Toshiba AD268 56

56 Analog I/O Modules (AD268 / DA264 / TC218)

7. Troubleshooting PART 2 DA264

7. Troubleshooting

7.1 RAS information

The RUN LED is provided on the front of the DA264. When the DA264 is operating normally,

this LED is lit.

Also the module status information is provided in the DA264‘s buffer memory (addresses

H800C to H800F). This information is useful for troubleshooting.

Refer to section 6 for the module status information and how to read it.

7.2 Troubleshooting

The table below shows the trouble and its remedy.

Trouble Module

status info LED Module operation Cause Remedy

Output type

setting error Bit 8 is ON ON

(if the error

occurs in all

channels, it

is OFF)

The D/A conversion

continues based on

the previous settin g.

Invalid output type

parameter was set. Set the correct

output type

parameter.

D/A

conversion

data limit ov er

Bit D is ON ON The D/A conversion

data of the channel

is limited by the limit

value.

The written D/A

conversion data is

out of the range.

Check the output

rage and write

the correct data.

External 24V

error Bit E is ON O F F T he D/A conv ersion

is stopped. Output

signal is 0V/0mA.

Internal ±15V

voltage is not

normal.

Check the

external 24Vdc

power supply.

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Contents

Main Important Information Safety Precautions Safety Symbols ! ! Safety Precautions 2 About This Manual About This Manual Related Manual Table of Contents Part 1 8 Channel Analog Input Module AD268 4 Part 2 4 Channel Analog Output Module DA264 Part 3 8 Channel Thermocouple Input Module TC218 Page Page 8 1. Introduction 1.1 AD268 Functions Page 10 2. Specifications Users Manual 11 12 3. Input Type Setting 3. Input Type Setting 3.1 Jumper plug setting 1 3 3.2 Parameter setting by software 14 4. Wiring AD268 terminal block Users Manual 15 Voltage input External 24Vdc power supply Current input 16 4. Wiring Page 18 5.2 A/D conversion data Users Manual 19 5V range: 0 D = 3200 A 20 0 to 10V range: D = 3200 A Page 22 1 to 5V / 4 to 20mA range: 4 to 20mA range: D = 800 A - 3200 1 to 5V range: D = 3200 A - 3200 Page 24 6. Parameters The contents of the AD268's buffer memory are as follows. Users Manual 25 26 Page 28 Page 30 6.2 Parameter setting procedure 6.3 Sample program for se tting the parameters 32 7. Troubleshooting Users Manual 33 Page Page 36 1. Introduction 1.1 DA264 Functions Page 38 2. Specifications Users Manual 39 40 3. Output Type Setting 3. Output Type Setting 3.1 Parameter setting by software Users Manual 41 DA264 terminal block 42 4. Wiring External 24Vdc power supply Voltage output Current output Page 44 5.2 D/A conversion data 46 5V range: Users Manual 47 0 to 10V range: 48 0 to 5V / 0 to 20mA range: 0 to 20mA range: A = 1.25 D 0 to 5V range: Users Manual 49 1 to 5V / 4 to 20mA range: 4 to 20mA range: A = 1.25 D + 4000 1 to 5V range: A = 0.3125 D + 1000 50 Page 52 6. Parameters Page 54 6. Parameters 6.2 Sample program to access the parameters 56 7. Troubleshooting Page Page Page 60 1. Introduction 1.1 TC218 Functions Page 62 2. Specifications Users Manual 63 64 3. Input Type Setting 3. Input Type Setting 3.1 Jumper plug setting 1 3 3.2 Parameter setting by software 66 4. Wiring TC218 terminal block Users Manual 67 100mV input (CH1 to CH8) Thermocouple input CH1 CH2 to CH8 Connect the thermistor attached to the TC218 68 4. Wiring Page 70 5.2 A/D conversion data Users Manual 71 Thermocouple (type K) input: 72 Thermocouple (type J) input: Users Manual 73 Thermocouple (type E) input: 74 Users Manual 75 The contents of the TC218's buffer memory are as follows. 76 Page 78 Page 80 6.2 Parameter setting procedure 82 6.3 Sample program for se tting the parameters Page 84 7. Troubleshooting