LEGRAND NUMERIC HP i 33 40 kVA Series User manual

www.numericups.com
USER MANUAL
HP i 33 40 kVA Series UPS
NEW ENERGY
TO POWER

CONTENTS
3.1.5 Safety warning label setting 19
3.1.6 Measure with electricity 19
3.2 Operation and maintenance requirements 20
3.3 Environment requirements 22
4. Installation 23
4.1 Installation procedure 23
4.2 Installation preparation 24
4.2.1 Installation tools 24
4.2.2 Installation environment 25
4.2.3 Installation space 26
4.2.4 Selection for input and output wires 26
4.2.5 Surge protection device 28
4.2.6 Reverse feedback protection (optional) 28
4.3 Transportation and unpacking 29
4.3.1 Transportation 29
4.3.2 Unpacking 30
4.4 Mechanical installation 33
CONTENTS
1. Preface 1
2. Product overview 3
2.1 Product introduction 3
2.1.1 Model meaning 3
2.1.2 Product features 3
2.2 Working principle 5
2.2.1 Working principle diagram 5
2.2.2 Working mode 5
2.3 Appearance and structure 7
2.3.1 Appearance 7
2.3.2 Structure layout (open door) 9
2.3.3 Alarm function 12
3. Safety instructions 15
3.1 Safety announcements 15
3.1.1 Safety instructions 15
3.1.2 Usage announcements for battery 17
3.1.3 Anti-static protection 18
3.1.4 Grounding requirements 18

CONTENTS
3.1.5 Safety warning label setting 19
3.1.6 Measure with electricity 19
3.2 Operation and maintenance requirements 20
3.3 Environment requirements 22
4. Installation 23
4.1 Installation procedure 23
4.2 Installation preparation 24
4.2.1 Installation tools 24
4.2.2 Installation environment 25
4.2.3 Installation space 26
4.2.4 Selection for input and output wires 26
4.2.5 Surge protection device 28
4.2.6 Reverse feedback protection (optional) 28
4.3 Transportation and unpacking 29
4.3.1 Transportation 29
4.3.2 Unpacking 30
4.4 Mechanical installation 33
CONTENTS
1. Preface 1
2. Product overview 3
2.1 Product introduction 3
2.1.1 Model meaning 3
2.1.2 Product features 3
2.2 Working principle 5
2.2.1 Working principle diagram 5
2.2.2 Working mode 5
2.3 Appearance and structure 7
2.3.1 Appearance 7
2.3.2 Structure layout (open door) 9
2.3.3 Alarm function 12
3. Safety instructions 15
3.1 Safety announcements 15
3.1.1 Safety instructions 15
3.1.2 Usage announcements for battery 17
3.1.3 Anti-static protection 18
3.1.4 Grounding requirements 18

CONTENTS
5.5.1 Event log 51
5.5.2 User log 52
5.5.3 Device information 52
5.6 Setting management 54
5.6.1 System management 55
5.6.2 Battery management 59
5.6.3 Battery test 62
5.6.4 Function configuration 62
5.6.5 HMI setting 63
5.6.6 Password setting 64
5.7 Buzzer control 64
5.8 On/off 64
6. Uses and operations 66
6.1 Usage announcements 66
6.2 Operating procedure 66
6.3 UPS start and shut down 66
6.3.1 Check before start up 66
CONTENTS
4.4.1 UPS installation 33
4.4.2 Wiring 36
4.4.3 Install battery cabinet 38
4.4.4 Battery cabinet installation procedure 39
4.5 System check and test 40
4.5.1 Check electrical connection 40
4.5.2 UPS test 40
4.5.3 Connect load 40
5. Touch screen operation and setting 41
5.1 Menu hierarchy 41
5.2 Main page 42
5.3 System work status display 43
5.4 Monitor function 48
5.4.1 Bypass input information 48
5.4.2 Mains information 48
5.4.3 Battery information 49
5.4.4 System output information page 50
5.5 Information query 51

