Savch S5100 Series User manual

S5100 Series Inverter
High performance vector (Synchronous)
User manual
User manual

S5100 Series Inverter
High performance vector (Synchronous)
User Manual
File No. 520051131810
Vision No. V1.0
Filing time 2018-11-06
SAVCH electric provide a full range of technical support for our customers.
All users could contact with the nearest SAVCH office or service center,
also could contact with our headquarters directly.
SAVCH Electric reserves the copyrights and all rights,
Subject to change without further notice.

CONTENTS
PREFACE ......................................................................................................................................1
1. Safety Instructions .....................................................................................................................2
1.1 Safety precaution ..................................................................................................................2
1.2 Notes for Operation Environment ..........................................................................................6
2. Hardware Description and Installation .......................................................................................7
2.1 Operational Environment .......................................................................................................7
2.2 Installation matters ................................................................................................................8
2.3 Model Description..................................................................................................................9
2.4 Inverter Specifications .........................................................................................................10
2.5 Precautions for Using Inverters ...........................................................................................14
2.6 Wiring..................................................................................................................................16
2.7 External Dimensions............................................................................................................33
3. Keypad Description .................................................................................................................36
3.1 Overview of Keypad Functions ............................................................................................36
3.2 Overview of Operation Modes .............................................................................................38
3.3 Running Mode .....................................................................................................................38
3.4 Programming Mode .............................................................................................................40
3.5 Alarm Mode .........................................................................................................................50
4. Running...................................................................................................................................51
4.1 Test Run ..............................................................................................................................51
4.2 Special Operations ..............................................................................................................59
5. Function Parameters List.........................................................................................................60
6. Function Parameters Description.............................................................................................87
00 Basic Functional Parameters................................................................................................87
01 External Terminal Function Parameters ..............................................................................119
02 Control Function Parameters..............................................................................................142
03 Motor 1 Parameters (For PM motor)...................................................................................148
04 High Performance Functions Parameters ...........................................................................152
05 Motor 2 Parameters (For PM motor),06 Motor 3 Parameters (For PM motor) .....................171
07 Motor 4 Parameters (For three-phase asynchronous motor) ..............................................171
08 Application Function 1 Parameters .....................................................................................181
09 Application Function 2 Parameters .....................................................................................197
11 Serial Communication Parameters.....................................................................................203
7. Failure Indication and Countermeasures ...............................................................................214
7.1 Problems and Troubleshooting procedure .........................................................................216
7.2 Common Abnormal motor operation ..................................................................................228
7.3 Other abnormal conditions.................................................................................................234

8. Maintenance And Inspection..................................................................................................236
8.1 Daily Inspection .................................................................................................................236
8.2 Periodic Inspection ............................................................................................................236
8.3 Measurement of Electrical Amounts in Main Circuit ...........................................................238
8.4 Insulation Test ...................................................................................................................239
9. Options..................................................................................................................................240
9.1 Braking resistor list ............................................................................................................240
9.2 Input/output AC/DC reactor specifications list for S5100 series inverter.............................241

1
PREFACE
Thank you for choosing SAVCH inverter! This instruction manual, which includes operation descriptions and notes
for maintenance, shall be delivered to the end-user.
For safety running and effective operation, this instruction manual shall be read thoroughly prior to use, which
shall also be preserved for later use. Provided problems occur and solution is not provided in this instruction
manual, contact your SAVCH ELECTRIC representative or contact with our company directly. Our professional
technicians will serve for you actively. And please continue to adopt products of SAVCH, give valuable opinion
and advice.
1. Reading Instructions
Symbols of” DANGER” and” CAUTION” in the manual indicates that, for safety running or maintenance of inverters
or other electrical products, attention shall be attached during delivering, installation, operation and checks for the
inverter. And these notes shall be applied for a better and safer operation.
DANGER
If not used correctly, personnel damage even death may be caused.
△
!CAUTION
If not used correctly, serious damage to inverter or machine may be resulted.
DANGER
●Never connect wires while power on. Do not check components or signal for circuit board during operation.
●Do not dismantle or change inner wire, circuit or components unnecessarily.
●Make sure grounding terminals are correctly grounded. 220V level:Grounding Ⅲ; 440V level: Special
Grounding
△
! CAUTION
●Do not perform a withstand voltage test for components of inverter, it can cause semi-conductor components
to be damaged by high voltage.
●Never connect the output terminals U,V,W to AC power supply.
●IC of CMOS on control circuit of the inverter shall be damaged by electrostatic influence. Do not touch main
circuit board.
2. Products Receiving
All products have been performed with strict test and inspection. After receiving the inverters, the following checks
shall be performed.
●To check that SAVCH inverter, an instruction manual is inside of the package.
●To check whether model number correspond with model and capacity your purchase order.
●To check whether there are damaged parts during transportation and delivering. If there are, do not connect
with power supply.
If any of the above checkpoints are not satisfactory, contact your SAVCH ELECTRIC representative for a quick
resolution.

