Clearing Faults; Control Signals; Stator Heating Control; Speed Control - Emerson EV3 Series Application Manuallines

Figure 10: Analog control board code selection
NOTE: The binary code represents the binary transformation of the package code starting
from right to left (from 6 to 1).

5.2.2 Clearing faults

Faults are cleared automatically as long as the cause of the fault is no longer existing. In case of a
drive fault the analog board will automatically send the clear fault command to the drive. Once the
fault on the drive is gone the fault gets reset: after a delay time of approximately 30 seconds the drive
will return to normal operation mode.

5.2.3 Control signals

To control the compressor the analog board needs an enable signal between 12 and 24 VDC at
terminal F.
To control the speed and the stator heating demand a 0...10 VDC signal is required at terminal C.
A PWM feedback signal is available at terminal B.

5.2.4 Stator heating control

To control the stator heating of the compressor, the analog control board considers the range
between 1 and 1.9 V – see Table 15. The actual heating power depends on the type of compressor.
Voltage [V] Heating power [%]
≥ 1.0
≥ 1.1
≥ 1.2
≥ 1.3
≥ 1.4
≥ 1.5
≥ 1.6
≥ 1.7
≥ 1.8
≥ 1.9
Table 15: Analog stator heating control mode

5.2.5 Speed control

To control the compressor speed, the analog control board considers the range between 2 and 9 V
of the analog input signal as the setpoint – see Table 16.
Voltage [V]
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Speed [Hz] = (Voltage-2) * 15 + 15 ; [2 ≤ Voltage ≤ 9]
Table 16: Analog speed control mode
18
10
20
30
40
50
60
70
80
90
100
Speed [Hz] Speed [rpm]
15
30 1800
45 2700
60 3600
75 4500
90 5400
105 6300
120 7200
120 7200
900
AGL_Sol_EV3_E_Rev_01