Network UPS Tools - Voltronic Power UPS Protocol

Communication

RS232C

9 pins female D-type connector - only 3 wires: TX, RX (crossed) and GND

Baud rate	2400 bps
Data length	8 bits
Stop bit	1 bit
Parity	none

USB

Serial over USB with cypress protocol

Accepted queries and commands

All commands, queries and UPS’s replies are terminated by <cr>

Command beginning with Q → query

UPS replies

(ACK → Command accepted

(NAK → Command/Query rejected or invalid

UPS status

QGS

Query UPS for status

(MMM.M NN.N PPP.P QQ.Q RRR.R SSS TTT.T UUU.U VVV.V XXX.X YYY.Y b11..b0

e.g.

(234.9 50.0 229.8 50.0 000.0 000 369.1 ---.- 026.5 ---.- 018.8 100000000001

Where:

MMM.M

Input voltage

NN.N

Input frequency (Hz)

PPP.P

Output voltage

QQ.Q

Output frequency (Hz)

RRR.R

Output current (Ampère)

SSS

Load level (%)

TTT.T

* unknown *

UUU.U

* unknown *

VVV.V

Battery voltage (Volt) [or VV.VV]

XXX.X

* unknown *

YYY.Y

UPS temperature (° Celsius)

bit11..b0

→ 12 bit status - 1 means:

bit#	Description
`11`	UPS Type: `00` → standby `01` → line-interactive `10` → on-line
`10`
`9`	Battery Mode (= mains absent)
`8`	Battery Low
`7`	Bypass/ECO Mode active, `0` → Bypass/ECO Mode inactive or without output P00/P08: AVR Mode on/off
`6`	Fault found
`5`	* unknown *
`4`	Test in progress
`3`	Shutdown Active (also as a consequence of `Sn`/`SnRm` commands, while `n` minutes pass)
`2`	Beeper Off/muted, `0` → Beeper On/enabled (changed through `BZON`/`BZOFF`)
`1`	* unknown *
`0`	* unknown *

QS
Q1

Query UPS for status (short) (old)

(MMM.M NNN.N PPP.P QQQ RR.R SS.S TT.T b7..b0

e.g.

(209.7 209.7 219.7 020 50.0 41.8 23.3 00000001

Alternative reply

(MMM.M NNN.N PPP.P QQQ RR.R S.SS TT.T b7..b0

e.g.

(002.9 000.0 000.0 000 00.0 2.02 21.0 10000001

Where:

MMM.M

Input voltage

NNN.N

Fault voltage

PPP.P

Output voltage

QQQ

Load level (%)

RR.R

Output frequency (Hz)

SS.S

Battery voltage [or S.SS]

TT.T

UPS temperature (° Celsius)

b7..b0#

→ 8 bit status - 1 means:

bit#	Description
`7`	Utility Fail (Immediate)
`6`	Battery Low
`5`	Bypass/Boost or Buck Active
`4`	UPS Failed
`3`	UPS Type is Standby `0` is Online
`2`	Test in progress
`1`	Shutdown Active
`0`	Beeper On

QBV

Query UPS for battery information

(MM.M NN PP QQQ RRR

e.g.

(026.5 02 01 068 255

Where:

`MM.M`	Battery voltage
`NN`	Number of batteries (that make a battery pack)
`PP`	Number of battery packs in parallel
`QQQ`	Battery capacity (%)
`RRR`	Remaining backup time (minutes)

QLDL

Query for last seen minimum and maximum load level

(MMM NNN

e.g.

(022 025

Where:

`MMM`	Last seen minimum load level (%)
`NNN`	Last seen maximum load level (%)

QMOD

Query UPS for actual operational mode (→ see Operational Modes)

Possible replies:

`(P`	Power On Mode
`(S`	Standby Mode
`(Y`	Bypass Mode
`(L`	Line Mode
`(B`	Battery Mode
`(T`	Battery Test Mode
`(F`	Fault Mode
`(E`	ECO Mode
`(C`	Converter Mode
`(D`	Shutdown Mode

Rated information

QMD

Query UPS for rated information #1

(MMMMMMMMMMMMMMM NNNNNNN PP Q/R SSS TTT UU VV.V

e.g.

