Sentera Controls RTVS1, Монтаж и эксплуатация

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MIW-RTVS1-EN-000 - 03 / 11 / 2020 10 - 12
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TRANSFORMER FAN SPEED CONTROLLER WITH
MODBUS RTU COMMUNICATION
RTVS1
Fig. 4 Automatic mode ‘forward’: Low to high speed
68 85
110
0
140
170
190
230
17 34 51
Δ
25 50 75 100 1
0
Δ
140
170
190
230
Modbus RTU
control signal
[%]
Hysteresis
2—10 %
Uout (VAC)
3.2.2 Automatic reverse mode. See operational digram below:
The higher the Input value, the lower the output. See the
operational diagram below for an example with steps from 2 to 5
.
An example of Auto Reverse mode, the steps threshold configuration
is as follows: Step 1 – 0 %, Step 2 – 75 %, Step 3 – 50 %, Step 4 – 25
%, Step 5 – 1 % (can be as low as 0,1 %) is given in
Fig. 5 below. When
the Input value is above 1%, device switches to Step 5, above 25 %
Step 4, above 50 % Step 3, above 75 % Step 2 up to 100 %. When
the Input value decreases, the hysteresis delta is subtracted from the
threshold level and the device changes the step (see
Fig. 5
).
Fig. 5 Automatic mode ‘reverse’: High to low speed
68 85
110
0
140
170
190
230
17 34 51
Δ
25 50 75 100 1
0
Δ
140
170
190
230
Modbus RTU
control signal
[%]
Uout (VAC)
Hysteresis
2—10 %