CONTENTS
5.5.1 Event log 51
5.5.2 User log 52
5.5.3 Device information 52
5.6 Setting management 54
5.6.1 System management 55
5.6.2 Battery management 59
5.6.3 Battery test 62
5.6.4 Function configuration 62
5.6.5 HMI setting 63
5.6.6 Password setting 64
5.7 Buzzer control 64
5.8 On/off 64
6. Uses and operations 66
6.1 Usage announcements 66
6.2 Operating procedure 66
6.3 UPS start and shut down 66
6.3.1 Check before start up 66
CONTENTS
4.4.1 UPS installation 33
4.4.2 Wiring 36
4.4.3 Install battery cabinet 38
4.4.4 Battery cabinet installation procedure 39
4.5 System check and test 40
4.5.1 Check electrical connection 40
4.5.2 UPS test 40
4.5.3 Connect load 40
5. Touch screen operation and setting 41
5.1 Menu hierarchy 41
5.2 Main page 42
5.3 System work status display 43
5.4 Monitor function 48
5.4.1 Bypass input information 48
5.4.2 Mains information 48
5.4.3 Battery information 49
5.4.4 System output information page 50
5.5 Information query 51

CONTENTS
7.4 Trouble shooting 78
7.4.1 Common abnormal phenomena diagnosis 78
7.4.2 Emergency dispose for system fault 82
8. Package, transportation and storage 83
8.1 Package 83
8.2 Transportation 83
8.3 Storage 83
9. Acronyms and abbreviations 84
CONTENTS
6.3.2 Start up 67
6.3.3 UPS shut down 69
6.3.4 Switch to bypass mode manually 69
6.3.5 Switch to maintenance bypass mode from inverter output 70
6.3.6 Switch to inverter output from maintenance bypass 70
6.3.7 Emergency Power Off (EPO) 71
6.3.8 Emergency Power Off recovery 72
6.4 Parallel system start up and shut down 72
6.4.1 Start parallel system 72
6.4.2 Shut down parallel system 74
6.4.3 Emergency Power Off (EPO) 75
7. Maintenance and trouble shooting 76
7.1 Maintenance guide 76
7.1.1 Safety precautions 76
7.1.2 Preventive maintenance 76
7.2 Battery maintenance 76
7.3 Announcements for battery replacement 77

CONTENTS
7.4 Trouble shooting 78
7.4.1 Common abnormal phenomena diagnosis 78
7.4.2 Emergency dispose for system fault 82
8. Package, transportation and storage 83
8.1 Package 83
8.2 Transportation 83
8.3 Storage 83
9. Acronyms and abbreviations 84
CONTENTS
6.3.2 Start up 67
6.3.3 UPS shut down 69
6.3.4 Switch to bypass mode manually 69
6.3.5 Switch to maintenance bypass mode from inverter output 70
6.3.6 Switch to inverter output from maintenance bypass 70
6.3.7 Emergency Power Off (EPO) 71
6.3.8 Emergency Power Off recovery 72
6.4 Parallel system start up and shut down 72
6.4.1 Start parallel system 72
6.4.2 Shut down parallel system 74
6.4.3 Emergency Power Off (EPO) 75
7. Maintenance and trouble shooting 76
7.1 Maintenance guide 76
7.1.1 Safety precautions 76
7.1.2 Preventive maintenance 76
7.2 Battery maintenance 76
7.3 Announcements for battery replacement 77

1
1 PREFACE
Congratulations!
We are delighted to welcome you to our family
of customers. Thank you for choosing Numeric
as your reliable power solution partner, you now
have access to our widest network of 250+ service
centers in the country. Since 1984, Numeric has
been enabling its clients to optimize their business
with top-notch power solutions that promise
seamless and clean power with controlled
environmental footprints. We look forward to
your continued patronage in the years to come.
This manual contains detailed instructions on
how to use, install and operate this product.
High-risk hazard that could result in serious injury or death.
Symbol conventions
The manual gives the meaning of the safety symbols for the users to comply with precautionary measures
during installation, operation and maintenance.
Symbol
DANGER
CAUTION
WARNING
Description
Medium or low-risk hazard that could result in moderate
or minor injury.
Provides additional information to emphasize or
supplement important points in the main text.
Anti-static prompt.
Danger of electric shock.
TIP Problem-solving or time-saving tip available.
NOTE
Potential hazard-situation that could result in equipment
damage, performance deterioration, data-loss or
unanticipated results.
Note:
The figures in this manual are for reference. Please see the actual product for details.
Disclaimers:
• The contents of this manual are bound to change without prior notice.
• We have exercised reasonable care to give you an error-free manual. Numeric disclaims liability
for any inaccuracies or omissions that may have occurred. If you find information in this manual that
is incorrect, misleading or incomplete, we would appreciate your comments and suggestions.
• Before you begin the installation of the product, please read this manual thoroughly.
The warranty of this product is null and void, if the product is abused/misused.

