Non-qualified electricians are forbidden to open the case due to hazard
of electrical shock.
Consulting the dealer is required before using for below equipment. Its
application, configuration, management and maintenance must be
specially considered and designed.
Medical equipment which is directly related to patients’life
Elevator and other equipment which may endanger personal
safety
WARNING
The UPS must be properly earthed / grounded and due to a high leakage
current, the earthing / grounding conductor must be connected first.
Symbol
Significations
Symbol
Significations
Caution
Protective earth
Danger! High
Voltage!
Disable/mute
audible alarm
Turn on
Bypass
Turn off
Battery inspection
Standby or
Shutdown
Repeat
AC
Battery
DC
1Safety Information
SERIESTS33-ON
Safety and General Information
Read all safety information and operating instructions carefully before attempting to install, operate, service or maintain the UPS.
The UPS contains internal batteries and may present a shock hazard even when disconnected from the branch circuit (mains).
The protective earth conductor for the UPS carries the leakage current from the load devices (computer equipment). An
insulated ground conductor is to be installed as part of the branch circuit that supplies the UPS. The conductor must have the
same size and insulation material as the grounded and ungrounded branch circuit supply conductors.
Do not use liquid extinguisher if there is a fire, a dry powder extinguisher is recommended.
Disconnect all connection wiring before maintenance or cleaning to avoid the risk of electric shock.
Do not dispose of the batteries with fire. The batteries may explode.
Do not open or mutilate batteries. Released electrolyte inside is harmful to the skin and eyes, and maybe toxic.
Do not connect the positive pole and negative pole directly, otherwise it will cause electric shocks or will be on fire.
It is not suitable to connect some electric equipments such as hair drier and heating appliance.
H means Long time model w/o inbuilt battery; S means Standard model with inbuilt battery.Derate capacity to 90%
when the output voltage is adjusted to 360Vac.
when connect the loads with the UPS, turn off all the loads first, then
connect power cables and turn on the loads one by one.
UPS must be connected to the distribution board with overcurrent protective
breaker.
All power cables should be connected to the protective earthing.
No matter whether connects the input power cables or not, the UPS output
may present electricity. To make the UPS have no output, turning off the
UPS first is required, and then disconnects the mains power supply.
To connect inductive loads such as motor and laser printer ect., due to their
excessive starting power, UPS capacity should be calculated by starting
power which normally is twice as much as its rated power.
If connect to a generator, follow this procedure:
Turn on the generator, wait until it works normally and connect its output to
the UPS input terminal (Verify that UPS has no-load at this moment),then
start up the UPS and connect the loads one by one (it is suggested that
users choose the generator which is 1.2 times bigger than UPS capacity). If
the generator has no enough endurance ability to shock (it shows switching
to battery mode due to utility high voltage), it can be switched to bypass
mode to take loads and then start UPS again to go to utility mode.
For standard model UPS, it is suggested that users charge batteries more
than 8hs before using. Once mains input power is connected, the UPS can
automatically charge the battery. Even not charge, it can be used at once,
but its backup time will be less than standard value.
After finishing installation, verify that the installation is correct.
If install the protective leakage current switch, it should be installed on the
UPS output terminal.
3 Installation
3.1 Unpacking inspection
Open the UPS package and inspect the contents upon receipt. The accessories attached to the UPS contain a
user manual, RS232 & USB communication cable, CD-ROM.
Check if the unit is damaged during transport. Do not power on and notify the carrier and dealer if find
damaged or parts missing.
Verify this unit is the model you want to buy. Check the model name showed both on the front panel and rear
panel.
Note:
Keep the packaging box and packaging materials for reuse. The equipment is heavy. Always handle it with care.
3.2 Single System Installation
3.2.1 Installation environment and location
Install the UPS system in a temperature controlled environment free of conductive contaminants and humidity.
Install the UPS system on a non-flammable, level and solid surface (e.g. concrete) that can support the weight of the
system.
The UPS system can not be placed up against the wall. Keep adequate space for proper ventilation of air inlet in the
bottom of front panel, air outlet of fans on the rear cover plate and air inlet of enclosure sides.
