ABB ETL600 Instruction Manual page 340

Revision:
A
C.9.2 Test external real time clock synchronisation, if available
The external clock source with IRIG-B format has to be connected to the IRIG-B port at the
frontplate of P4LT/P4LU via external cable V9OV.
Testing the external synchronisation using HMI600:
1. Set the time on the PC a few hours back/forward
2. On the Equipment menu point to Commissioning and maintenance menu point to
Eventrecorder and click Set Clock.
3. Click Download date/time to RTC. This sets the RTC to the wrong time.
4. Click Upload date/time from RTC. The date and time displayed in the frame Read RTC
date & time should be correct and not correspond to the PC-date/time setting.
5. Click Cancel.
6. Set the time on the PC back to the correct time
C.10 Testing of NSD600 with interface G4AI, if present
Designations and abbreviations used:
Designation
(T.22/..1)
The NSD600 transmission time is tested by sending a loop test over the link.
NSD600 with interfaces G4AI is tested by applying test commands at the G4AI inputs and
measuring these test commands at the G4AI outputs.
To get back the input commands at the outputs of the local equipment, a local loop is necessary.
The local loop can be established according to chapter C.1.
Make a printout of the actual configuration of the equipment using HMI600 and test all G4AI inputs
and outputs.
C.10.1 Loop test transmission time over power line
The NSD600 loop test transmission time is checked using HMI600.
1. In the Commissioning and 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 half of the loop test time (T
the one-way transmission time, appears.
2. Click OK to close the dialog box.
Note:
C.10.2 Command transmission time
Check the transmission time of the NSD600 commands with the equipment operating via local
loop. The local loop can be established according to chapter C.1.
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 (24VDC, 48VDC, 110VDC, 220VDC)
•
G4AI input programmed as 'contact only':
Short circuit the input port
Transmit at few commands with a command / pause duration of about 100ms / 1000ms and
measure the nominal transmission time (T
Language:
EN
Meaning
Connector 1 of terminal block connected to rack position N22
Transmission times of twice the nominal transmission time as given in the
technical data shall serve as a guideline for the upper limit.
nominal
Page:
10/28
) of the local looped command.
1KHW001495-EN
), e.g.
Link