Grundfos CU 362 Instrucciones De Instalación Y Funcionamiento página 13

5.2 IO 351B
IO 351B
Module Signal Terminal Float switch
Analog inputs
AI1 51
IO 351B-1
AI2 54
Digital inputs
DI1 10
IO 351B-1
DI8 44
DI9 46
Digital outputs
DO1 77
DO2 79
DO3 81
DO4 82
IO 351B-1
DO5 84
DO6 86
DO7 88
Analog outputs
AO1 18
IO 351B-1
AO2 22
AO3 26
PTC inputs
PTC1 30
IO 351B-1
PTC2 32
2) Connect either an energy meter or a flowmeter to the IO 351B-1 (DI1).
3) See section Float switches.
Related information
5.3 Float switches
Description
The IO 351B is a general I/O module.
The IO 351B communicates with the CU 362 via
GENIbus.
Via the IO 351B inputs and outputs, the CU 362
controls the pumps according to the built-in
algorithms.
Analog sensor
User-defined
-
sensor 2
User-defined
-
sensor 3
Energy meter or Energy meter or
2) 2)
flowmeter flowmeter
3) -
Float switch
3)
Float switch -
Start of pump 1 Start of pump 1
Start of pump 2 Start of pump 2
All alarm relays All alarm relays
VFD 1, reverse VFD 1, reverse
VFD 2, reverse VFD 2, reverse
- -
User-defined User-defined
alarms alarms
VFD frequency,
-
pump 1
VFD frequency,
-
pump 2
- -
PTC, pump 1 PTC, pump 1
PTC, pump 1 PTC, pump 1
Inputs and outputs
IO 351B inputs and outputs:
• GENIbus communication (RS-485)
• two analog inputs for connection to sensors
with current (0-20 mA/4-20 mA) or voltage
(0-10 V)
• three analog outputs, 0-10 V, max. 2 mA
• nine digital inputs
• seven digital outputs, 240 VAC, 2 A
• six PTC inputs.
Level control and safety
Analog sensor
Analog sensor
and safety float
and mixer
switches
User-defined User-defined
sensor 2 sensor 2
User-defined User-defined
sensor 3 sensor 3
Energy meter or Energy meter or
2)
flowmeter flowmeter
- -
- -
Start of pump 1 Start of pump 1
Start of pump 2 Start of pump 2
All alarm relays All alarm relays
VFD 1, reverse VFD 1, reverse
VFD 2, reverse VFD 2, reverse
- Mixer start
User-defined User-defined
alarms alarms
VFD frequency, VFD frequency,
pump 1 pump 1
VFD frequency, VFD frequency,
pump 2 pump 2
- -
PTC, pump 1 PTC, pump 1
PTC, pump 1 PTC, pump 1
Analog sensor,
mixer and safety
float switches
User-defined sensor
2
User-defined sensor
3
Energy meter or
2) 2)
flowmeter
-
-
Start of pump 1
Start of pump 2
All alarm relays
VFD 1, reverse
VFD 2, reverse
Mixer start
User-defined alarms
VFD frequency,
pump 1
VFD frequency,
pump 2
-
PTC, pump 1
PTC, pump 1
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