(#######OLHVT1K0 ###1000 80 1/1 230 230 02 12.0

Where:

`M..M`	UPS model (15 characters, filled with spaces or `#`)
`N..N`	UPS rated VA (7 characters, filled with spaces or `#`)
`PP`	Output power factor (%)
`Q/R`	Input phases/Output phases
`SSS`	Rated input voltage
`TTT`	Rated output voltage
`UU`	Number of batteries (that make a battery pack)
`VV.V`	Rated voltage (as per battery)

QRI

Query UPS for rated information #2

(MMM.M NNN PPP.P QQ.Q

e.g.

(230.0 004 024.0 50.0

Where:

`MMM.M`	Rated output voltage
`NNN`	Rated output current (Ampère)
`PPP.P`	Rated battery voltage (as per battery pack) [or `PP.PP`]
`QQ.Q`	Rated output frequency (Hz)

I

Query UPS for rated information #3 (old)

#MMMMMMMMMMMMMMM NNNNNNNNNN PPPPPPPPPP

e.g.

#                OLHVT1K0   00322.02

Where:

`M..M`	UPS manufacturer (15 characters fixed length, filled with spaces)
`N..N`	UPS model (10 characters fixed length, filled with spaces)
`P..P`	UPS firmware version (10 characters fixed length, filled with spaces)

F

Query UPS for rated information #4 (old)

#MMM.M NNN PPP.P QQ.Q

e.g.

#220.0 004 036.0 50.0

Where:

`MMM.M`	Rating voltage
`NNN`	Rating current (Ampère)
`PPP.P`	Battery voltage (as per battery pack) [or `PP.PP`]
`QQ.Q`	Nominal frequency (Hz)

QID

Query UPS for serial number

(NNNNNNNNNNNNNNNNNNN

e.g.

(0000000000000000000

Where:

N..N

UPS serial number (not fixed length)

QVFW

Query UPS for firmware version

(VERFW:NNNNN.NN

e.g.

(VERFW:00322.02

Where:

N..N

UPS firmware version

QMF

Query UPS for manufacturer

(NNNNNNNN

e.g.

(####BOH

Where:

N..N

UPS manufacturer (not fixed length, filled with spaces or #)

QPAR

Query UPS for master/slave for UPSes in parallel

Possible replies:

`(001`	Master
`(002`	Slave
`(003`	Slave

QPI

Query UPS for the protocol to use

(PINN

Where:

`NN`	Protocol used by UPS

Known replies:

`(PI00`	e.g.
`(PI01`	e.g. Galleon 1KVA-3KVA-ISO TX
`(PI02`	e.g. Galleon 6KVA/10KVA-ISO TX
`(PI03`	3-phase input/1-phase output (e.g. Galleon 3-phase in/1-phase out 10KVA/15KVA/20KVA)
`(PI08`	e.g.
`(PI09`	2-phase input/output (e.g. Galleon 2-phase in/2-phase out 6KVA/10KVA)
`(PI10`	3-phase input/output (e.g. Galleon 3-phase in/3-phase out 10KVA/15KVA/20KVA)
`(PI13`	e.g.
`(PI14`	e.g.
`(PI31`	e.g.
`(PI98`	Old models → megatec with `(ACK`/`(NAK` replies
`(PI99`	e.g.
`(NAK`	Old models → megatec with `(ACK`/`(NAK` replies

Error/Warning status

QWS

Query UPS for warning status

(b1b2..b63b64

e.g.