The ambient temperature of the UPS should be 0 °C to 40 °C.
There may be condensing If unpacking in low temperature, the UPS must be waited until inside and outside of the UPS are
completely dry for installation, otherwise there is hazard of electric shock.
Place the UPS close to the mains input power distribution so as to cut off mains input switch and power supply in
The UPS system uses terminal block for input and output connections. The requirements for the cable current
are as follows:
Remark: when the main load is a kind of linear load, the N line cable can be selected the same cross
sectional area as the mains live line cable; when the main load is a kind of non-linear load, the Null current is 1.5-
1.7 times as big as the Live current, and it needs to be selected according to the recommended N line cable current
in the above table. If it is multiconductor cable, it should be selected according to the cross sectional area of the N
line cable.
Terminal block
Note:Ensure that the input / output cables must be connected firmly to the input / output terminals, bad contacts
are not allowable. It is suggested that the earth wire is close to the input / output wire size.
3.2.3 Connect external battery (Long time model UPS)
The default configuration of Long time model UPS use 16pcs batteries, standard model UPS use 20pcs as default. If it was
customized to be 14/16/18/20pcs before factory delivery, connect proper batteries according to the customized battery
quantity. If need to change battery configuration, contact your local dealer for modification.
Strictly follow these steps:
Battery switch is OFF, connect batteries in series and ensure proper battery voltage.
Battery cables must be connected to the battery terminal first (Connecting to the UPS terminal first has hazard of
electric shock), red wire is connected to BAT+, black wire to BAT-.
Use proper battery cables to connect the UPS and batteries. The DC breaker between UPS and batteries is required.
Not to connect UPS to any loads first, close the battery breaker and provide mains power to the UPS (close the UPS input
Parallel function is optional. Parallel kits include parallel card and parallel cables. The maximum parallel number is
6 units. Parallel UPS units must separately equip the battery group。
3.3.1 Parallel installation requirements
The parallel cables must be run by the electrician.
The input / output wiring of each UPS is same as single UPS’s wiring.
Each UPS mains and bypass input cables connected to mains and bypass input patchboard.
Each UPS output cable is connected to the output patchboard, and connected wiring to the load from the output
patchboard.
Each UPS requires separate battery group.
Refer to the parallel wiring diagram. The switch size in the diagram is referred to the maximum current of terminal block to
match.
The output cable length requires: the cable length from each single UPS output to parallel UPS units output is almost same
and more than 2 m at least. When the distance between the load and each parallel UPS is less than 20 m, each cable
length difference less than 20% is required. When the distance between the load and each parallel UPS is more than 20 m,
each cable length difference less than 10% is required.
3.3.2 Parallel installation procedure
Install the parallel cables:when two UPS are paralleled, in order to ensure the reliability for parallel UPS units, there is
only one way to connect the parallel cables, it is to make the parallel cable connected in loop line, follow the method of
below drawing to connect the female port and male port, that is connecting two UPS with two parallel cables by parallel
cards. For three or more parallel UPS units, the quantity of parallel cables needed equals to the UPS quantities. It just
needs to connect each UPS in sequence with the parallel cables by parallel cards.
Note: For three or more parallel UPS units, removing the jumper cap of CN3 on the parallel card of the more unit
than the third (including the third unit) is required, only keep the jumper cap of CN3 on the parallel card of the two
UPS.
Parallel card of long time mode UPS Parallel card of standard mode UPS
Short circuit cap of parallel card Parallel port board
Connect all parallel UPS output cables to the output patchboard, and connect wiring to the load from the output patchboard.
Connect all parallel UPS input cables to the input patchboard.
For standard model UPS, each UPS has inbuilt battery group; for long time model UPS, it needs to equip separated
external battery group.
Verify all connection after parallel installation is completed. Operate the parallel UPS after confirming correct.
In the condition of each single UPS running, set the physical address (ID) of each UPS, and ensure that each ID is
different.
In the condition of each single UPS running, set the output voltage (OPU) of each UPS, and ensure that each OPU is
same.
Verify if the parallel cables of all UPS are connected firmly, perform startup and finish parallel installation.