Signal Cables; Bus Connection Cable - Grundfos TPE2 D Manual Del Usuario

Terminal Type
14 AI3
1 DI2
21 LiqTec sensor input 1
20 GND
22 LiqTec sensor input 2
10 DI3/OC1
4 AI1
2 DI1
5 +5 V
6 GND
A GENIbus, A
Y GENIbus, Y
B GENIbus, B
3 GND
15 +24 V
8 +24 V
26 +5 V
23 GND
25 GDS TX
24 GDS RX
7 AI2
Function
Analog input:
0-20 mA / 4-20 mA
0-10 V
Digital input, configurable
LiqTec sensor input
white conductor
Ground
brown and black
conductors
LiqTec sensor input
blue conductor
Digital input or output,
configurable.
Open collector: maximum
24 V resistive or inductive.
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V / 0-10 V
Digital input, configurable
Supply to potentiometer
and sensor
Ground
GENIbus, A (+)
GENIbus, GND
GENIbus, B (-)
Ground
Supply
Supply
Supply to potentiometer
and sensor
Ground
Grundfos Digital Sensor
output
Grundfos Digital Sensor
input
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V / 0-10 V

9.6 Signal cables

• Use screened cables with a cross-sectional area of minimum
2
20 AWG (0.5 mm ) and maximum 16 AWG (1.5 mm
external on/off switch, digital inputs, setpoint and sensor
signals.
• Connect the screens of the cable to frame at both ends with
good connection. The screens must be as close as possible to
the terminals. See fig. 20.
Fig. 20 Stripped cable with screen and wire connections
• Always tighten screws for frame connections whether a cable
is fitted or not.
• The wires in the motor terminal box must be as short as
possible.

9.7 Bus connection cable

9.7.1 New installations
For the bus connection, use a screened 3-core cable with a
cross-sectional area of minimum 20 AWG (0.5 mm
2
maximum 16 AWG (1.5 mm ).
• If the motor is connected to a unit with a cable clamp which is
identical to the one on the motor, connect the screen to this
cable clamp.
• If the unit has no cable clamp as shown in fig. 21, leave the
screen unconnected at his end.
A
1
2
Y
3
B
Fig. 21 Connection with screened 3-core cable
9.7.2 Replacing a motor
• If you have used a screened 2-core cable in the existing
installation, connect the cable as shown in fig. 22.
A
1
Y
2
B
Fig. 22 Connection with screened 2-core cable
• If you have used a screened 3-core cable in the existing
installation, follow the instructions in section
installations.
2
) for
2
)and
Motor
A
1
2
Y
3
B
Motor
A
1
Y
2
B
9.7.1 New
17