恒壓供水系統(tǒng) 全自動(dòng)恒壓供水控制原理 當(dāng)主水管網(wǎng)壓力傳感器的壓力信號(hào)4~20mA送給數(shù)字PID控制器，控制器根據(jù)壓力設(shè)定值與實(shí)際檢測值進(jìn)行PID運(yùn)算，并給出信號(hào)直接控制變頻器的轉(zhuǎn)速以使管網(wǎng)的壓力穩(wěn)定。當(dāng)用水量不是很大時(shí)，一臺(tái)泵在變頻器的控制下穩(wěn)定運(yùn)行；當(dāng)用水量大到變頻器全速運(yùn)行也不能保證管網(wǎng)的壓力穩(wěn)定時(shí)，控制器的壓力下限信號(hào)與變頻器的高速信號(hào)同時(shí)被PLC檢測到，PLC自動(dòng)將原工作在變頻狀態(tài)下的泵，投入到工頻運(yùn)行，以保持壓力的連續(xù)性，同時(shí)將一臺(tái)備用的泵用變頻器起動(dòng)后投入運(yùn)行，以加大管網(wǎng)的供水量，保證壓力穩(wěn)定。若兩臺(tái)泵運(yùn)轉(zhuǎn)仍，則依次將變頻工作狀態(tài)下的泵投入到工頻運(yùn)行，而將另一臺(tái)備用泵投入變頻運(yùn)行。當(dāng)用水量減少時(shí)，首先表現(xiàn)為變頻器已工作在最低速信號(hào)有效，這時(shí)壓力上限信號(hào)如仍出現(xiàn)，PLC首先將工頻運(yùn)行的泵停掉，以減少供水量。當(dāng)上述兩個(gè)信號(hào)仍存在時(shí)，PLC再停掉一臺(tái)工頻運(yùn)行的電機(jī)，直到最后一臺(tái)泵用主頻器恒壓供水[4]。另外，控制系統(tǒng)設(shè)兩臺(tái)泵為一組，每臺(tái)泵的電機(jī)累計(jì)運(yùn)行時(shí)間可顯示，24小時(shí)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(yùn)行時(shí)間，確保了泵的可靠壽命。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
Boston Gear Reducer, Input HP 7.060
ABB Operator Interface Panel, # S3PC
fr-sgj-2-2.2k
43h1-3126-001
A06B-0315-B202
Yaskawa PC Motherboard, JANCD-mb20e -1
Fuji dsr-83 AC Spindle Drive, fsd-18dn25
Okuma Sanyo AVR Unit, # E-0451-292-024
a13b-0196-b004,
IC73F1/IC73F1-JBG1A5A0
Okuma sdu-600-w
Yaskawa USAGED - 09a210e
zs090090-mf+250
Yaskawa Servo Controller SGDB - 10
Sanyo Denki-sanups A11H152A011USP
115/230 bis 2-24/2-48v
4AU3095-0BL60-2F
bd625a551h03
a06b-0347-b256
a06b-0317-b002 #7000
Yaskawa Servopack, CACR-hr20bb
IEF Werner Easyline Linear Actuator Unit, 50mm, 42-1/2"
a80l-0001-0083
QSY 155B
10-s-278, a6
40vtp1/9-6.75
a06b-0128-b175 #7000
cn-400t-21
TOX PRESSOTECHNIK K 02.164.200.12
Mitsubishi AC Servomotor, # ha103cs
Bosch Rexroth Drive, PST 6250.105l, pst6000, AG d-64711
1FT6062-6AF71-3EG6
a06b-6102-h215 #h520
a06b-0514-b172 #7000
cn-800t-21
FANUC PC BOARD, a16b-2202-0070/08c
FANUC 30f/2500 AC Servomotor, a06b-0358-b756
Yaskawa USAGED - 20a22t
Yaskawa ugcmem - 15-MC52
A80L-0001-0193
a06b-0147-b076
US Motors 5 HP AC Motor, s662a
Knoll Kreiselpumpe tg40-07/11285
Knoll Kreiselpumpe TG40-07/15 285
HMC2800F
A80L-0001-0275
80MA20F tfue - 25ZC7
1fk6060-6af71-1eh0
bl-mh101e-20t, er-fc-2048d
a02b-0236-d511
ml301578/ml301578-rev-e
Cincinnati Milacron PC Board, 3-424-2374a03
Yaskawa USAGED - 20A22
a80l-0001-0329, Typ 07246
Typ # tnt-bn-4k/e Ref # 996 320 e01
280-2PC-1ALO-HL-09