2
1 PREFACE
Congratulations!
We are delighted to welcome you to our family
of customers. Thank you for choosing Numeric
as your reliable power solution partner, you now
have access to our widest network of 250+ service
centers in the country. Since 1984, Numeric has
been enabling its clients to optimize their business
with top-notch power solutions that promise
seamless and clean power with controlled
environmental footprints. We look forward to
your continued patronage in the years to come.
This manual contains detailed instructions on
how to use, install and operate this product.
High-risk hazard that could result in serious injury or death.
Symbol conventions
The manual gives the meaning of the safety symbols for the users to comply with precautionary measures
during installation, operation and maintenance.
Symbol
DANGER
CAUTION
WARNING
Description
Medium or low-risk hazard that could result in moderate
or minor injury.
Provides additional information to emphasize or
supplement important points in the main text.
Anti-static prompt.
Danger of electric shock.
TIP Problem-solving or time-saving tip available.
NOTE
Potential hazard-situation that could result in equipment
damage, performance deterioration, data-loss or
unanticipated results.
Note:
The figures in this manual are for reference. Please see the actual product for details.
Disclaimers:
• The contents of this manual are bound to change without prior notice.
• We have exercised reasonable care to give you an error-free manual. Numeric disclaims liability
for any inaccuracies or omissions that may have occurred. If you find information in this manual that
is incorrect, misleading or incomplete, we would appreciate your comments and suggestions.
• Before you begin the installation of the product, please read this manual thoroughly.
The warranty of this product is null and void, if the product is abused/misused.

3
Energy conservation and high efficiency
Adopts advanced PFC control technology. The input power factor is greater than 0.99, which greatly
improves the use ratio of electric energy and reduces the load of power grid, thus saving the cost of
power distribution. The size of the UPS is small, and the weight is light, calorific value is small, which
enhances the use ratio of environment and decreases the investment cost.
Smart fan speed control
The fan speed is adjusted automatically in accordance with the load status, which prolongs the life of the
fan and reduces the noise.
ECO energy conservation mode design
The UPS is designed with ECO energy conservation mode. When the UPS is operating in ECO mode and
the user power grid is good, the bypass prior to output and efficiency can be at 99%. When the bypass
voltage or frequency is out of normal range and cannot satisfy the user's power supply requirement, it
will switch to inverter output which guarantees the reliability of power supply and also saves energy.
Manual maintenance bypass design
The manual maintenance bypass channel ensures that UPS supply power to load during maintenance which
greatly improves the system operation reliability of power supply and also saves energy.
Reliable EMC performance
It has passed the professional test on EMC by the authority institution, including conducting disturbance,
radioactive disturbance, conducting anti-disturbance, radioactive anti-disturbance, power falling, mass
impulse, static discharging, surge, etc. The excellent EMC characteristics can completely filter each power
grid interference and also, decrease and eliminate the interference of UPS itself effectively.
Touch screen display
Touch screen display makes operating simple and convenient, to manage and maintain the UPS on
everyday basis. It displays the running parameters, running status of the UPS, each power unit, record
history and give alarm information. It can store a maximum of 9000 pieces of information.
HP i 33 40 kVA UPS is a high-frequency double conversion UPS. This high performance sine-wave UPS is
specially designed for the network computer room, precision instruments, etc. across verticals like financial
institutions, communication companies, insurance, transportation, tax, army, security, energy, education,
government, enterprise, etc.
2.1.1 Model meaning
/Bmeans that the UPS can be used in parallel system, if without /B, it means that the UPS can be used in single
unit only.
2.1.2 Product features
Three-level inversion technology
Adopts three-level inversion technology, which makes the quality of output voltage wave better and
increases the efficiency of the UPS.
Completely digitalized DSP control
Adopts digitalized DSP to control the inverting, phase synchronization, output current-sharing, logic of
the power unit with high precision, high speed and perfect whole system performance.
2 PRODUCT OVERVIEW
This section introduces the scope, product feature, work principle, modes, appearance, layout, alarm list and
more of the UPS.
2.1 Product introduction

