Grundfos E Serie Instrucciones De Instalación Y Funcionamiento página 10

NC C NO L1 L2 L3
0-10 V
0/4-20 mA 4-20 mA
1/0
B Y A
1 9 8 7
STOP
RUN
0-10 V
0/4-20 mA
10K
6 5 4 3 2
Fig. 8 Connection terminals - TPE, NKE, NKGE and NBE,
NBGE
10
1: Digital input
9: GND (frame)
8: +24 V
7: Sensor input
B: RS-485B
Y: Screen
A: RS-485A
6: GND (frame)
5: +10 V
4: Setpoint input
3: GND (frame)
2: Start/stop
NC C
0-10 V
0/4-20 mA 4-20 mA
0/1
B Y A
1 9 8 7
STOP
RUN
0/4-20 mA 0-10 V
10K
6 5 4 3 2
Fig. 9 Connection terminals - TPED
A galvanic separation must fulfil the requirements for reinforced
insulation including creepage distances and clearances specified
in EN 60335.
5.4 Electrical connection - three-phase pumps, 11-22
kW
Warning
The user or the installer is responsible for the
installation of correct earthing and protection
according to and local regulations. All operations
must be carried out by qualified staff.
Warning
Never make any connections in the pump terminal
box unless all electric supply circuits have been
switched off for at least 5 minutes.
Note for instance that the signal relay may be
connected to an external supply which is still
connected when the mains supply is disconnected.
Warning
The surface of the terminal box may be above 70 °C
when the pump is operating.
NO L1 L2 L3
1: Digital input
9: GND (frame)
8: +24 V
7: Sensor input
B: RS-485B
Y: Screen
A: RS-485A
6: GND (frame)
5: +10 V
4: Setpoint input
3: GND (frame)
2: Start/stop