ABB ETL600 Instruction Manual page 299

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B.9.3 NSD600 loop test
The NSD600 is tested by issuing a loop test via HMI600.
In the Commissioning & maintenance ... dialog box click NSD600 send loop test / TPE1 and –
if TPE2 is configured – NSD600 send loop test / TPE2.
If the loop test is successful, a dialog box indicating the loop test time (T
Click OK to close the dialog box.
B.9.4 Command transmission time
Check the transmission time of the NSD600 commands over the link, e.g. by means of an
oscilloscope.
How to activate an input command depends on the jumper settings on G4AI.
•
G4AI input programmed as 'contact and battery voltage':
Inject a signal at input port with the voltage level U1 according to the jumper settings on
G4AI (24 VDC, 48 VDC, 110 VDC, 220VDC)
•
G4AI input programmed as 'contact only':
Short circuit the input port
Transmit at few commands with a command / pause duration of about 100 ms / 1000 ms and
measure the actual transmission time for the command from the local station to the remote station.
Note:
B.9.5 Reset counters
After NSD600 testing reset the counters by using HMI600.
From the Equipment menu point to Commissioning and maintenance menu point to
Eventrecorder and click Reset counter.
In the Reset Counter box click check box Reset all counters
Click OK
B.10 Testing of O4LE, if present
B.10.1 Service phone
Only a functional test must be done. The buzzer, the ringing of the connected service phone, and
the audibility between the two service phones will be tested.
B.10.2 Hot line direct phone
The following tests must be done only, if the operation mode 'Hot line direct phone' is configured.
1. A functional test must be done to check the ringer. Connect on both sides of link a phone,
make a call from one side to remote and vice versa.
2. Check the Output level of speech:
Use coupling bridges similar to that, shown in Figure 2. The resistor R should be chosen
to 500 Ω, included the resistance of the two coils. If the coupling bridge has polarity.
Check first polarity at appropriate external cable, terminal telephony, 0a-0b.
3. Feed a 800 Hz tone, with the configured level from remote side into remote equipment.
Take a measurement of the output level at the local equipment. It should be in ±1 dB
range of the configured output level from the local equipment.
Language:
EN
The nominal transmission time as given in the technical data shall serve as a
guideline for the mean value of several commands.
Page:
1KHW001493-EN
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