(0000000100000000000000000000000000000000000000000000000000000000

Each bit set to 1 corresponds to an error/warning. 0 means no warning/error → see Warnings

QFS

Query UPS for fault status

(MM NNN.N PP.P QQQ.Q RR.R SSS.S TTT UUU.U WWW.W VVV.V XXX.X YYY.Y ZZZZZZZZ

e.g.

(11 234.9 50.0 229.8 50.0 000.0 000 369.1 ---.- 026.5 ---.- 018.8 10000000

Where:

`NN`	Type of fault found (→ see Fault Handler)
`N..Z`	Short status

Alternative reply

(OK

→ No fault

Use this query only if a fault is found in 12bit status of QGS otherwise you’ll get a fake reply, such as:

(14 212.1 50.0 005.6 49.9 006 010.6 343.8 ---.- 026.2 021.8 01101100

Shutdown management

`SON`	Turn UPS On
`SOFF`	Turn UPS Off
`Sn`	Shutdown in `n` (`.2`→`.9`, `01`→`99`) minutes and then turn on when mains returns
`SnRm`	Shutdown in `n` (`.2`→`.9`, `01`→`99`) minutes and then turn on after `m` (`0001`..`9999`) minutes
`SnR0000`	Shutdown in `n` (`.2`→`.9`, `01`→`99`) minutes and stay off
`CS`	Cancel Shutdown

Battery test

Tests are doable in Line Mode/Converter Mode/ECO Mode

`T`	Invoke a quick battery self-test
`Tn`	Invoke a battery self-test lasting `n` (`.2`→`.9`, `01`→`99`) minutes
`TL`	Invoke a battery deep discharge test
`CT`	Cancel Battery Test

Outlet management

QSKn

Query UPS for status of outlet n (1..4)

Possible replies:

`(1`	Outlet `n` is ON
`(0`	Outlet `n` is OFF
`(NAK`	Outlet n is not switchable

SKONn

Start outlet n (1..4)

SKOFFn

Stop outlet n (1..4)

QSKTn

Query UPS for outlet n (1..4) delay time on battery mode

Possible replies:

(NNN

e.g.

(023

Where:

NNN

Backup time for outlet n before the UPS shutdown the load when on battery mode (minutes)

(NAK

Backup time for outlet n before the UPS shutdown the load when on battery mode not set in UPS

PSKxn

Set outlet x (1..4) delay time on battery mode to n (000…999) minutes

Capability options

QFLAG

Query UPS for capability flag

(EmmmmDnnnnn

e.g.

(EpbrashcDoegfl

Where:

`m..m`	Enabled options
`n..n`	Disabled options

PF

Set all capability options and their limits to safe default values (Doable only in Standby Mode)

PEX

Enable X option

PDX

Disable X option

Available options

`P`	Alarm at Bypass Mode (→ the alarm will beep only if Alarm Control, if available, is enabled)
`B`	Alarm at Battery Mode (→ the alarm will beep only if Alarm Control, if available, is enabled)
`R`	Auto reboot (→ the UPS will auto recover when AC is recovering)
`O`	Bypass when the UPS is Off (→ the bypass will work only if Bypass Forbidding is disabled)
`A`	Alarm Control (BEEP!)
`S`	Battery deep discharge protection
`V`	Converter Mode
`E`	ECO Mode (→ not influenced by Bypass Forbidding)
`G`	Green power function (Energy Saving → Auto Off when there is no load)
`D`	Battery Open Status Check (→ the UPS will check on startup if the battery is connected or not)
`H`	* unknown/unused *
`C`	Cold Start (→ the UPS can be turned on also if AC is not connected to the UPS)
`F`	Bypass not allowed (Bypass Forbidding → the UPS won’t transfer to bypass under any conditions)
`T`	* unknown/unused *
`J`	Programmable outlets control (→ on battery, the UPS will cut off outlets when set time arrives)
`K`	* unknown/unused *
`I`	* unknown/unused *
`L`	Site fault detection
`M`	* unknown/unused *
`N`	Advanced ECO Mode (→ not influenced by Bypass Forbidding)
`Q`	Constant Phase Angle Function (Output and input phase angles are not equal)
`W`	Limited runtime on battery mode
`Z`	* unknown/unused *

Voltage/Frequency limits management

for ECO Mode:

QHE

Query UPS for voltage range for ECO mode (Reset by PF)

(MMM NNN

e.g.