25bm014dxe50
Yaskawa USAGED - 20A22T
ha43ncb-s
06gg10f mit tfue - 15zd7
CN-1000-10
a20b-0009-0539/25j
DDC01.1-K100A-DS01-01
Yaskawa sgmdh - 22a2a-yr11
c4100ap1v116051
a06b-0501-b206 #7073
a81l-0001-0133-02
BCC-47
SA1000, 1206390
Okuma OSP 5000 E/C Netzteil, e0451-254-006-1
Daykin Transformer trennen, dtfp - 0501
Siemens Brushless Servomotor, 1ft6086-1af71-4eh1
Tokyo, Servoventil, 403f-30l-30-07.131
Yaskawa Servopack Drive, CPCR-mr-155gb
BL Sanyo Super Servomotor, p80b22450rcx2a
daykin transformer trennen, model # dtfp - 1301
A80L-0001-0273
Okuma miv02-1-b1 AC Servo Drive, 1006-2201-017-006
Trans 6/1, 301342
GPFs - 15
1LA2054-4AA21
dkl-40va-a/dkl-inc
CACR-hr30bb
Toyoda BL Super Servomotor, 20 BM 090
ha93-kn, Encoder Arst-xb-11, bko-nc6199
1006-2212-017-005
is-100-2pm-1ah0-hb-53
60LMU11
D-3169
VT130G2U2080
e0451-521-037
10-2500M
FR-SFJ-2-3.7K-T, BN405U273
fr-sfj-2-3.7k
ms4440b-2
9827-17110
5K184BG617
hd-30-et-025
rv250/120/109
Mitsubishi DC Servomotor HD 101-12
a06b-0358-b755
36h498-1868
ta303s300-g+131
kerr 3002k946 1.25x1
a06b-0223-b300
2Ph/35V, 5145347
NRE100, 57229-4
Yaskawa CPCR-mr082gg
MA-P420-001
WMV1-210-AV
174-2V2-2-20-069
a06b-0346-b357
093A-0-LS-4-C/110-B-1/WI524LV/S005
tf3000en-6072
s3200-cps05
RST-4XB-11
ha93-kn
5kn-6-12-108
a06b-6114-h107
pcr-05c-060-1cc
t320ga5-1-1/4/t320ga5-1-1/4-4.88
Allen Bradley Industrie Computer, 6180
A80L-0001-0273-03
ASE15S1 Netzteil, ASE15S1U001-20
6SN1123-1AA00-0GA0
1336-B010-EAD-FA2-L3
tvm2.1-050-w1-115v
w105-120a
1LC 3113-2AC90-ZC00
Vogel/Spandau Pumpe PMS17A
CACR-hr10aab
TM13AM-3R22 - ptnk - 10-174
CPCR-mr-082gb
wc20c30
A06B-0377-B175
FT3074-5AZ219
MP 190.2.20.15.38.80.180.215
JZNC-jpcop - 02E-00
HA103CS
vt130g1-2270u
hf-h104k
A16B-1000-029/01A
35fr-k
USAFED - 09DB1OE
TG30-24/11
Yaskawa AC Servopack, CACR-SR30BY1SG-P
Mitsubishi AC Servomotor, HA 80cb-ss
MELDAS-ym2v
1ft6044-4af71-4eg2-z
040-38U165B
a16b-2200-0330/09a
R60-DT80K4
s47dt80n4bmg1hr
Brother PC Mainboard, b521226-2
Trans 01 4/1, 300723
103-468-4800
cacr-sr05bb1af
CACR-sr05bb1bf-h
Advantech fpm-3150g-r
Rexroth Indramat System 200 btc06
Boston/Baldor 1-1/2
A80L-0001-0274
HMT075H60
Yaskawa CPCR-MR152GB
15/1x0006-001
15/1x0004-001
Yaskawa/HURCO CIMR - 7.5b.d06
USAFED - 20fb2t-h, 1500
2.1-50w1-115/220
6VAF343010B-A2
5.0f-0429t10001
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