4
Energy conservation and high efficiency
Adopts advanced PFC control technology. The input power factor is greater than 0.99, which greatly
improves the use ratio of electric energy and reduces the load of power grid, thus saving the cost of
power distribution. The size of the UPS is small, and the weight is light, calorific value is small, which
enhances the use ratio of environment and decreases the investment cost.
Smart fan speed control
The fan speed is adjusted automatically in accordance with the load status, which prolongs the life of the
fan and reduces the noise.
ECO energy conservation mode design
The UPS is designed with ECO energy conservation mode. When the UPS is operating in ECO mode and
the user power grid is good, the bypass prior to output and efficiency can be at 99%. When the bypass
voltage or frequency is out of normal range and cannot satisfy the user's power supply requirement, it
will switch to inverter output which guarantees the reliability of power supply and also saves energy.
Manual maintenance bypass design
The manual maintenance bypass channel ensures that UPS supply power to load during maintenance which
greatly improves the system operation reliability of power supply and also saves energy.
Reliable EMC performance
It has passed the professional test on EMC by the authority institution, including conducting disturbance,
radioactive disturbance, conducting anti-disturbance, radioactive anti-disturbance, power falling, mass
impulse, static discharging, surge, etc. The excellent EMC characteristics can completely filter each power
grid interference and also, decrease and eliminate the interference of UPS itself effectively.
Touch screen display
Touch screen display makes operating simple and convenient, to manage and maintain the UPS on
everyday basis. It displays the running parameters, running status of the UPS, each power unit, record
history and give alarm information. It can store a maximum of 9000 pieces of information.
HP i 33 40 kVA UPS is a high-frequency double conversion UPS. This high performance sine-wave UPS is
specially designed for the network computer room, precision instruments, etc. across verticals like financial
institutions, communication companies, insurance, transportation, tax, army, security, energy, education,
government, enterprise, etc.
2.1.1 Model meaning
/Bmeans that the UPS can be used in parallel system, if without /B, it means that the UPS can be used in single
unit only.
2.1.2 Product features
Three-level inversion technology
Adopts three-level inversion technology, which makes the quality of output voltage wave better and
increases the efficiency of the UPS.
Completely digitalized DSP control
Adopts digitalized DSP to control the inverting, phase synchronization, output current-sharing, logic of
the power unit with high precision, high speed and perfect whole system performance.
2 PRODUCT OVERVIEW
This section introduces the scope, product feature, work principle, modes, appearance, layout, alarm list and
more of the UPS.
2.1 Product introduction

5
2.2 Working principle
2.2.1 Working principle diagram
Figure 2-1. Working principle diagram
2.2.2 Working mode
There are 4 working modes of the UPS: normal mains mode, battery mode, bypass mode and
maintenance bypass mode.
Normal mains mode
When the mains is in normal mode, AC power is transformed to DC power by PFC, and supplies power
to the inverter. While rectifying the AC power into DC power, the rectifier eliminates the abnormal noise
wave, noise and unstable frequency, making the inverter provide stable and clean power for load. The
specific work process is as follows:
• When mains is normal, the rectifier, inside the power unit, rectifies the mains into anode and
cathode DC voltage and stores energy in DC electrolysis for the inverter to use. The inverter absorbs
energy from DC electrolysis and inverts to a stable output at 220 Vac voltage. When the system
control card detects the inverter is normal, it will supply the inverting voltage to load.
Battery mode
When mains is abnormal, system will switch to battery input, the Boost circuit promotes the battery
voltage to a certain value and then supplies the DC power to the inverter, that makes the AC output
without interruption and protects the load. The specific work process is as follows:
• When mains is abnormal at any time, the rectifier will switch to battery input immediately to
maintain the voltage of DC electrolysis, which guarante the inverter without power down. Before the
battery discharges completely, if the mains recovers, the rectifier will switch to mains input and
charge battery at the same time. During the switch between grid power supply and battery power
supply, the inverter output cannot power down.
• In battery power supply mode, if mains does not recover normally during the time, and the battery
energy is running out, the UPS will send sound and light alarm, stop working at maximum
discharge point and emit long beeps. At that time, the load will power down.
Bypass mode
When system is abnormal (such as over-temperature, short-circuit, output voltage abnormal or
overload) and exceed the bearable range, the inverter will shut down automatically to avoid damage.
If mains is still normal at this time, it will turn to bypass to supply power for load. The specific work
process is as follows:
• If the inverter circuit fault or inverter overload exceed the bearable range, the UPS will turn to
bypass to output. During bypass power supply, if fault or overload is removed, the UPS will start
inverter and begin to supply power for load. When the load is serious and exceeds the bypass
bearable range, the UPS will close the bypass output, and will cause user load power down. When
load fault or short circuit, the UPS will switch to bypass to supply power from inverter. If the short
circuit is serious, the UPS input breaker and bypass breaker may trip out. After the short circuit
fault, UPS will try to restart. If the short circuit is removed, the UPS will switch to inverter; if not
removed, the UPS will try to restart for 5 times. Five minutes later, the UPS will turn to fault
protection. At this time, power off or press the touch screen to shut down the UPS, and restart the
UPS to work normally.
Bypass Input
Maintenance bypass
Bypass unit
Power unit
Mains Input
Battery Input
Output
By
p
ass un
i
t
Po
w
e
r
u
n
i
t
AC DC AC
DC
DC
DC