2
1. Safety Instructions
1.1 Safety precaution
Application precaution
Danger
S5100 series inverter is used to drive permanent magnet synchronous motor and three-three asynchronous
motor; it cannot be used for single-phase motors or other purposes.
Otherwise, Fire or an accident could happen.
S5100 series of inverters cannot be used for a life-support system or other purposes directly related to the
human safety.
The product is produced under strict quality control; install safety devices for applications where serious
accidents or property damages are foreseen in relation to the failure of it.
Otherwise, An accident could happen.
Installation precaution
Danger
When handling the inverter, do not draw front cover directly but handle it by the heat sink to prevent the cover
from falling off and to avoid the falling of the inverter and causing personal injury or damage to the inverter.
Install the inverter on a base made of metal or other non-flammable material, Do not place flammable object
nearby to prevent fires.
If several inverters are installed in a electric cabinet, add extra cooling fan to keep the temperature lower than
40 ℃ to prevent over-heating or fire.
Confirm whether the input voltage is identical with the voltage in the nameplate on the right side of the inverter,
Otherwise the malfunction could happen.
Inverters with a capacity of 30 KW or above, whose protective structure is IP00, involve a possibility that a
human body may touch the live conductors of the main circuit terminal block. Inverters to which an optional
DC reactor is connected also involve the same. Install such inverters in an inaccessible place
Otherwise, electric shock or injuries could happen.
△
! Caution
Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting into the inverter
or from accumulating on the cooler.
When changing the positions of the top and bottom mounting bases, use only the specified screws.
Otherwise, it may cause a fire, or an accident.
Do not install or operate an inverter that is damaged or lacking external or internal parts.
Otherwise, it may cause a fire, an accident or injury

3
Wiring Precaution
Danger
When wiring the inverter to the power source, insert a recommended molded case circuit breaker (MCCB) or
residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) (with over-current
protection) in the path of each pair of power lines to inverters. Use the recommended devices within the
recommended current capacity.
Make sure to use the specified wire.
Tighten terminals with specified torque.
When there is more than one combination of an inverter and motor, do not use a multiconductor cable for the
purpose of running the leads together.
Do not connect a surge killer to the inverter's output (secondary) circuit.
Be sure to connect an optional DC reactor (DCR) when the capacity of the power supply transformer exceeds
500 kVA and is 10 times or more the inverter rated capacity(accessories)
Otherwise, it may cause a fire,
Ground the inverter in compliance with the national or local electric code (China is C).
Be sure to ground the inverter's grounding terminals G.
Otherwise, it may cause an electric shock, a fire .
Make sure to perform wiring after turning the power OFF.
Otherwise, it may cause an electric shock.
Do not connect the power supply wires to output terminals (U, V, and W).
Do not connect to terminals other than terminals P (+)and DB ,when connecting the DC brake resistor.
Otherwise, it may cause a fire ,an accident.
Make sure that the control signal wires will not come into contact with live conductors of the main circuit.
Otherwise, it may cause an accident or an electric shock
△
! Caution
The inverter, motor and wiring generate electric noise, and sometimes this may cause the malfunction of
nearby sensors and devices. To prevent malfunction, take measures to prevent implement noise.
Otherwise it may cause an accident

