56 Shield T3 60 – 500KVA User Manual
inverter IGBTs. The UPS recovers automatically after the
over temperature signal disappears.
If over temperature exists, check:
Whether the ambient temperature is too high.
Whether the ventilation channel is blocked.
Whether fan fault happens.
Whether inverter overload time is out.
39
On UPS Inhibited
Inhibit system transfer from bypass to UPS (inverter). Check:
Whether the power module’s capacity is big enough for
load.
Whether the rectifier is ready.
Whether the bypass voltage is normal.
40
Manual Transfer
Byp
Transfer to bypass manually
41
Esc Manual
Bypass
Escape from “transfer to bypass manually” command. If UPS
has been transferred to bypass manually, this command
enable UPS to transfer to inverter.
42
Battery Volt Low
Battery Voltage is Low. Before the end of discharging,
battery voltage is low warning should occur. After this pre-
warning, battery should have the capacity for 3 minutes
discharging with full load.
43
Battery Reverse
Battery cables are connected not correctly.
44
Inverter
Protect
The N# Power Module Inverter Protect. Check:
Whether inverter voltage is abnormal
Whether inverter voltage is much different from other
modules, if yes, please adjust inverter voltage of the power
module separately.
45
Input Neutral
Lost
The mains neutral wire is lost or not detected. For 3 phases
UPS, it’s recommended that user use a 3-poles breaker or
switch between input power and UPS.
46
Bypass Fan Fail
At least one of bypass module Fans Fails
47
Manual
Shutdown
The N# Power Module is manually shutdown. The power
module shuts down rectifier and inverter, and there’s on
inverter output.
48
Manual Boost
Charge
Manually force the Charger work in boost charge mode.
49
Manual Float
Charge
Manually force the charger work in float charge mode.
50
UPS Locked
Forbidden to shutdown UPS power module manually.
51
Parallel Cable
Error
Parallel cables error. Check:
If one or more parallel cables are disconnected or not
connected correctly
If parallel cable round is disconnected
If parallel cable is OK
53
Lost N+X
Lost N+X Redundant. There is no X redundant powers