6
2.2 Working principle
2.2.1 Working principle diagram
Figure 2-1. Working principle diagram
2.2.2 Working mode
There are 4 working modes of the UPS: normal mains mode, battery mode, bypass mode and
maintenance bypass mode.
Normal mains mode
When the mains is in normal mode, AC power is transformed to DC power by PFC, and supplies power
to the inverter. While rectifying the AC power into DC power, the rectifier eliminates the abnormal noise
wave, noise and unstable frequency, making the inverter provide stable and clean power for load. The
specific work process is as follows:
• When mains is normal, the rectifier, inside the power unit, rectifies the mains into anode and
cathode DC voltage and stores energy in DC electrolysis for the inverter to use. The inverter absorbs
energy from DC electrolysis and inverts to a stable output at 220 Vac voltage. When the system
control card detects the inverter is normal, it will supply the inverting voltage to load.
Battery mode
When mains is abnormal, system will switch to battery input, the Boost circuit promotes the battery
voltage to a certain value and then supplies the DC power to the inverter, that makes the AC output
without interruption and protects the load. The specific work process is as follows:
• When mains is abnormal at any time, the rectifier will switch to battery input immediately to
maintain the voltage of DC electrolysis, which guarante the inverter without power down. Before the
battery discharges completely, if the mains recovers, the rectifier will switch to mains input and
charge battery at the same time. During the switch between grid power supply and battery power
supply, the inverter output cannot power down.
• In battery power supply mode, if mains does not recover normally during the time, and the battery
energy is running out, the UPS will send sound and light alarm, stop working at maximum
discharge point and emit long beeps. At that time, the load will power down.
Bypass mode
When system is abnormal (such as over-temperature, short-circuit, output voltage abnormal or
overload) and exceed the bearable range, the inverter will shut down automatically to avoid damage.
If mains is still normal at this time, it will turn to bypass to supply power for load. The specific work
process is as follows:
• If the inverter circuit fault or inverter overload exceed the bearable range, the UPS will turn to
bypass to output. During bypass power supply, if fault or overload is removed, the UPS will start
inverter and begin to supply power for load. When the load is serious and exceeds the bypass
bearable range, the UPS will close the bypass output, and will cause user load power down. When
load fault or short circuit, the UPS will switch to bypass to supply power from inverter. If the short
circuit is serious, the UPS input breaker and bypass breaker may trip out. After the short circuit
fault, UPS will try to restart. If the short circuit is removed, the UPS will switch to inverter; if not
removed, the UPS will try to restart for 5 times. Five minutes later, the UPS will turn to fault
protection. At this time, power off or press the touch screen to shut down the UPS, and restart the
UPS to work normally.
Bypass Input
Maintenance bypass
Bypass unit
Power unit
Mains Input
Battery Input
Output
By
p
ass un
i
t
Po
w
e
r
u
n
i
t
AC DC AC
DC
DC
DC