4
Operation Precaution
Danger
Make sure to mount the front cover before turning the power ON; Do not remove the cover when the inverter
power is ON.
Do not operate switches with wet hands.
Otherwise, it may cause an electric shock
If the auto-reset function has been selected, the inverter may automatically restart and drive the motor
depending on the cause of tripping. Design the machinery or equipment so that human safety is ensured at
the time of restarting.
If select the stall prevention function (current limit), automatic deceleration or anti-regenerative control and
overload prevention control have been selected, it may operate with the acceleration/deceleration or
frequency different from the commanded ones . Design the machine so that safety is ensured even in such
cases.
If any of the protective functions have been activated, first remove the cause. Then, after checking that the all
run commands are set to OFF, release the alarm. If the alarm is released while any run commands are set to
ON, the inverter may supply the power to the motor, running the motor.
Otherwise it may cause an accident.
Danger
If you enable the "Restart mode after momentary power failure", then the inverter automatically restarts
running the motor when the power is recovered. Design the machinery or equipment so that human safety is
ensured after restarting.
If the user configures the function codes wrongly without completely understanding this Instruction Manual
and this User's Manual, the motor may rotate with a torque or at a speed not permitted for the machine.
Otherwise, it may cause an accident or injury
Even if the inverter has interrupted power to the motor, if the voltage is applied to the main circuit input
terminals L1/R, L2/S and L3/T, voltage may be output to inverter output terminals U, V, and W.
Even if the motor is stopped due to DC braking or preliminary excitation, voltage is output to inverter output
terminals U, V, and W.
Otherwise, it may cause an electric shock.
The inverter can easily accept high-speed operation. When changing the speed setting, carefully check the
specifications of motors or equipment beforehand.
Otherwise it may result in injury accident

5
△
! Caution
Do not touch the cooler and braking resistor because they become very hot.
Otherwise, it may cause burns.
The DC brake function of the inverter does not provide any holding mechanism.
Otherwise, it may cause an injury accident.
Maintenance and Parts Replacement Precaution
Danger
Before proceeding to the maintenance/inspection jobs, turn OFF the power and wait at least five minutes for
inverters of 22kW or below, or at least ten minutes for inverters of 30kW or above. Make sure that the LED
monitor and charging lamp are turned OFF. Further, make sure, using a multimeter or a similar instrument,
that the DC link bus voltage between the terminals P(+) and N(-) has dropped to the safe level (+25 VDC or
below)
Otherwise, it may cause an electric shock
Maintenance and parts replacement should be made only by qualified persons.
Take off the metallic objects (watch, rings) before starting work.
Use insulated tools .
Never modify the inverter.
Otherwise,it may cause an electric shock or injury
Disposal Precaution
△
! Caution
Treat the inverter (S5100) as an industrial waste when disposing of it.
Otherwise,It may cause an injury accident

6
1.2 Notes for Operation Environment
Direct sunlight Corrosive gas or fluids Oil
Radioactive materials Locations of inflammable
materials
Extreme low temperatures Extreme high ambient
temperatures (Above 40℃)
Large impelling
Salt or saline Rain, moisture Iron chips and dust
？
Electromagnetic waves
and ultra high-angle rays
(For example：locations of
welding machines and etc.)
Oil
cool
Below 10 degrees Celsius
Force
Force
Force
Force
Force
Force
Salt

