![Wilo DD-I Скачать руководство пользователя страница 120](http://html1.mh-extra.com/html/wilo/dd-i/dd-i_installation-and-operating-instructions-manual_982863120.webp)
en
Electrical connection
120
WILO SE 2020-12
quences. If the inlet flow becomes greater than the volume flow, the control system in-
tervenes:
ƒ
The operating frequency is increased until the volume flow is slightly lower than the
inlet flow. This ensures that the pump chamber is filled up to the start level slowly.
ƒ
When you reach the start level, the volume flow is equal to the inlet flow. This keeps
the flow level in the pump chamber constant.
ƒ
The control now reacts depending on the fill level:
–
When the fill level drops, the pump is operated again at the calculated operating
frequency. The pump chamber is drained to the stop level.
–
If the fill level exceeds the start level, the pump is operated at rated frequency.
The pump chamber is drained to the stop level. The calculated operating fre-
quency will only be used again with the next draining sequence!
Sedimentation
The pipeline diameter is also monitored during the pumping sequence. If the pipeline
diameter becomes too small due to deposits (sedimentation), a flush cycle is started at
rated frequency. The flush cycle is terminated as soon as the set limit value is reached.
4.6.2
System-dependent framework
parameters
Various system-dependent framework parameters are stored in the system limits:
ƒ
High water start and stop level
ƒ
Dry-running protection level
ƒ
Alternative switch-on level
The "alternative switch-on level" is an additional switch-on level to the previous
pump out of the pump chamber. This earlier switch-on level increases the standby
chamber volume for special events, e.g. heavy rain. To activate the additional
switch-on level, apply a trigger to the I/O module.
ƒ
Alternative shut-down level
The "alternative shut-down level" is an additional shut-down level for lowering the
fill level in the pump chamber or for aerating the level sensor. The additional shut-
down level is activated automatically after a defined number of pump cycles is
reached. The level value must be between the shut-down and dry-running protec-
tion level.
ƒ
Minimum and maximum operating frequency
ƒ
Dry run sensor source
ƒ
...
4.6.3
Mains connection, pump
Wilo-EFC frequency converter
+DC
BR-
B
M
A
I N
S
L1 L2 L3
91 92 93
99
U V W
MOTOR
99
Fig. 19:
Pump connection: Wilo-EFC
Terminal
Wiring diagram
96
U
97
V
98
W
99
Earth (PE)
Insert the motor connection cables into the frequency converter through the threaded
cable gland. Connect the wires as per the connection diagram.
NOTICE! Widely position cable shielding!
Содержание DD-I
Страница 2: ......
Страница 3: ...3 Chinese simplified 4 English 96 ...
Страница 5: ...zh CHS 安装及操作说明 Wilo DD I 5 9 1 现场总线 参数概览 69 9 2 LSI 系统模式的示例电路图 88 ...
Страница 89: ...附录 zh CHS 安装及操作说明 Wilo DD I 89 另请参见 2 LSI系统模式 不带Ex的连接示例 90 2 LSI系统模式 Ex的连接示例 93 ...
Страница 90: ...zh CHS 附录 90 WILO SE 2020 12 9 2 1 LSI系统模式 不带Ex的连接示例 ...
Страница 91: ...附录 zh CHS 安装及操作说明 Wilo DD I 91 ...
Страница 92: ...zh CHS 附录 92 WILO SE 2020 12 ...
Страница 93: ...附录 zh CHS 安装及操作说明 Wilo DD I 93 9 2 2 LSI系统模式 Ex的连接示例 ...
Страница 94: ...zh CHS 附录 94 WILO SE 2020 12 ...
Страница 95: ...附录 zh CHS 安装及操作说明 Wilo DD I 95 ...
Страница 188: ...en Appendix 188 WILO SE 2020 12 9 2 1 LSI System mode connection ex ample without Ex ...
Страница 189: ...Appendix en Installation and operating instructions Wilo DD I 189 ...
Страница 190: ...en Appendix 190 WILO SE 2020 12 ...
Страница 191: ...Appendix en Installation and operating instructions Wilo DD I 191 9 2 2 LSI System mode connection ex ample with Ex ...
Страница 192: ...en Appendix 192 WILO SE 2020 12 ...
Страница 193: ...Appendix en Installation and operating instructions Wilo DD I 193 ...
Страница 194: ......
Страница 195: ......