7
Maintenance bypass mode
When the UPS needs to be maintained and the power supply for load cannot be interrupted, user can shut
down the inverter and make the UPS work in bypass status. Switch on the maintenance bypassbreaker and
switch off the mains pint breaker and bypass power supply breaker. while transforming the manual
maintenance bypass, AC power is supplied for load by maintenance bypass breaker. At this time, the inner
UPS has no electricity, personnel can perform the maintenance safely.
2.3 Appearance and structure
2.3.1 Appearance
The appearance of this series UPS is as shown in Figure 2-2.
Operating panel
• HP i 33 40 kVA UPS
Figure 2-3. Operating panel
Figure 2-2. Appearance of 40 kVA(/B) UPS
Shows the running parameters (such as voltage, current,
load, etc.) and status
Name Illustration
On (green): Rectifier works normally.
On (red): Rectifier abnormal.
On (green): Inverter works normally.
On (red): Inverter abnormal.
Table 2-1. Illustration for the operating panel
No.
Touch screen
Touch screen
Touch screen
1.
2.
3.
On (green): Bypass output.
On (red): Bypass abnormal.
On (red): Battery low-voltage.
On (red): Output overload.
BYP. indicator
BATT. LOW indicator
OVERLOAD indicator
4.
5.
6.
Press the two buttons for 3 sec., the system will power on.
Press the two buttons for 3 sec., the system will power off.
Press the button, the system will power outage immediately.
ON
combination button
OFF
combination button
EPO emergency
power off button
7.
8.
9.
1
87
2 3 4 5 6 9
EPO
ON ON ON ONOFF OFF EPO

8
Maintenance bypass mode
When the UPS needs to be maintained and the power supply for load cannot be interrupted, user can shut
down the inverter and make the UPS work in bypass status. Switch on the maintenance bypassbreaker and
switch off the mains pint breaker and bypass power supply breaker. while transforming the manual
maintenance bypass, AC power is supplied for load by maintenance bypass breaker. At this time, the inner
UPS has no electricity, personnel can perform the maintenance safely.
2.3 Appearance and structure
2.3.1 Appearance
The appearance of this series UPS is as shown in Figure 2-2.
Operating panel
• HP i 33 40 kVA UPS
Figure 2-3. Operating panel
Figure 2-2. Appearance of 40 kVA(/B) UPS
Shows the running parameters (such as voltage, current,
load, etc.) and status
Name Illustration
On (green): Rectifier works normally.
On (red): Rectifier abnormal.
On (green): Inverter works normally.
On (red): Inverter abnormal.
Table 2-1. Illustration for the operating panel
No.
Touch screen
Touch screen
Touch screen
1.
2.
3.
On (green): Bypass output.
On (red): Bypass abnormal.
On (red): Battery low-voltage.
On (red): Output overload.
BYP. indicator
BATT. LOW indicator
OVERLOAD indicator
4.
5.
6.
Press the two buttons for 3 sec., the system will power on.
Press the two buttons for 3 sec., the system will power off.
Press the button, the system will power outage immediately.
ON
combination button
OFF
combination button
EPO emergency
power off button
7.
8.
9.
1
87
2 3 4 5 6 9
EPO
ON ON ON ONOFF OFF EPO

9
2.3.2 Structure layout (Open door)
The structure layout of this series UPS is as shown in Figure 2-4.
Control unit
The control unit of 40 kVA series UPS is as shown in Figure 2-5.
1. Top cover plate
2. Control unit
3. Power breaker
4. Bypass breaker
5. Output breaker
6. Wiring cover plate
7. Wiring holes of
communication wires
8. Maintenance
bypass breaker
Figure 2-4. Structure layout diagram of 40 kVA (/B) UPS
1. Control card (master)
2. SNMP card (optional)
3. System monitor card
4. Control card (minor)
(optional)
5. Expansion dry contact
card (optional)
6. Battery start button
Figure 2-5. Control unit of 40 kVA (/B) UPS
• Expansion dry contact board (optional)
The expansion dry contact communication port includes 4 input dry contact communication signal and 3
output dry contact signal, detailed definition is as shown in Table 2-2 and Table 2-3.
It can be set to battery trip,
output breaker, bypass
output, start generator, sync/
async signal.
When the signal is valid, COM
and NO is closed, COM and NC
is opened. The allowable
voltage-withstand is 250 V/1A.
No. Silk-screen Signal Function illustration
ND5
ND6
ND7
ND8
1
2
3
4
It can be set to battery
grounding
Reserved
When the signal is valid, NO
and COM is short circuited.
No. Silk-screen Signal Function illustration
ND9
ND10
ND11
ND12
1
2
3
4
Table 2-3. Input dry contact function illustration
Table 2-2. Output dry contact function illustration
• Control card
The control card includes two ports: PARALLEL port is used for connecting the parallel UPS; BCS port is
double-busbar system port.
• SNMP card and software (optional)
SNMP card is installed in the SNMP card insert slot of UPS or externally. It can realize remote
management of the UPS through network. For detailed operating setting, please see the user manual of
network adapter.
• Monitor card
Monitor card includes two network ports: MODBUS port is used for the communication of MODBUS, RS485
port is used for the communication of RS. 485.