7
2. Hardware Description and Installation
2.1 Operational Environment
Installation environment has a direct impact on the normal function of and life span of the inverter, so install
S5100 series of inverters in an environment that satisfies the requirements listed in Table 2.1:
Table 2.1 Operational Environmental Requirements
Items
Specifications
Ambient temperature
-10 to+50℃; When inverters (22kW or below) are mounted side-by-side without any
clearance between them, the surrounding temperature should be within the range
from -10 to +40°C (14 to 104°F)
Relative humidity
No condensation below 90%
Environment
Atmosphere
The inverter must not be exposed to dust, direct sunlight, corrosive, gases,
flammable gases, oil mist, lint and small metal filings,vapor,electromagnetic
interference (welding machines, power machines) , water drops, or vibration
(punch).
Keep away from radioactive materials and flammable object.
Install antivibration pads to reduce vibration if vibration cannot be avoided
Altitude
1,000 m or less (Note 1)
Atmospheric pressure
86~106kPa
Vibration
3mm (max. amplitude) within 2 ~ 9 Hz
9.8 m/s2within 9 ~ 20 Hz
2 m/s2within 20 ~ 55 Hz
1 m/s2within 55 ~ 200 Hz
(Note 1) If you use the inverter in an altitude above 1000 m (3300 ft), you should apply an output current derating
factor as listed in Table 2.2.
Table 2.2 The output Current Derating Factor in Relation to Altitude
Altitude
Output current derating factor
1,000 m (3300 ft)or lower
1
1,000~1,500m
0.97
1,500~2,000m
0.95
2,000~2,500m
0.91
2,500~3,000m
0.88

8
2.2 Installation matters
(1) Installing base
Install the inverter on a base made of metal or other non-combustible; do not mount it upside down, obliquely or
horizontally.
Warning
Install the inverter on a base made of metal or other non-combustible.
Otherwise ,it may cause a fire.
(2) Installation Clearance
Make sure that the minimum clearances indicated in Figure 2.1 and Table 2.3 are maintained at all times. When
mounting the inverter in the panel of your system, take extra care with ventilation inside the panel as the
surrounding temperature easily rises. Do not mount the inverter in a small panel with poor ventilation, it’s easy to
cause failure due to the inverter overheating.
Figure 2.1 Installation diagrammatic drawing
Table 2.3 Installation Clearance (mm)
Inverter
capacity
A
B
5.5~22kW
10
100
30~75 kW
50
(3) Installing two or more inverters
When installing several inverters in the same unit or panel, install them side by side. When one must be installed
above the other, be sure to separate them with a partition plate, or the like, so that any heat radiating from an
inverter will not affect the one/s above. and pay attention to put the position for cooling , must install cooling fans
onthe case, tomake the inverter surrounding temperature below50 ℃for the principle.As long as the surrounding
temperature is 40°C(104°F) or lower, inverters of 22kW or below can be mounted side by side without any
clearance between them.
INSIDE THE CABINET
(FALSE)
AIR EXCHANGE FAN
INSIDE THE CABINET
INSIDE THE
CABINET
(CORRECT)(FALSE)(CORRECT)
INSIDE THE CABINET
AIR EXCHANGE FAN

9
2.3 Model Description
Model
Input power supply Spec
Output power supply Spec
Output frequency
TYPE: S5100-4T5.5G
SOURCE: AC 3PH 380~480V 50/60Hz
OUTPUT: 3PH 0~480V 10kVA 13.5A
FREQUENCY RANGE: 0.1~500Hz
S/N:
NJ3019380000037
SAVCH ELECTRIC CO.,LTD
Designed by Savch Electric
Product series
name
S 5100 - 4T 5.5 G
Input power
source:
4T: 3 ph 440V
Applicable
motor rating
5.5：5.5kW
7.5：7.5kW
. .
. .
. .
22：22kW
. .
. .
. .
200：200kW
SAVCH G: General

