Chapter 7 Operator Control and Display Panel
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MUST400_User manual_EN_REV02 User Manual
Whether the ambient temperature is too high.
Whether the ventilation channel is blocked.
Whether fan fault happens.
Whether inverter overload time is out.
37
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.
38
Manual
Transfer
Byp
Transfer to bypass manually
39
Esc Manual Byp
Escape from “transfer to bypass manually” command. If UPS has been
transferred to bypass manually, this command enable UPS to transfer to
inverter.
40
Batt 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.
41
Batt Reverse
Battery cables are connected not correctly.
42
N# INV
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.
43
Ip 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.
44
Byp Fan Fail
At least one of bypass module Fans Fails
45
N#
Manual
Shutdown
The N# Power Module is manually shutdown. The power module shuts
down rectifier and inverter, and there’s on inverter output.
46
ManBoost
Manually force the Charger work in boost charge mode.
47
Manfloat
Manually force the charger work in float charge mode.
48
Arrears Shutdown
Reserved.
49
Lost
N+X
Redundant
Lost N+X Redundant. There is no X redundant powers module in system.
50
EOD Sys Inhibited
System is inhibited to supply after the battery is EOD (end of discharging)
