80L-0044-0002
a06b-0505-b002 mit a860-0304-t012
arn135/arn135-f
b0034flf2uyw
a06b-0128-b584 #7008
20cb2s
6es5-921-3wb12
Microscan ms-7080
yaskawa varispeed 505mt
A06B-0505-B202 #1001
A80L-0001-0079
GE A06B-0357-B755
ha103ncb-s mit Encoder ose104,
fr-sgj-2-5.5k bogen, bn420u421
UF01B, MELDAS-M2A
T56H1034V-RS
80MA2SF
e4809-770-110-f
rst-1-xb-11
1326ab-b430e-21-k4
a06b-6058-h301
0220-78274
DDC01.2-N100A-DS01-02-FW
FANUC Servo Amplifier, a06b-6058-h301, a16b-1100-0220/08a
Yaskawa SGMGH - 40a2b2s
CRK 4 U-A-BUBV
Square D sk2000a2
AIQA 8dsp40
a80l-0001-0275-03
ml301578/ml301578-rev-e
fr-sfj-2-5.5k-t/fr-sfj-2-5.5k
830-0820l, Typ 304-0600l
CBR 12 tcsn 1105320
80be-00036-101-v-00
Mitsubishi AC Servo Motor, ha93-kn,
Nissyo Kogyo 3.1 kVA Transformator, 3 PH, BKO-NC 6244
PLCB 07-02
a06b-0235-b401
Ikegai TCU-15IK/TCU15IK
rt656f-506
UF01C, MELDAS-M2A, BN624A235H02
Mitsubishi AC Servomotor, # ha300cbs
MDM212H2V
10" A8 Spindle Mount, 3-Jaw
071B-N-040-N2L-095PBO
06.00 J2ATV14
Sanyo multicooler Unit, SMC-C0752
Gettys Magnet Servomotor, 120-087-306
10MSF21 tfue - 25ZC7
8dsp40
S3200-CPS03
Mitsubishi AC Servo Motor, ha93-kn
yve56c17f5540d
6av8100-1ba00-0aa1
08-mc58 tfue - 05zc7
a20b-2002-0660/06a, a02b-0098-b512
tm10am-3r22, tm10am-3r22 - ptnk - 10-172
YPX-10N
10 75210 000b
NZBen/ha200ncb-s
r60dt90l4
6160-t53
CMPR-FD05B1B38A
a06b-0357-b756
Encoder c-800t-25
ta303s300-g+131
注：聯(lián)系我時，請說是在“傲立機床網”上看到的，謝謝！