10
2.4 Inverter Specifications
2.4.1 Standard Specifications
(5.5 to 110kW) HD (Heavy Duty) spec for heavy duty
Item
Specifications
Type(S5100-4T***G)
5.5
7.5
11
15
18.5
22
30
37
45
55
Nominal applied motor[kW](*1)(rated
output)
5.5
7.5
11
15
18.5
22
30
37
45
55
Rated output
Rated power [kVA] (*2)
10
14
18
24
29
34
45
57
69
85
Voltage [V]
3 ph 380~480V(With AVR function)
Rated current [A]
13.5
18.5
24.5
32
39
45
60
75
91
112
Overload capability
150%-1min,200%-3.0s
Input power
Voltage, frequency
380~480V,50Hz /60Hz
Voltage, frequency variations
Voltage:+10~15%(Interphase unbalance rate is within 2%,
frequency:+5~-5%)
Required power supply capacity(with
DCR) [kVA] (*3)
7.4
10
15
20
25
30
40
48
58
71
Rated input current (without DCR)
[A]
17.3
23.2
33
43.8
52.3
60.6
—
Rated input current (with DCR) [A]
—
62
76
91
105
Braking torque [%]
100%
20%
10~15%
Braking transistor
Standard built-in
—
DC reactor(DCR)
Optional (*4)
Standard built-in
Enclosure
IP20 closed type
IP00
Cooling method
Fan cooling
Item
Specifications
Type (S5100-4T***G)
75
90
110
132~200kW on the way
Nominal applied motor[kW](*1)(rated output)
75
90
110
Rated output
Rated power [kVA] (*2)
114
134
160
Voltage [V]
3 ph 380~480V(With AVR function)
Rated current [A]
150
176
210
Overload capability
150%-1min,200%-3.0s
Input power
Voltage, frequency
380~480V,50Hz /60Hz
Voltage, frequency variations
Voltage:+10~15%(Interphase unbalance rate is within 2%,
frequency:+5~-5%)
Required power supply capacity
(with DCR) [kVA] (*3)
96
114
140
Rated input current (without DCR) [A]
—
Rated input current (with DCR) [A]
140
160
210
Braking torque [%]
10~15%
Braking transistor
—
DC reactor (DCR)
Optional (*4)
Enclosure
IP00
Cooling method
Fan cooling

11
(5.5 to 110kW) ND (Normal Duty) spec for light duty
Item
Specifications
Type(S5100-4T***G)
5.5
7.5
11
15
18.5
22
30
37
45
55
75
90
110
Nominal applied
motor[kW](*1)(rated output)
7.5
11
15
18.5
22
30
37
45
55
75
90
110
132
Rated output
Rated power [kVA] (*2)
12
17
22
28
33
45
57
69
85
114
134
160
192
Voltage [V]
3 ph 380~480V(With AVR function)
Rated current [A]
16.5
23
30.5
37
45
60
Overload capability
120%-1min
Input power
Voltage, frequency
380~480V,50Hz /60Hz
Voltage, frequency
variations
Voltage:+10~15%(Interphase unbalance rate is within 2%, frequency:+5~-
5%)
Required power
supply capacity(with
DCR) [kVA] (*3)
10
15
20
25
30
40
48
58
71
96
114
140
165
Rated input current
(without DCR) [A]
23.2
33
43.8
52.3
60.6
77.9
—
Rated input current
(with DCR) [A]
—
76
91
105
140
160
210
240
Braking torque [%]
70%
15%
7~12%
Braking transistor
Standard built-in
—
DC reactor(DCR)
Optional (*4)
Standard built-in
Optional (*4)
Enclosure
IP20 closed type
IP00
Cooling method
Fan cooling
(*1) Suitable 6-pole standard motor.
(*2) Rated capacity is calculated by assuming the output rated voltage as 440V.
(*3) Obtained when a DC reactor (DCR) is used.
(*4)DC reactor (DCR) is optional part, inverter of 75KW or above must use together with the DC reactor (DCR).

