INVT MH860A Series User manual

MH860Aseries hydraulic servo drive Preface
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Preface
Thank you for choosing our MH860Aseries hydraulic servo drive.
Designed for hydraulic equipment such as injection molding machine, die-casting machine,
and hydraulic press, the servo drive features energy saving, high accuracy, high efficiency
and durability for adopting high performance vector control. The drive has rich external
expansion and CAN communication interfaces, helping to form a multi-pump parallel system
to realize the hydraulic control on large flow equipment.
If you use the drive for the first time, please read this manual carefully to ensure correct and
safe operation. Please keep this manual in a safe place so that it can be consulted at any
time.
We are committed to the continuous product improvement and upgrade. The background
software and product information will be updated accordingly.
The target audiences of the manual include:
Control system designer
Installation or wiring personnel
User or maintenance personnel
Please make sure to observe the following:
The installation environment must be free of water vapor, corrosive gases, or
combustible gases.
Do not connect the grid power directly to the U, V and W terminals of the motor when
wiring. Otherwise, incorrect connection will cause drive or motor damage.
Ground wires must be grounded safely.
Do not disassemble the drive, motor, oil pump, or change the wiring while the power is
on.
Do not touch the heat sink at work to avoid burns.
We provide all-round after-sales and maintenance services. Do not disassemble the drive or
motor housing unless authorized; any modification on the drive or motor or damage
accompanied will revoke the warranty rights; and we will not be liable or responsible for the
consequences caused.
If you have any questions during use, please consult the dealer or our customer service
center.

MH860Aseries hydraulic servo drive Contents
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Contents
Preface...........................................................................................................................................i
Contents .......................................................................................................................................ii
1 Safety precautions.....................................................................................................................1
1.1 Safety definition.................................................................................................................1
1.2 Safety guidelines ...............................................................................................................1
2 Product overview.......................................................................................................................3
2.1 Product confirmation..........................................................................................................3
2.2 Drive nameplate.................................................................................................................3
2.3 Drive model description......................................................................................................3
2.4 Drive specifications............................................................................................................4
2.5 Drive technical performance...............................................................................................5
2.6 Dimensions of drive...........................................................................................................7
2.6.1 Wall-mounting dimensions .......................................................................................7
2.6.2 Flange mounting dimensions....................................................................................8
2.7 Motor nameplate..............................................................................................................10
2.8 Motor model description...................................................................................................10
2.9 Motor specifications.........................................................................................................11
2.10 Mechanical characteristics.............................................................................................11
2.11 Motor installation dimensions .........................................................................................12
3 Mechanical installation............................................................................................................14
3.1 Installation environment...................................................................................................14
3.2 Installing the drive............................................................................................................15
3.2.1 Installation direction...............................................................................................15
3.2.2 Installation method.................................................................................................15
3.2.3 Single-unit installation............................................................................................16
3.2.4 Multiple-unit installation..........................................................................................16
3.3 Disassembling/assembling the junction box of drive.........................................................17
3.4 Installing the motor ..........................................................................................................18
4 Electrical connection...............................................................................................................20
4.1 Wiring precautions...........................................................................................................20
4.2 Switch, contactor, and cable selection..............................................................................21
4.3 Terminal layout.................................................................................................................22
4.4 Standard wiring................................................................................................................23
4.5 Jumper function...............................................................................................................24
4.6 Main circuit wiring............................................................................................................25
4.6.1 Main circuit terminals .............................................................................................25
4.6.2 External HMI terminals and resolver terminals........................................................27
4.6.3 Motor power cable and temperature measuring resistor terminals ..........................28