10
2.3.2 Structure layout (Open door)
The structure layout of this series UPS is as shown in Figure 2-4.
Control unit
The control unit of 40 kVA series UPS is as shown in Figure 2-5.
1. Top cover plate
2. Control unit
3. Power breaker
4. Bypass breaker
5. Output breaker
6. Wiring cover plate
7. Wiring holes of
communication wires
8. Maintenance
bypass breaker
Figure 2-4. Structure layout diagram of 40 kVA (/B) UPS
1. Control card (master)
2. SNMP card (optional)
3. System monitor card
4. Control card (minor)
(optional)
5. Expansion dry contact
card (optional)
6. Battery start button
Figure 2-5. Control unit of 40 kVA (/B) UPS
• Expansion dry contact board (optional)
The expansion dry contact communication port includes 4 input dry contact communication signal and 3
output dry contact signal, detailed definition is as shown in Table 2-2 and Table 2-3.
It can be set to battery trip,
output breaker, bypass
output, start generator, sync/
async signal.
When the signal is valid, COM
and NO is closed, COM and NC
is opened. The allowable
voltage-withstand is 250 V/1A.
No. Silk-screen Signal Function illustration
ND5
ND6
ND7
ND8
1
2
3
4
It can be set to battery
grounding
Reserved
When the signal is valid, NO
and COM is short circuited.
No. Silk-screen Signal Function illustration
ND9
ND10
ND11
ND12
1
2
3
4
Table 2-3. Input dry contact function illustration
Table 2-2. Output dry contact function illustration
• Control card
The control card includes two ports: PARALLEL port is used for connecting the parallel UPS; BCS port is
double-busbar system port.
• SNMP card and software (optional)
SNMP card is installed in the SNMP card insert slot of UPS or externally. It can realize remote
management of the UPS through network. For detailed operating setting, please see the user manual of
network adapter.
• Monitor card
Monitor card includes two network ports: MODBUS port is used for the communication of MODBUS, RS485
port is used for the communication of RS. 485.

11
Note:
The definition for MODBUS port is as follows: pin3 is A, pin6 is B.
The definition for RS485 port is as follows: pin1 is A, pin8 is B.
2.3.3 Alarm function
When the UPS is abnormal, it will send sound and light alarm. Some alarm or protection functions of the
UPS are shown in Table 2-6.
The monitor card contains 6 standard dry contact ports (3 ports are input dry contact, the others are output dry
contact), detailed definition is as shown in Table 2-4 and Table 2-5.
UPS FAULT signal
Mains FAIL signal
BAT. LOW signal
External EPO normal open input
signal
External EPO normal closed input
signal
It can be set to external battery breaker
or external maintenance bypass breaker.
When the signal is valid, NO and
COM is short-circuit.
When the signal is valid, NC and
COM is open-circuit.
When the signal is valid, NO and COM
is short-circuit.
No. Silk-screen Signal Function illustration
EPO1
EPO2
ND4
1
2
3
Table 2-5. Output dry contact function illustration
When the signal is valid, COM and NO is
closed, COM and NC is opened. The
allowable voltage-withstand is 250 V/1A.
No. Silk-screen Signal Function illustration
ND1
ND2
ND3
1
2
3
Table 2-4. Standard output dry contact illustration
EPO enable.
Bypass overload protection.
Bypass output under-voltage.
Inverter output over-voltage.
Inverter output under-voltage.
Inverter overload protection.
Parallel system sovereignty fault.
Parallel system communication abnormal.
Maintenance bypass is on.
Table 2-6. Abnormal status and alarm / protection function
Alarm action Protection action Fault name
Buzzer long
beeps, the red
DC/AC
indicator is on.
Shut down all inverter output
and bypass output.
Shut down all inverter output
and turn to bypass output.
Battery over-voltage.
Battery circuit abnormal.
Battery backup time is not enough.
Battery discharge protection time is up.
Battery under-voltage.
Battery low-voltage alarm.
Bypass power down.
Bypass over-voltage.
Bypass under-voltage.
Buzzer beeps
quickly, the red
BATT. LOW
indicator is on.
It is not allowed to supply
power by battery or charge
battery.
None
It is not allowed to supply
power by battery.
None
Bypass output is not allowed.
Buzzer beeps
slowly, the red
BYP. indicator
is on.