12
2.4.2 Common specifications
Item
Explanation
Output frequency
Max. frequency
25~500Hz
Base frequency
25~500Hz (in conjunction with the maximum frequency)
Starting frequency
0.1~60.0Hz
Carrier frequency
·2 to 15 kHz (HD mode:5.5 to 45 kW, ND mode:5.5 to 18.5 kW).
·2~10kHz(HD mode：55~200kW,ND mode：22~45kW)
·2~6kHz(ND mode：55~200kW)
Note: The carrier frequency may automatically drop depending upon the
surrounding temperature or output current to protect the servo drive. (The
automatic drop function can be disabled)
Frequency output
accuracy
• Analog setting: ±0.2% of maximum frequency (at 25 ±10℃)
• Keypad setting: ±0.01% of maximum frequency (at -10 to +50℃)
Setting resolution
• Analog setting: 1/3000 of maximum frequency (1/1500 for AUI input)
• Keypad setting: 0.01 Hz (99.99 Hz or less), 0.1 Hz (100.0 to 500.0 Hz)
• Link operation setting: 1/20000 of maximum frequency or 0.01 Hz (fixed)
Control
Control method
• Vector control without sensor • Vector control with sensor (optional PG card)
Starting torque
• HD mode: more than 150%, ND mode:: more than 100%
Start/stop
operation
• Keypad (RUN/STOP keys), external signals (run forward (run reverse) run/stop
command etc.),Communications link (RS-485).
FrequencySetting
• Keypad (Can use UP/DOWN keys to set)
• Analog input:DC0 to ±10V/0 to ±100%(terminal AVI、AUI)
:DC 4 to 20mA/0 to 100% (terminal AVI)
• UP/DOWN operation: Multi-frequency (16 steps), 16-bit parallel
• Pulse train input (standard): Pulse input = MI7 terminal, Rotational direction =
general terminals
• Communications link
• Reference frequency switching, Remote/local mode switching, Auxiliary
frequency setting, Proportional operation setting, and Inverse operation.
Acceleration/
deceleration time
0.00 to 6000 s，Linear/S-curve/curvilinear, Acceleration/deceleration time settings
1 to 4 switchable.
Stop control
• Running continued at the stop frequency, coast-to-stop, or force to stop
Auto-restart after
momentary power
failure
• Trip immediately, trip after recovery from power failure, trip after deceleration to
stop.
• Continue to run, restart after searching for idling motor speed.
Torque limiter
• Torque limit value ±200%
• Torque limiter 1/2, analog torque limit value.
Control functions
• Analog input adjustment (gain/offset/filter time constant), frequency limiter (high
and low), bias frequency, jump frequency, frequent star running, jogging operation,
cooling fan ON/OFF control, select motor 2 to 4, protect motor from dew
condensation, universal DI, universal DO,universal AO, rotational direction
limitation.
• Overload prevention control, Overvoltage Automatic deceleration (Anti-
regenerative control), PID process control, PID dancer control.
• Auto-tuning (Operating modes: motor load, do not connect the mechanical
transmission parts.)
• Light alarm, retstar, command loss detection.

13
Item
Explanation
Digital input
Run/stop forward and reverse command, select multi-frequency , select ACC/DEC
time,3-wire operation stop command , Coast-to-stop command,reset alarm, enable
external alarm trip, ready for jogging, select frequency command 2/1, select motor 1
to 4, enable DC braking, select torque limiter level, UP/DOWN command, enable
data change with keypad, cancel PID control, switch normal/inverse operation,
interlock,cancel torque limiter, enable communications link via RS-485,universal DI,
force tostop, pre-excitation, reset PIDintegral and differential components, holdPID
integral component, External terminal command control /control switch operation
panel, pulse train input, pulse train sign
Transistor output
Servo drive running, frequency arrival signal 1/3, frequency detected (3 points),
under voltage detected (inverter stopped),torque polarity detected, inverter output
limiting, auto-restarting after momentary power failure, motor overload early
warning, keypad operation, servo drive ready to run, select the AX terminal
function (primary side MC), servo drive output limiting with delay, cooling fan in
operation, auto-resetting, universal DO, heat sink overheat early warning, service
lifetime alarm, reference loss detected, inverter operating, overload prevention
control, current detected (3 points), low level current detected, PID alarm, under
PID control, PID control stopped due to slow flow water, low output torque
detected, torque detected (2 points),switched to motor 1 to 4, run forward signal,
run reverse signal, inverter in remote operation, PTC status detection enabled,
brake signal, analog frequency reference loss on the terminal [ACI], inverter
keeping speed output, speed arrived, PG error detected, maintenance timer, light
alarm, alarm relay contact output (for any fault), braking resistor broken, the end of
the pole position detection
Analog output
• Terminals AFM: Output a selected signal with DC voltage (0 to +10 V) or DC current
(4 to 20 mA)
• Terminals DFM:Output a selected signal with pulse (25 to 6000p/s log voltage (0
to +10 V)
＜Selectable output signals＞
Output frequency (command value、the estimated value、detected value), output
current, output voltage, output torque, load factor, input power, PID feedback
amount, speed detected value / speed estimated value, DC link bus voltage,
universal AO, motor output, calibration, PID command , PID output.
Indication
Run /stop
Speed monitor (reference frequency (Hz), output frequency, motor speed, load shaft
speed, line speed, speed in %). Output current, output voltage, torque calculation
value, input power, PID command value, PID feedback amount, PID output, load
factor, motor output, torque current, flux command, analog signal input monitor,
cumulative inverter run time, cumulative motor run time, input watt-hour, number of
startups, I/O checking, energy-saving monitor.
Alarm information
Alarm history: Saves and displays the last 4 alarm code and their detailed
description
Others
Communications
RS-485 COMport 1 (for keypad connection), RS-485 COM port 2 (onterminal block)

