SMA Modbus EDMM-10, Руководство по установке

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6 Connection SMA Solar Technology AG
Installation Manual 33 EDMM-WAGO-IO-IA-en-11
-R3
R 1
-R4
R 2
+R3 +R4
-R2
+R2 +R1
-R1
Figure 25: Example connection of the 2/4-channel analog input terminal (TempIN)
6.5.5.4 4-channel analog input terminal 4 mA to 20 mA
The 4-channel analog input terminal 4 mA to 20 mA has four input channels for field signals and processes signals of
standard size from 4 mA to 20 mA. The input signal is galvanically isolated from the system level with a 12-bit
resolution. The sensors are connected to the CAGE CLAMP® connections AI 1 and ground or AI 2, AI 3, AI 4 and
ground. The ground connections for all 4 channels are connected to one shared 0 V ground potential.
A red LED indicates a wire break or a value outside of the measurement range for each channel. The internal system
voltage is used for voltage supply.
For detailed information on evaluation of the LED statuses (see Section 4.8 "LED Signals", page 16).
C
D
A
B F
E
G
H
Figure 26: Connections of the 4-channel analog input terminal 4 mA to 20 mA
Position Channel Connec-
tion
Designation Designation
A 1 1 AI 1 Analog input 1: signal voltage
B 2 Ground Analog input 1: ground
C 2 3 AI 3 Analog input 3: signal voltage
D 4 Ground Analog input 3: ground
E 3 5 AI 2 Analog input 2: signal voltage
F 6 Ground Analog input 2: ground
G 4 7 AI 4 Analog input 4: signal voltage
H 8 Ground Analog input 4: ground