(242 218

Where:

`MMM`	Maximum voltage
`NNN`	Minimum voltage

HELn

Change minimum voltage for ECO Mode to n (3 digit integer, NNN) Volt

HEHn

Change maximum voltage for ECO Mode to n (3 digit integer, NNN) Volt

QFRE

Query UPS for frequency range for ECO mode (Reset by PF)

(MM.M NN.N

e.g.

(53.0 47.0

Where:

`MM.M`	Maximum frequency (Hz)
`NN.N`	Minimum frequency (Hz)

FRELn

Set minimum frequency for ECO Mode to n (3 digit decimal number, NN.N) Hz

FREHn

Set maximum frequency for ECO Mode to n (3 digit decimal number, NN.N) Hz

for Bypass Mode:

QBYV

Query UPS for voltage range for Bypass mode (Reset by PF)

(MMM NNN

e.g.

(264 170

Where:

`MMM`	Maximum voltage
`NNN`	Minimum voltage

PLVn

Change minimum voltage for Bypass Mode to n (3 digit integer, NNN) Volt

PHVn

Change maximum voltage for Bypass Mode to n (3 digit integer, NNN) Volt

QBYF

Query UPS for frequency range for Bypass mode (Reset by PF)

(MM.M NN.N

e.g.

(53.0 47.0

Where:

`MM.M`	Maximum frequency (Hz)
`NN.N`	Minimum frequency (Hz)

PSFn

Change minimum frequency for Bypass Mode to n (3 digit decimal number, NN.N) Hz

PGFn

Change maximum frequency for Bypass Mode to n (3 digit decimal number, NN.N) Hz

Battery management

Changing these options will change the UPS’s estimation on battery charge/runtime

RE0

Query UPS for battery low voltage

#NN

e.g.

#20

Where:

`NN`	Battery low voltage

W0En

Set battery low voltage to n (2 digit integer, NN) Volt

BATNn

Set number of batteries (that make a battery pack) to n (1..9)

BATGNn

Set number of battery packs in parallel to n (01..99)

Buzzer control

BZOFF

Disable alarm (BEEP!)

Accepted only if the UPS is buzzing

BZON

Enable alarm (BEEP!)

Phase angle management

QPD

Query UPS for input/output phase angle

(MMM NNN

e.g.

(000 120

Where:

`MMM`	Input phase angle
`NNN`	Output phase angle

PPDn

Set output phase angle to n (000, 120, 180 or 240)°

Multi-phase queries

Q3PV

Query UPS for multi-phase input voltage

(MMM.M NNN.N PPP.P QQQ.Q RRR.R SSS.S

e.g.

(104.4 090.9 102.3 240.0 260.2 190.0

Where:

`MMM.M`	Input Voltage L1
`NNN.N`	Input Voltage L2
`PPP.P`	Voltage L3
`QQQ.Q`	Input Voltage L1-L2
`RRR.R`	Input Voltage L2-L3 P09: Input Voltage L1-L3
`SSS.S`	Input Voltage L1-L3 P09: Input Voltage L2-L3

Q3OV

Query UPS for multi-phase output voltage

(MMM.M NNN.N PPP.P QQQ.Q RRR.R SSS.S

e.g.

(104.4 090.9 102.3 240.0 260.2 190.0

Where:

`MMM.M`	Output Voltage L1
`NNN.N`	Output Voltage L2
`PPP.P`	Output Voltage L3
`QQQ.Q`	Output Voltage L1-L2
`RRR.R`	Output Voltage L2-L3 P09: Output Voltage L1-L3
`SSS.S`	Output Voltage L1-L3 P09: Output Voltage L2-L3

Q3PC

Query UPS for multi-phase input current

(MMM NNN PPP

e.g.

