Grundfos VLSE, Инструкция по установке и эксплуатации

Страница: 17 / 48

17
English (US)
Group 3: Power supply (terminals L1, L2, L3)
Fig. 12 Connection terminals
A galvanic separation must fulfill the requirements for reinforced
insulation including creepage distances and clearances specified
in EN 61800-5-1.
15.3 Signal cables
• Use screened cables with a conductor cross-section of
min. 28 AWG and max. 16 AWG for external on/off switch,
digital input, setpoint and sensor signals.
• Connect the screens of the cables to frame at both ends with
good frame connection. The screens must be as close as
possible to the terminals. See fig.
13 .
Fig. 13 Stripped cable with screen and wire connection
• Always tighten screws for frame connections whether a cable
is fitted or not.
• Make the wires in the pump terminal box as short as possible.
15.4 E-pump electrical connections
15.4.1 Type key
TM
05
29
8
6
08
12
6: GND (frame)
5: +10 V
4: Setpoint input
3: GND (frame)
2: Start/stop
Grou
p 2
Grou
p 3
20: PT 100 B
19: PT 100 B
18: PT 100 A
17: PT 100 A
16: GND (frame)
15: +24 V
14: Sensor input 2
13: GND
12: Analog output
11: Digital input 4
10: Digital input 3
1: Digital input 2
9: GND (frame)
8: +24 V
7: Sensor input
B: RS-485B
Y: Screen
A: RS-485A
Gro
up 1
T
M
0
2
1
32
5
0
9
0
1
DPI +T 0-6 G 1/2" 020 E, Set
Type
Temperature sensor:
+T = with temperature Sensor
Flow range [m
3
/h]
Thread size
Output signal:
020 = 4-20 mA
O-ring material:
E = EPDM
F = FKM
Set = Complete pressure transmitter