Grundfos IO 111 User Manual

English (GB)
10
5.3.1 Connecting the WIO sensor
Fig. 5 Connecting the WIO sensor
5.3.2 EMC-correct installation
It is especially important to ensure an EMC-correct
installation of pumps with frequency converter.
The following rules must be observed:
• Connect the cable screen to earth.
• Do not twist screen ends, as this will destroy the
screen effect at high frequencies. Use cable
clamps as shown in fig. 6.
• It is important to ensure a good electric contact
from the mounting plate through the mounting
screws to the metal cabinet of the frequency
converter.
• Use toothed washers and a galvanically
conducting mounting plate.
Fig. 6 Screen fixed with cable clamp
6. Settings
6.1 Potentiometer
The warning limit for stator insulation resistance is
set by means of a potentiometer (pos. 4) see fig. 1.
The limit can be set between 10 and 1 MΩ.
Fig. 7 Potentiometer
6.2 DIP switches
The IO 111 must be configured for the pump
connected by means of the DIP switches (pos. 11),
see fig. 1.
Fig. 8 DIP switches
A configuration alarm will be given if
• the configuration does not correspond to the
pump connected.
• the configuration fault is of safety-related
importance (see 8. Indication, point 6).
A configuration warning will be given if
• the configuration fault is of function-related
importance (see 8. Indication, point 15), see
12. Fault finding.
TM04 0304 0308
TM03 1080 1005
Reset
P1 P2 P3 P4 P5
I1 I2 I3
ON DIP
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White
Brown
WIO sensor
Note the insulating plastic
layer between screen and
sheath.
Note
The alarm limit is 1 MΩ.
TM03 3415 0306
TM03 0678 0505
1 MΩ 10 MΩ
ON DIP
12345678910
Grundfos.bk Page 10 Tuesday, January 25, 2011 12:56 PM

Grundfos IO 111 Specifications

General

Brand	Grundfos
Model	IO 111
Category	Control Unit
Language	English