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Error Code Display Symbol Error Description Corrective Action
36 LLL1
Input 1 ( IN1 ) signal too
low
1.Check if the input 1
with IN1 type selection.
2.Check the connection
polarity of input 1
sensor.
3.Replace input 1
sensor.
37 HHH1
Input 1 ( IN1 ) signal too
high
1.Check if the input 1
se
with IN1 type selection.
2.Replace input 1
sensor.
38 SB2E
Input 2 ( IN2 ) sensor
break, or input 2 current
below 1 mA if
4-20 mA is selected, or
input2 voltage below
0.25V if 1 - 5V is
selected
Replace input 2 sensor.
39 SB1E
Input 1 ( IN1 ) sensor
break, or input 1 current
below 1 mA if
4-20 mA is selected, or
input1 voltage below
0.25V if 1 - 5V is
selected
Replace input 1 sensor.
40 ADER
A to D converter or
related component(s)
malfunction
Return to factory for
repair.
Table 4-34.Error Codes and Corrective Actions