Meta System ARCHIMOD 100, Руководство по эксплуатации и техническому обслуживанию

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9-3
Operating and Maintenance Manual
Maintenance
code 5040275001 Rev. September 2010
9.4 HOT-SWAP REPLACING OF POWER MODULES OR ADDING NEW
MODULES
The ARCHIMOD
®
UPS allows any faulty power modules (Hot-Swap) to be replaced when they
are hot. This means that the load is powered by the UPS which still protects the user points
without them being powered by the bypass line. To do this the modules managed by the same
control unit have to be turned off but the load will be powered by the remaining power modules.
To use this function it is necessary for the UPS to be sized correctly. If the load percentage is
such that the Hot-Swap cannot be done without overloading, it is advisable to follow the main-
tenance procedure bypassing the UPS.
Example: in a 60kVA ARCHIMOD
® where there are 3 controls and 9 power modules, to replace
the module in the PM1 position, modules PM0, PM1 and PM2 will be turned off by means of
control number 1 (the first from the top).
During the Hot-Swap we will not have 20kVA of power which means that the maximum appli-
cable load, so as not to overload the UPS, is 40kVA.
1. Make sure that the load percentage applied to the UPS allows the Hot-Swap procedure
without overloading the UPS;
2. See which is the control for the power module you wish to service;
3. Briefly press (less than 0.5 seconds) the ON/OFF button of this control ;
4. Access the CM - Hot-swap menu, set OFF and press Enter: This control will turn all the mo-
dules off of the tunnels it controls and remains in standby;
5. Wait for all modules to turn off completely (front LED off);
6. Undo the securing screws of the modules you are going to replace and put them aside
without losing them;
7. Take the modules out to replace one at a time;
8. Check that on all the new power modules the two LEDs that can be seen through the two
holes on the cover are off. If they are on wait until they have turned off.
9. Put the new modules in, one at a time, and screw them in with the screws removed at step
6), without tightening them too much;
10. Briefly press (less than 0.5 seconds) the ON/OFF button on the control of the tunnel where
the power modules are being replaced;
11. Select the CM - Hot-swap menu, set ON and press Enter: the control will start all modules
automatically in the tunnels it controls.
12. Completion of the operation can be monitored by means of the progress bar.
Attention: by pressing the ON/OFF button continuously for more than 2 seconds the whole UPS
will turn off cutting power to the load.
Warning
Never touch the backplane of the tunnel left uncovered after the modules have been removed
– there are some dangerous live parts.
There are two holes on the cover of the power module through which it is possible to see
two LEDs; if they are on it means there is dangerous voltage on the rear connector. MAKE
ABSOLUTELY CERTAIN THAT THESE LEDs ARE OFF before handling the module. If they are
on, wait until they have turned off.
Attention: if one or more screws have been lost use only M4x20mm Allen screws to fix
the power modules. If the bottom screw of a module is not put back in place the control
prevents the tunnel from restarting.
Attention: if the bottom screw of a module is undone while the UPS is on, the control
switches that module off and all the modules it controls in order to make the UPS safe
in the event an attempt is made to take the power module out before having carried out
the Hot-Swap procedure explained in this paragraph 9.4.