MH860Aseries hydraulic servo drive Contents
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4.6.4 Motor resolver connection cable and terminals.......................................................29
4.6.5 Typical wiring examples of main circuit...................................................................29
4.6.6 Wiring procedure for main circuit terminals.............................................................30
4.7 Input and output signal wiring...........................................................................................30
4.7.1 Control circuit terminals..........................................................................................30
4.7.2 Typical control signal wiring examples....................................................................34
4.8 Control signal interface circuit..........................................................................................34
4.8.1 Analog input circuit.................................................................................................34
4.8.2 Analog output circuit...............................................................................................35
4.8.3 Digital input circuit..................................................................................................35
4.8.4 Digital output circuit................................................................................................36
4.9 CAN communication card ................................................................................................37
4.10 EtherCAT communication card (EC-TX508) ...................................................................38
5 Operating through the LED panel...........................................................................................40
5.1 LED keypad introduction..................................................................................................40
5.2 LED panel functions.........................................................................................................42
5.2.1 Keypad operation mode.........................................................................................42
5.2.2 Shortcut mode .......................................................................................................43
5.2.3 Quick setup mode..................................................................................................44
5.2.4 Monitoring mode....................................................................................................51
5.2.5 Setup mode...........................................................................................................53
5.2.6 Debug mode..........................................................................................................76
5.2.7 Multi-pump mode...................................................................................................78
6 Commissioning........................................................................................................................82
6.1 Pressure control commissioning.......................................................................................82
6.1.1 Flowchart...............................................................................................................82
6.1.2 Commissioning procedure......................................................................................82
6.2 Speed mode commissioning............................................................................................89
7 Multi-pump combined flow control.........................................................................................90
7.1 Flow distribution method for multi-pump flow combining...................................................90
7.2 Multiple pumps ................................................................................................................91
7.3 Hybrid..............................................................................................................................92
7.4 Multiple modes ................................................................................................................93
7.5 Communication with two models......................................................................................94
7.6 Communication with four models .....................................................................................96
7.7 Multi-pump control mode settings.....................................................................................99
7.7.1 Pump model selection............................................................................................99
7.7.2 Multi-pump parameter settings...............................................................................99
7.7.3 Flow calibration....................................................................................................100
8 Troubleshooting ....................................................................................................................101

MH860Aseries hydraulic servo drive Contents
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8.1 Display list for protection................................................................................................101
8.2 Fault handling flowcharts ...............................................................................................105
8.3 Common faults and solutions......................................................................................... 119
9 Maintenance and inspection.................................................................................................121
9.1 Precautions ...................................................................................................................121
9.2 Check item ....................................................................................................................121
9.3 Main circuit insulation test..............................................................................................121
9.4 Replacement of wearing parts........................................................................................122
9.4.1 Service life...........................................................................................................122
9.4.2 Replacement .......................................................................................................122
10 Accessories .........................................................................................................................123
10.1 Noise filter model selection ..........................................................................................123
10.2 Braking resistor model selection and installation...........................................................123
10.3 Pressure sensor model selection .................................................................................126

MH860Aseries hydraulic servo system Safety precautions
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1 Safety precautions
Read this manual carefully and follow all safety precautions before moving, installing,
operating andservicing the product. Otherwise, equipment damage or physical injury or death
may be caused.
We shall not be liable or responsible for any equipment damage or physical injury or death
caused due to your or your customers’ failure to follow the safety precautions.
1.1 Safety definition
The precautions for safe operation in the manual are classified into "Danger", "Warning" and
"Note".
Symbol
Name
Description
Danger
Danger
Serious personal injury or death may occur if the operation
requirements are not followed.
Warning
Warning
Personal injury or equipment damage may occur if the
operation requirements are not followed.
Note
Note
Moderate personal injury may occur if the operation
requirements are not followed.
1.2 Safety guidelines
Danger
1. Only trained and qualified professionals can perform the
installation or maintenance.
2. Do not perform wiring, inspection or component replacement
when the power is on. Before wiring or inspection, ensure all the
input power supplies have been disconnected, and wait for at
least 10 minutes or until the DC bus voltage is lower than 36V.
3. Please use insulated protective tools for inspection; otherwise,
electric shock accident or personal injury may be caused.
4. Connect the ground wires reliably and ask professionals to
performing wiring to avoid electric shock or fire accident.
5. Do not install the motor, braking resistor, or driver near
combustible materials; otherwise, fire may be caused.
6. Do not modify the product unless authorized; otherwise, electric
shock, malfunction, burns, or fire may be caused.
Warning
1. Do not hold or pull the aviation plug connector to deliver the
motor. Otherwise, the connector may be damaged, which may
cause the motor to fall and cause injury.
2. Do not knock the motor when installing the motor. Otherwise, the
precision parts on the shaft may be damaged or the accuracy may
be degraded.

