Identification; Type Key; Installation - Grundfos IO 351 Montage- Und Betriebsanleitung

2. Identification

The variant (A or B) is stated on the nameplate on
the back. It can also be identified by the number of
terminal blocks. IO 351 A has five terminal blocks, IO
351 B has eight, see fig.
1
IO 351A
Type
96161720 - VO1
Product No.
2
100-240 Vac 50/60Hz - max. 9W
U
N
!
3
Made in Denmark
Fig. 3 Nameplate IO 351 A
1
IO 351B
Type
96161730 - VO1
Product No.
2
100-240 Vac 50/60Hz - max. 9W
U
N
!
3
Made in Denmark
Fig. 4 Nameplate IO 351 B
Pos. Description
1 Type designation
2 Product/version number
Permissible supply voltage, frequency and
3
maximum power consumption
4 Production code (year, week)
5 Serial number

2.1 Type key

Code Meaning
IO Input-output unit
35 Controller series
1 Model number
A For pumps with fixed speed
B For pumps with fixed speed and pumps
controlled by external frequency converters or
as input-output module
1 and 2.
5
Serial No.
P .c.
4
OPEN TYPE PROCESS
CONTROL EQUIPMENT
30 XP
5
Serial No.
P .c.
4
OPEN TYPE PROCESS
CONTROL EQUIPMENT
30 XP
IO 3 5 1

3. Installation

IO 351 is only intended for factory wiring.
Before installation check that the
• variant corresponds to the one ordered.
• IO 351 is suitable for the supply voltage and
frequency on the installation site.
• IO 351 has not been damaged during
transportation.
Warning
Before installing the IO 351, make sure
that the electricity supply has been
switched off and that it cannot be
accidentally switched on.
The installation must be carried out by authorized
personnel in accordance with local regulations.
All safety regulations must be observed on the
installation site.
Warning
The terminals L and N as well as 76-81
and 82-89 may be connected to dangerous
contact voltage. External control voltage
from other groups may occur.
Warning
All wires to units outside the control panel
must be of the type H05VV-F according to
CENELEC HD21 (to avoid injury from
touching wires).
Warning
The installation must incorporate a circuit
breaker in order to switch off the mains
supply. It must be close to the IO 351 and
easily accessible for the operator. It must
be marked as circuit breaker for IO 351.
B
The circuit breaker must be according to
IEC 60947-1 and IEC 60947-3.
Warning
The terminals are only separated with
basic insulation. Therefore, do not connect
a PELV circuit to a terminal adjacent to a
terminal connected to live voltage.
PELV circuits and live wires must be
separated with double or reinforced
insulation.
7