LIFTER ASSEM. (1.375" DIM. X) 9S2361 - Caterpillar

MMU Master Messages
Table 1
Event Type
Code Type Color
A Alarm Red
N Notice Yellow
L Log Green Note: In a multiple module system installation, an individual MMU can be in bypass (off-line) without the system being in bypass. If the remaining units are not overloaded, the system will stay on-line.
Table 2
UPS Status
Code Status
A AVR
B Bypass
D Discharge
NC No Change
S Shutdown
O On-line
Table 3
Log file Identifiers
Number Messages
300 Series 300
3001 Series 300 3.2 Firmware Support Load Information
If the UPS status is not on-line or if the UPS status is not discharge, the load will be protected during a utility outage.If the UPS status is AVR or if the UPS status is bypass, the load will be powered but not protected from a utility outage.If the UPS status is shut down, the load will not have power for a certain amount of time regardless of the utility source.
Table 4
Message Event Type UPS Status Description
_ lost on PCC N A, B (MMS only) The PCC has lost communication with one of the boards
_ closed while regulating error A B The bypass contactor (K3) closed while the UPS was online.
10 Min. Overload _ rated kW A B The UPS has gone to bypass due to a power overload condition.
2 Min. Overload _ rated kW A B The UPS has gone to bypass due to a power overload condition.
30 Sec. Overload _ rated kW A B The UPS has gone to bypass due to a power overload condition.
ATS Command Contact Closed L D The ATS command remote output contact has closed. If more than one remote output is programmed to the ATS Command, this message may be duplicated.
ATS Command Contact Opened L O The ATS command remote output contact has opened. If more than one remote output is programmed to the ATS command, this message may be duplicated.
Building Alarm [1-4] Detected N NC Customer supplied input to the SIO has closed
Bypass Contactor Closed L B The bypass contactor (K3) has closed.
Bypass Contactor Failed Open (Low Voltage) A S The bypass contactor