(002 011 003

Where:

`MMM`	Input Current L1 (Ampère)
`NNN`	Input Current L2 (Ampère)
`PPP`	Input Current L3 (Ampère)

Q3OC

Query UPS for multi-phase output current

(MMM NNN PPP

e.g.

(004 003 012

Where:

`MMM`	Output Current L1 (Ampère)
`NNN`	Output Current L2 (Ampère)
`PPP`	Output Current L3 (Ampère)

Q3LD

Query UPS for multi-phase load level

(MMM NNN PPP

e.g.

(002 042 012

Where:

`MMM`	Output Load Level L1 (%)
`NNN`	Output Load Level L2 (%)
`PPP`	Output Load Level L3 (%)

Q3YV

Query UPS for multi-phase bypass voltage

(MMM.M NNN.N PPP.P QQQ.Q RRR.R SSS.S

Reply for P09 UPSes

(MMM.M NNN.N PPP.P

e.g.

(104.4 090.9 102.3 240.0 260.2 190.0

Where:

`MMM.M`	Output Bypass Voltage L1
`NNN.N`	Output Bypass Voltage L2
`PPP.P`	Output Bypass Voltage L3
`QQQ.Q`	Output Bypass Voltage L1-L2
`RRR.R`	Output Bypass Voltage L2-L3
`SSS.S`	Output Bypass Voltage L1-L3

Queries/commands limited to P31 UPSes

QBT

Query UPS for battery type

(NN

e.g.

(02

Where:

NN

Battery type:

`00`	Li
`01`	Flooded
`02`	AGM

PBTn

Set battery type to n (00 → Li, 01 → Flooded or 02 → AGM)

QGR

Query UPS for device grid working range

(NN

e.g.

(00

Where:

NN

Device grid working range:

`00`	Appliance
`01`	UPS

PGRn

Set device grid working range to n (00 → Appliance or 01 → UPS)

Old/Megatec commands not supported

`M`	Manufacturer, from Voltronic Power QS protocol
`Q`	Beeper Toggle
`C`	Cancel Shutdown

Unknown

QBDR

* unknown * - Query UPS for baud rate??

