Commissioning Procedure After Power Up - Siemens TC12 Installation, Commissioning And Maintenance Handbook

PCB Mounting plate
PCB Frame
Rack Cross members
Rack Side plate
Case of power supply
Power supply 0 V (pin 4 on OTU PSU 14-way connector, see Figure 18).
All earthed points on any other equipment that may have been attached to the
OTU mechanics.
3.3.1.7 Insulation Resistance Test Procedure
Personnel should take care that they do not come into contact with the high
Make sure that the Outstation is not connected to the mains but that all fuses are
in place and that the PCB is connected.
Make sure that the Outstation mains plug is fully pushed into the Outstation mains
socket.
Set the insulation meter to 1000 V DC.
Connect the LIVE and NEUTRAL of the Outstation mains wire together.
Connect the meter to measure between the Outstation mains wire EARTH and the
combined LIVE and NEUTRAL.
Allow the meter reading to settle during the test.
The insulation resistance should be not less than 10 MOhm.

3.3.2 Commissioning Procedure after Power Up

Check that the power LED (LP7) comes on when the Outstation is powered up.
Note: If the system fault LED lights on power up (see section 3.4.1 for LED
positions) then switch the Outstation off. Make sure the lithium battery
switch on the PCB is in the on position and then power the Outstation
back up again.
Configure the Outstation using a handset terminal connected to the 25-way 'D'
type connector, SK1, on the PCB. See section 3.3.3 for an explanation of
commands that need to be entered.
If required the wiring of OTU inputs and outputs (cable 667/1/22693/000) can be
checked as follows:
Checking OTU Output wiring:
Attach a handset to the controller and enter controller handset commands
that display the status of the 16 controller inputs. Attach a handset to the
OTU and enter handset commands to set different output bit patterns on the
OTU outputs. Ensure that the controller inputs displayed on the handset
666/HE/43100/000
TC12 Installation, Commissioning & Maintenance Handbook
Safety Note
voltages generated by the Test Instrument.
Page 87 Issue 10