14
2.5 Precautions for Using Inverters
The precautions for installation environment, power supply lines, wiring, and connection to peripheral equipment.
Be sure to observe those precautions.
■Storage environment
Store it to follow the special environments listed below the table.
< Storage and transport environment>
Items
Specifications
Storage environment
temperature
-25 ~ +70 ℃(shorter storage temperature during transportation, etc.)
Relative humidity
below 90% (No condensation)
Environment
The inverter must not be exposed to dust, direct sunlight, corrosive gas, flammable
gas, oil mist, steam, water drops, and vibration.The atmosphere can contain a
small amount of salt. (0.01 mg/cm2 or less per year)
Atmospheric pressure
86 ~ 106kPa (Storage)
70 ~ 106 kPa (transportation)
■Wiring Precaution
(1) Route the wiring of the control circuit terminals as far fromthe wiring of the main circuit as possible. Otherwise
electric noise may cause malfunctions.
(2) Fix the control circuit wires inside the inverter to keep them away from the live parts of the main circuit (such
as the terminal block of the main circuit).
(3) One inverter can not control multiple units of PM motor
(4) The wiring length from the inverter to the motor should not be too long, since a high-frequency current may
be generated by stray capacitance between the cables and result in an over-current trip of the inverter, an
increase in leakage current, or a reduction in current indication precision. Therefore, when the motor is driven
by a inverter, the cable length is kept under 50m, If use longer cable ,it’s more than 50m, especially in the
case of connecting shielded cable with large capacitance toward ground, reduce the use of carrier frequency
or use output filter.
Condition without output filter
Condition with output filter
Power
Inverter
Below 50m
Motor
Power
Inverter
Below 400m
Motor
Below 5m Output filter
When there is an output filter, please ensure that the total length of wiring is within 400m (within 100m when
vector controls)
(5) Precaution of surge voltage when the inverter drives (especially 440V class common motor)
When the inverter drives motor through the PWM way, the surge voltage generated by the inverter elements
switching and output voltage overlap and are applied on the motor terminals. Especially when the motor
wiring is longer, the surge voltage may cause insulation deterioration of the motor. Please conduct any
countermeasures as follows.
• Use well-insulated motor.
• Connect output filter to the output side of inverter (secondary side).
• Try to shorten the length of wiring between the inverter and motor.
■ Precautions of connecting peripheral devices
(1) When the supply of power transformer is above 500kVA or the power transformer switches a phase
capacitor, it’s easy to cause internal failure or damage of the inverter due to too large surge voltage input to
the inverter. Use AC reactor in the inverter’s input circuit of (accessories) to avoid this situation.

