Omron E5ZD, Руководство по эксплуатации

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126
Temperature Measured by Sensor in Error
Possible cause Remedy Reference
Sensor polarity or wiring is wrong Wire correctly Sec. 3-5
Sensor type is wrong Use correct sensor Sec. 1-3-1
Sensor type switch setting is wrong Set DIP switch correctly Sec. 2-1-5
A sensor is connected which cannot be used
with the E5ZD. Use sensors that are compatible with the E5ZD, and set
the DIP switch. Sec. 1-4-2
Thermocouple is used without compensation
lead Connect compensation lead Sec. 1-4,
and Page
17 Terminal
Blocks
Compensation lead doesn’t match the thermo-
couple Use correct compensation lead Sec. 1-4,
and Page
17 Terminal
Blocks
Something other than the thermocouple or
compensation lead is connecting the thermo-
couple and terminal block. Use proper thermocouple connection Sec. 1-4,
and Page
17 Terminal
Blocks
Terminal block screws loose Tighten screws Page 17
Terminal
Blocks
The shorting pin is missing from between pins
1 and 2 of CN3 Short pins 1 and 2 together when using thermocouple Page 11
Connectors
Sensor wiring is broken or shorted Replace sensor Sec. 3-5
The special terminal blocks are not being used
for E5ZD-8H
j
KJM-E thermocouple inputs.
Use an E54-TR011 terminal block. Sec. 2-3-1
The special terminal blocks are not being used
for E5ZD-8H
j
PM-E platinum resistance ther-
mometer inputs.
E54-TR011 terminal blocks cannot be used. Use
through-type terminal blocks instead. Sec. 2-3-2
A sensor terminal has been left unconnected Connect dummy inputs to all unused sensor terminals Sec. 2-1-4
Noise or inductance is affecting signal Separate the sensor wiring from load and/or power sup-
ply lines Sec. 1-4-2,
3-2-3
Terminal block temperature varies or is too
high Install a block that will not get too hot or be subject to
excessive temperature variations Sec. 1-4-2
Measured temperature is out-of-range Use sensor of appropriate range or ensure that the tem-
perature is maintained to within the chosen range Sec. 1-3-1
Input shift is wrong Reset input shift value Sec. 4-2-19
Celsius-Fahrenheit designation is wrong Set switch correctly Sec. 2-3-10
Setting values are incorrect, e.g., decimal
points are wrong, etc. Input correct values Section 4
Host computer program is wrong Debug program Section 4
Troubleshooting Lists
Section 6-1