12
Note:
The definition for MODBUS port is as follows: pin3 is A, pin6 is B.
The definition for RS485 port is as follows: pin1 is A, pin8 is B.
2.3.3 Alarm function
When the UPS is abnormal, it will send sound and light alarm. Some alarm or protection functions of the
UPS are shown in Table 2-6.
The monitor card contains 6 standard dry contact ports (3 ports are input dry contact, the others are output dry
contact), detailed definition is as shown in Table 2-4 and Table 2-5.
UPS FAULT signal
Mains FAIL signal
BAT. LOW signal
External EPO normal open input
signal
External EPO normal closed input
signal
It can be set to external battery breaker
or external maintenance bypass breaker.
When the signal is valid, NO and
COM is short-circuit.
When the signal is valid, NC and
COM is open-circuit.
When the signal is valid, NO and COM
is short-circuit.
No. Silk-screen Signal Function illustration
EPO1
EPO2
ND4
1
2
3
Table 2-5. Output dry contact function illustration
When the signal is valid, COM and NO is
closed, COM and NC is opened. The
allowable voltage-withstand is 250 V/1A.
No. Silk-screen Signal Function illustration
ND1
ND2
ND3
1
2
3
Table 2-4. Standard output dry contact illustration
EPO enable.
Bypass overload protection.
Bypass output under-voltage.
Inverter output over-voltage.
Inverter output under-voltage.
Inverter overload protection.
Parallel system sovereignty fault.
Parallel system communication abnormal.
Maintenance bypass is on.
Table 2-6. Abnormal status and alarm / protection function
Alarm action Protection action Fault name
Buzzer long
beeps, the red
DC/AC
indicator is on.
Shut down all inverter output
and bypass output.
Shut down all inverter output
and turn to bypass output.
Battery over-voltage.
Battery circuit abnormal.
Battery backup time is not enough.
Battery discharge protection time is up.
Battery under-voltage.
Battery low-voltage alarm.
Bypass power down.
Bypass over-voltage.
Bypass under-voltage.
Buzzer beeps
quickly, the red
BATT. LOW
indicator is on.
It is not allowed to supply
power by battery or charge
battery.
None
It is not allowed to supply
power by battery.
None
Bypass output is not allowed.
Buzzer beeps
slowly, the red
BYP. indicator
is on.

13
The communication of cabinet inner busbar
3 abnormal.
BSC synchronization wire abnormal.
Table 2-6. Abnormal status and alarm/protection function
Buzzer beeps
slowly.
None
Bypass over-frequency.
Bypass under-frequency.
Bypass phase sequence is wrong.
Bypass lack-phase.
Output circuit abnormal.
Output current DC component is too large.
System card without redundancy.
Environment temperature is too high
Generator fails to start.
Generator fails to shut down.
The communication with touch screen abnormal.
The communication of cabinet
inner busbar 1 abnormal.
The communication of cabinet
inner busbar 2 abnormal.
The UPS will restart and charge the batteries after ensuring
protection for battery under-voltage after mains recover to normal
power supply.
CAUTION
Table 2-6. Abnormal status and alarm/protection function
Buzzer beeps
slowly.
None
The static startup
is not allowed.
ECO output is not allowed.
Mains power supply
is not allowed.
It turns to float charge. Charge
current-limiting value is 0.05C
Charge is not allowed.
Alarm action
Battery low-temperature alarm.
PFC software version is in conformity.
INV software version is in conformity.
System card X-software version is in conformity.
The parallel address repeated.
Cabinet amount is not right.
ECO voltage out of range.
High battery temperature alarm.
Battery over-temperature.
ECO frequency out of range.
Mains power down.
Mains over-voltage.
Mains under-voltage.
Mains voltage inbalance is too large.
Mains over-frequency.
Mains under-frequency.
Mains phase sequence is wrong.
Mains lack-phase.
Mains over-current.
Mains current DC component is too large.
Protection action Fault name
Alarm action Protection action Fault name