15
(2) Precautions of power system (applicable for DC reactor and AC reactor)
When the supply of power transformer is above 500kVA and is 10 times more than the rated power of the
inverter with semiconductor switching elements load in the same power system, use the DC reactor
(accessories), otherwise % reactance of power will turn small; the harmonic components in the current flowing
into the inverter will increase; the value of wave height will increase.
May cause damage to the rectifier bridge, main circuit capacitors and other components of the inverter as well
as the capacity reduction of capacitor and so on.
(3) Improvement of input power factor (the reduction of higher harmonic) (applicable to DC reactor)
In order to improve the input power factor (reduce higher harmonic), use DC reactor (accessories), and then
the power reactors will turn large; high harmonic currents will be suppressed; the power factor of inverter will
be improved.
(4)Moulded Case Circuit Breaker (MCCB)
Install the recommended Moulded Case Circuit Breaker (MCCB) or earth leakage circuit breaker (ELCB) (with
over-current protection) for the wiring protection in the inverter’s input (primary) circuit. Use recommended
circuit breaker within the recommended current capacity to ensure the protection.
Moulded Case Circuit Breaker (MCCB) / Earth Leakage Circuit Breaker (ELCB)
Supplyvoltage
Applicable standard
motor(kW)
Type of inverter
Specification
Rated Current (A) of MCCB, ELCB
DC reactor
Yes
No
3-phase 440V
5.5
S5100-4T5.5G
HD
15
30
7.5
ND
20
40
S5100-4T7.5G
HD
11
ND
30
50
S5100-4T11G
HD
15
ND
40
60
S5100-4T15G
HD
18.5
ND
75
S5100-4T18.5G
HD
22
ND
50
100
S5100-4T22G
HD
30
ND
75
125
S5100-4T30G
HD
37
ND
100
S5100-4T37G
HD
45
ND
150
S5100-4T45G
HD
55
ND
125
200
S5100-4T55G
HD
75
ND
175
-
S5100-4T75G
HD
90
ND
200
S5100-4T90G
HD
110
ND
250
S5100-4T110G
HD
132
ND
300
Note: In order to avoid the residual current circuit-breaker error, please choice the induction current with 200mA
or above, and operation time with 0.1s or above.

16
(5) Magnetic contactor (MC):the inverter’s input (primary) circuit
Switching magnetic contactor once can run / stop the inverter, but it’s easy to cause failure due to frequent
switching; the number of run / stop should be no more than once per hour at most. Do not use magnetic contactor
as the power switch of the inverter, which could reduce the life of the inverter.
Tips •It’s recommended that the timing sequence of magnetic contactor in the input side be disconnected by
the fault alarm signal of the inverter for safety. In the event of damage to the inverter, 2 times of damage
can be limited to the minimum scope. In this case, connect control power auxiliary input from the primary
side of magnetic contactor, and then the running condition when an alarm occurs can be confirmed from
thekeypad of the inverter.
•Damage to braking unit or the wrong connection of external braking resistor may cause damage to the
internal machine of the inverter (charging resistors, etc.). If the magnetic contactor fails to output DC bus
voltage or establish signal within 3 seconds after switched on, damage to braking unit or wrong
connection of external braking resistor may be caused. In this case, the damage in a failure cannot be
expanded via the timing sequence of the circuit breaker magnetic contactor. In the built-in models of
braking transistor, output the abnormality detection signal of braking transistor and cut off the magnetic
contactor in input side according to the signal.
(6) Magnetic contactor (MC):the inverter’s output (secondary)
When setting the magnetic contactor in the inverter’s output (secondary) for switching to commercial power,
switch after both the inverter and the motor are OFF in order to prevent the roughness of contacts caused by
the arcing of magnetic contactor. Do not install the main circuit surge absorber on the magnetic contactor.
(7) Connecting surge absorber and surge killer in the inverter output (secondary) circuit is prohibited.
■ PM Motor using Precautions
(1)One inverter can not control multiple units of PM motor
(2)PM motor can not run when connecting with power frequency, the motor may damage if running.
(3)When there is a brake, release the brake, then restart the motor.
(4)PM motor does not apply to the vertical transport use, such as lift machine etc.
2.6 Wiring
Perform wiring in accordance with the following steps. (Make instruction when the inverter has been installed).
2.6.1 Removal and installation of the cover and cable lead-in plate
(1) Below the capacity of 22kW:
① Loosen the cover screws; support the cover around the ends by hand; slide below and incline forward; remove
upwards.
② Push the cable lead-in plate up, slide forward and remove it simultaneously before performing wiring.
③ Install the wiring lead-in plate and the surface casing in the reverse order of the above steps after performing
wiring.
Figure 2.2 Removal of surface cover and cable lead-in plate (case of S5100-4T5.5G ~ 22G)