Warnings

#	Corresponding Warning	Type	Level
1	Battery disconnected	Battery event	2
2	Neutral not connected	Input event	2
3	Site fault	Input event	2
4	Phase sequence incorrect	Input event	2
5	Phase sequence incorrect in bypass	Bypass event	2
6	Input frequency unstable in bypass	Bypass event	2
7	Battery overcharged	Battery event	2
8	Low battery	Battery event	1
9	Overload alarm	Load event	2
10	Fan alarm	UPS internal event	2
11	EPO enabled	UPS internal event	2
12	Unable to turn on UPS	UPS internal event	2
13	Over temperature alarm	UPS internal event	2
14	Charger alarm	UPS internal event	2
15	Remote auto shutdown	UPS internal event	3
16	L1 input fuse not working	UPS internal event	2
17	L2 input fuse not working	UPS internal event	2
18	L3 input fuse not working	UPS internal event	2
19	Positive PFC abnormal in L1	UPS internal event	2
20	Negative PFC abnormal in L1	UPS internal event	2
21	Positive PFC abnormal in L2	UPS internal event	2
22	Negative PFC abnormal in L2	UPS internal event	2
23	Positive PFC abnormal in L3	UPS internal event	2
24	Negative PFC abnormal in L3	UPS internal event	2
25	Abnormal in CAN-bus communication	Parallel system event	2
26	Abnormal in synchronous signal circuit	Parallel system event	2
27	Abnormal in synchronous pulse signal circuit	Parallel system event	2
28	Abnormal in host signal circuit	Parallel system event	2
29	Male connector of parallel cable not connected well	Parallel system event	2
30	Female connector of parallel cable not connected well	Parallel system event	2
31	Parallel cable not connected well	Parallel system event	2
32	Battery connection not consistent in parallel systems	Parallel system event	2
33	AC connection not consistent in parallel systems	Parallel system event	2
34	Bypass connection not consistent in parallel systems	Parallel system event	2
35	UPS model types not consistent in parallel systems	Parallel system event	2
36	Capacity of UPSs not consistent in parallel systems	Parallel system event	2
37	Auto restart setting not consistent in parallel systems	Parallel system event	2
38	Battery cell over charge	Parallel system event	2
39	Battery protection setting not consistent in parallel systems	Parallel system event	2
40	Battery detection setting not consistent in parallel systems	Parallel system event	2
41	Bypass not allowed setting not consistent in parallel systems	Parallel system event	2
42	Converter setting not consistent in parallel systems	Parallel system event	2
43	High loss point for frequency in bypass mode not consistent in parallel systems	Parallel system event	2
44	Low loss point for frequency in bypass mode not consistent in parallel systems	Parallel system event	2
45	High loss point for voltage in bypass mode not consistent in parallel systems	Parallel system event	2
46	Low loss point for voltage in bypass mode not consistent in parallel systems	Parallel system event	2
47	High loss point for frequency in AC mode not consistent in parallel systems	Parallel system event	2
48	Low loss point for frequency in AC mode not consistent in parallel systems	Parallel system event	2
49	High loss point for voltage in AC mode not consistent in parallel systems	Parallel system event	2
50	Low loss point for voltage in AC mode not consistent in parallel systems	Parallel system event	2
51	Warning for locking in bypass mode after 3 consecutive overloads within 30 min	Parallel system event	2
52	Warning for three-phase AC input current unbalance	Parallel system event	2
53	Warning for a three-phase input current unbalance detected in battery mode	Parallel system event	2
54	Warning for Inverter inter-current unbalance	Parallel system event	2
55	Programmable outlets cut off pre-alarm	UPS internal event	1
56	Warning for Battery replace	UPS internal event	1
57	Abnormal warning on input phase angle	UPS internal event	2
58	Warning!! Cover of maintain switch is open	UPS internal event	2
62	EEPROM operation error	UPS internal event	2

Fault handler

#	Corresponding Fault	Type	Level
`01`	Bus voltage not within default setting	UPS internal event	1
`02`	Bus voltage over maximum value	UPS internal event	1
`03`	Bus voltage below minimum value	UPS internal event	1
`04`	Bus voltage differences out of acceptable range	UPS internal event	1
`05`	Bus voltage of slope rate drops too fast	UPS internal event	1
`06`	Over current in PFC input inductor	UPS internal event	1
`11`	Inverter voltage not within default setting	UPS internal event	1
`12`	Inverter voltage over maximum value	UPS internal event	1
`13`	Inverter voltage below minimum value	UPS internal event	1
`14`	Inverter short-circuited	UPS internal event	1
`15`	L2 phase inverter short-circuited	UPS internal event	1
`16`	L3 phase inverter short-circuited	UPS internal event	1
`17`	L1L2 inverter short-circuited	UPS internal event	1
`18`	L2L3 inverter short-circuited	UPS internal event	1
`19`	L3L1 inverter short-circuited	UPS internal event	1
`1A`	L1 inverter negative power out of acceptable range	UPS internal event	1
`1B`	L2 inverter negative power out of acceptable range	UPS internal event	1
`1C`	L3 inverter negative power out of acceptable range	UPS internal event	1
`21`	Battery SCR short-circuited	UPS internal event	1
`22`	Line SCR short-circuited	UPS internal event	1
`23`	Inverter relay open fault	UPS internal event	1
`24`	Inverter relay short-circuited	UPS internal event	1
`25`	Input and output wires oppositely connected	UPS internal event	1
`26`	Battery oppositely connected	Battery event	2
`27`	Battery voltage is too high	Battery event	2
`28`	Battery voltage too low	Battery event	2
`29`	Failure for battery fuse being open-circuited	Battery event	1
`31`	CAN-bus communication fault	Parallel system event	2
`32`	Host signal circuit fault	Parallel system event	2
`33`	Synchronous signal circuit fault	Parallel system event	2
`34`	Synchronous pulse signal circuit fault	Parallel system event	2
`35`	Parallel cable disconnected	Parallel system event	2
`36`	Load unbalanced	Load event	2
`41`	Over temperature fault	UPS internal event	1
`42`	Communication failure between CPUs in control board	UPS internal event	1
`43`	Overload fault	Load event	1
`44`	Fan failure	UPS internal event	1
`45`	Charger failure	UPS internal event	1
`46`	Model fault	UPS internal event	1
`47`	MCU communication fault	UPS internal event	1

