AEC IST5 Series, Service Manual

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48
UPS Thyr.L3 Open
C.
UPS has detected that inverter L3 thyristor can not be activated.Load will be
transferred to bypass line.
49
BYP Thyr.L1 Open
C.
UPS has detected that bypass L1 thyristor can not be activated.Load will be
transferred to inverter line.
50
BYP Thyr.L2 Open
C.
UPS has detected that bypass L2 thyristor can not be activated.Load will be
transferred to inverter line.
51
BYP Thyr.L3 Open
C.
UPS has detected that bypass L3 thyristor can not be activated.Load will be
transferred to inverter line.
52 Parl. Phs. Rot. Err.
One or more of UPSs which operate in paralel mode do not match in phase
sequence.
53 Battery Start Starting through battery command has been given to UPS .
54 Parl. Start Error One or more of UPSs which operate in paralel mode could not start to operate.
55 Inverter Fault UPS couldn't prepare the inverter voltage.
56 Output Off Static transfer switches all disabled. The loads can not be energized.
57 Normal Mode
UPS is operating in the normal mode,load are energized through rectifier –
inverter line.
58 Battery Mode
UPS is operating in the battery mode,load are energized through battery –
inverter line.
59 Bypass Mode UPS is operating in the bypass mode,load are energized through bypass line.
60
Maint. Bypass
Mode
UPS is operating in the maintenance bypass mode,load are energized through
maintenance bypass line.
61 Parallel Mode
2 or more UPS are operating in power sharing mode. Load is fed through UPSs’
inverter lines.
62 Test Mode
UPS has switched to battery test mode,loads are energized through rectifier-
battery- inverter line as source sharing.
63
Manual Switch to
UPS
Switching to inverter(normal) mode command has been given via front panel.
64
Output Voltage
Error
Output voltage is detected during the period of starting UPS .UPS has been
stopped.
65 PFC Stop Cmd.
Abnormal stuation is detected during the moment of rectifier operating.UPS
has stopped itself.
66
Manuel Start
Command
Start command is given via UPS command menu.
67
Manuel Stop
Command
Stop command is given via UPS command menu.
68 UPS Stopped UPS has been stopped.
69 Bypass Problem
UPS has switched to bypass mode so many times i a short period,UPS will be
shut down.
70
Parameters
Changed
Device-related parameters were changed on the service menu
71 Batterys Changed Battery replacement date has been changed.battery statistics will be reset.
72
Load impact
Transfer
The load which can not be handled by inverter is activated. Loads will be
transferred to bypass line.
73 Parallel Command
UPS which is operating in paralel mode has been given a command to change
the status of static switches.