Resetting Of External Alarm; High Water Level - Grundfos IO Instrucciones De Instalación Y Funcionamiento

Connection
Terminal Lead number
1
2

5.3 Resetting of external alarm

The IO module has one digital input that is used to
reset the alarm relay output. Connect the resetting
switch/contact as shown in fig. 8.
N
230 V
Alarm resetting (manual resetting)
Fig. 8
Data signal
4 A
6 B
3 4

5.4 High water level

See fig. 9.
The IO module has one digital input (with NO/NC
options) that can be used for detection of high water
level. Before the NC option can be used, it must be
enabled by setting the DIP switch to ON (left)
(pos. 14). See fig. 4.
Use terminal (pos. 5) when an NO contact is to be
used to indicate high water level.
Use terminal (pos. 6) when an NC contact is to be
used to indicate high water level. See fig. 9.
Caution
Only one terminal is to be used.
The input for high water level (NO/NC) triggers the
alarm relay, and one or more pumps are started.
If the CIU unit incorporates a CIM 252 GSM/GPRS
module, an SMS message can be sent to a centrally
located SCADA system and/or directly to a mobile
phone.
If the system is connected to GRM, an SMS
message indicating high water level can be sent by
the GRM server, if requested.
Example
The input for high water level triggers the alarm
relay, and the red indicator light illuminates,
indicating abnormal operation.
The green indicator light indicating normal operation
is off. LED1 (pos. 11) flashes. The number of flashes
indicates the current alarm. See section
7.1.1 System alarms and warnings and fig. 9.
N
Green
230 V
Red
11
Detection of high water level
Fig. 9
5 6 7
12 13 14 15
15