P31 UPSes

#	Corresponding Fault	Type	Level
`01`	Fan failure	UPS internal event	1
`02`	Over temperature fault	UPS internal event	1
`03`	Battery voltage is too high	Battery event	1
`04`	Battery voltage too low	Battery event	1
`05`	Inverter relay short-circuited	UPS internal event	1
`06`	Inverter voltage over maximum value	UPS internal event	1
`07`	Overload fault	Load event	1
`08`	Bus voltage exceeds its upper limit	UPS internal event	1
`09`	Bus soft start fail	UPS internal event	1
`10`	* unknown *	UPS internal event	1
`51`	Over current fault	UPS internal event	1
`52`	Bus voltage below its under limit	UPS internal event	1
`53`	Inverter soft start fail	UPS internal event	1
`54`	Self test fail	UPS internal event	1
`55`	Output DC voltage exceeds its upper limit	UPS internal event	1
`56`	Battery open fault	Battery event	1
`57`	Current sensor fault	UPS internal event	1
`58`	Battery short	Battery event	1
`59`	Inverter voltage below its lower limit	UPS internal event	1

Operational modes

Power On Mode: The UPS is going On.
Shutdown Mode: The UPS is shutting down.
Standby Mode: The UPS has powered off output power, but the battery can still be charged.
Line Mode: When the input voltage/frequency are within acceptable range, the UPS will provide pure and stable AC power to output. The UPS will also charge the battery under this mode.
Battery Mode: When the input voltage is beyond the acceptable range or as a consequence of a power failure, UPS will backup power from battery.
ECO Mode: (Efficiency Corrective Optimizer) When the input voltage/frequency are within acceptable range, the UPS will bypass voltage to output for energy saving. PFC and INVERTER are still active at this mode.
Advanced ECO Mode: (Advanced Efficiency Corrective Optimizer) When the input voltage/frequency are within acceptable range, the UPS will bypass voltage to output for energy saving. PFC and INVERTER are off at this mode.
Bypass Mode: When input voltage/frequency are within acceptable range but UPS is overload, the UPS will enter Bypass Mode or Bypass Mode can be set by front panel or you can set the UPS to enter Bypass Mode when the UPS is off: the UPS will bypass voltage to output.
Converter Mode: (Frequency Converter Mode) When input frequency is within 40 Hz to 70 Hz, the UPS can be set at a constant output frequency, 50 Hz or 60 Hz. The UPS will still charge battery under this mode.
Battery Test Mode: The UPS is performing a battery test.
Fault Mode: The UPS is in Fault Mode when a fault is found and no output power is supplied by the UPS.
AVR Mode: The UPS bypasses voltage to output regulating input voltage to the appropriate level.

Revision History

Rev.	Date	Description	Author
1.0	04/2013	Initial release	Daniele Pezzini
1.1	10/2013	Add some unused capability options (`M`, `Z`)	Daniele Pezzini
1.2	01/2014	Fix typos, add description of not supported `M` command	Daniele Pezzini
1.3	03/2015	Add P13 protocol	Daniele Pezzini