Troubleshooting
8.5 Test the expansion cards in the Maintenance menu
8.5.1 Test the output card
In the TEST/MAINT menu, every output current can be set to certain values for testing reasons. If necessary, each output can be adjusted as well. Additionally, the current state of the outputs can be requested.
The output current can be set to certain values and then be adjusted with an offset and a factor.
To set these two parameters:
1.Set the SET OFFSET value to “0” and the SET FACTOR value to “1”.
2.Set the output current (CURRENT OUT) to “4 mA” and then only adjust the SET OFFSET value until the output current is really 4 mA.
3.Set the output current (CURRENT OUT) value to “20 mA”, then adjust the factor until the output current is really 20 mA and
4.Repeat the steps
TEST/MAINT OUTPUT SETUP mA OUTPUT INT/EXT
FUNCTION TEST
OUTPUT
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| CURRENT OUT | Select an output current and set at the appropriate output. | |
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| SET FACTOR | Default value: 1 | |
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| Adjusts the output current with an factor changed with this value. | ||
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| SET OFFSET | Default value: 0 | |
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| Adjusts the output current with an offset changed with this value. | ||
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| ALL | Default: 0 mA | ||
| Sets OUTPUT | |||
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| Default value: HOLD | |
| SET OUTMODE | Decides how other members react if they try to read an output current value while the output | ||
| current card is in the function test. As the value of the output current in the function test is not | |||
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| based on any calculations, other members reading this value probably have to be informed | |
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| about this special situation. | |
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| HOLD | Another reading member does not use the current read value, but uses the last value before the | |
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| output current card was in the function test mode. | ||
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| ACTIVE | Another reading member uses the current value even when the output current card is in the | |
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| function test mode. | ||
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| SET TRANSFER | The reading member uses an own substitute value for its own output value. | |
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STATUS OUTPUT | Indicates the status for each output current channel and probe which is read from the output | |||
current card. | ||||
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| SENSOR OK | The according output channel is working fine and the current output card is able to read the data | ||
| from the probe to set the output current. | |||
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| The according output current channel cannot get data from the probe because the probe is not | |
| SENSOR MISSING | responding anymore. In this case the output current has the value set in SYSTEM SETUP>SET | ||
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| TRANSFER or holds the according current value read the last time the probe was responding. | |
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| The output current card communicates with the according probe, but this probe has got an | |
| SENSOR FAIL | internal failure and cannot provide reliable data. In this case the output current has the value set | ||
| in the menu SET TRANSFER in SYSTEM SETUP or holds the according current value read the | |||
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| last time the probe was responding. | |
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