MH860Aseries hydraulic servo drive Safety precautions
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3. The surface temperature of the motor may reach 100℃when
running continuously at full load. The temperature is within the
allowable range of design and can be operated normally, but you
must install the motor in a place unaccessible to people and
animals to avoid scalding.
4. The external braking resistor may rise to a high temperature when
the motor is frequently braked, which requires well-ventilated heat
dissipation. It is recommended to place the motor outside the
control cabinet (such as at the top ventilator outlet) with reliably
protection measures. When the motor must be installed inside the
cabinet, install it near the top ventilator outlet and away from other
components.
5. Check all external wiring carefully before first power-on to avoid
major accidents caused by incorrect wiring.
6. Turn on the motor for the first time with no load if possible, and
make ready to turn off it depending on the running conditions.
7. Do not close or open the power supply, but enable or disable the
setup to start or stop the servo system.
8. The product contains electrolytic capacitors, integrated circuits,
epoxy boards and other components. Dispose of a scrap product
as industrial waste; otherwise, personal injury or environmental
pollution may be caused.
Note
1. Protect the drive against physical shock or vibration during the
delivery and installation. Do not carry the drive only by its front
cover as the cover may fall off.
2. Prevent the screws, cables and other conductive parts from falling
into the drive.
3. R, S, and T are the power input terminals, while U, V, and W are
the output motor-connection terminals. Connect the input power
cables and motor cables properly; otherwise, damage to the drive
may occur.
4. Close the drive front cover or junction box before using the drive;
otherwise, electric shock may occur.
5. Use proper torque to tighten screws for installation and wiring.
6. Do not carry out insulation voltage-endurance test on the drive, or
measure the control circuits of the drive with a megohmmeter.
For workplaces where the occasional failure of product could cause a major accident or
significant damage, please consider equipment safety separately.
The manufacturer, seller, and service provider shall not be liable or responsible for
associated damages and joint liability due to servo system failure.

MH860Aseries hydraulic servo drive Product overview
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2 Product overview
2.1 Product confirmation
Check the following after receiving the product.
Item
Remarks
Check that the product you have
received is consistent with the purchased
model.
Check according to the models on the motor and
drive nameplates.
Check that the rotating shaft of the motor
runs properly.
The motor is proper if the shaft rotates by hand.
Check that there is damage.
View the entire exterior and check for any damage
caused during delivery.
Check that all accessories and
documents are included.
Check according to the packing list.
If any problems are found, contact our local dealer or office.
2.2 Drive nameplate
Model: MH860A-S060TF7
Power(Output): 30kW
Input: AC 3PH 380V(-15%)-440V(+10%) 47Hz-64Hz
Output: AC 3PH 0V-Vin 0Hz-400Hz 60A
S/N: Made in China
Shenzhen INVT Electric Co.,Ltd
IP20
Figure 2-1 Drive nameplate
2.3 Drive model description
MH860A
-S
025
T
F
7
Product
category:
Hydraulic
product series
Communication
mode:
S: Standard
C: CAN
communication
E: EtherCAT
communication
F: PROFINET
Current class:
018: 18.5A
025: 25A
032: 32A
038: 38A
045: 45A
060: 60A
075: 75A
092: 92A
115: 115A
150: 150A
180: 180A
215: 215A
Voltage
class
T: 380V
Air cooling
type
F: Air
cooling
Encoder type
7: Rotary

MH860Aseries hydraulic servo drive Product overview
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2.4 Drive specifications
Drive
model
Appli-
cable
motor
capacity
(kW)
Rated
output
current
(Arms)
Overload
(Arms)
lasts
5min
Max.
output
current
(Arms)
lasts
30s
Rated
input
current
(Arms)
Input
power
Weight
(kg)
Recommended
regenerative
braking
resistor
specification
Min.
braking
resistance
(Ω)
MH860A-
S018TF7
7.5
18.5
26
32.5
25
AC380V
(-15%)
–
440V
(+10%)
47Hz –
63Hz
4.8
40Ω 500W
31
MH860A-
S025TF7
11
25
35
40.7
32
MH860A-
S032TF7
15
32
48
55.2
40
6.1
23
MH860A-
S038TF7
18
38
53
63.6
47
MH860A-
S045TF7
22
45
67
81.3
56
9.5
15Ω 500W
15
MH860A-
S060TF7
30
60
99
113
70
14.5
9.5
MH860A-
S075TF7
37
75
109
141
80
10Ω 2000W
MH860A-
S092TF7
45
92
138
169.7
94
21
6.4
H860A-S
115TF7
55
115
167
226
128
MH860A-
S150TF7
75
150
195
297
160
27
Two 20Ω
2000W
resistors
connected in
parallel
MH860A-
S180TF7
90
180
242
318
190
49
Two 10Ω
2000W
resistors
connected in
parallel
4.4
MH860A-
S215TF7
110
215
258
350
225

MH860Aseries hydraulic servo drive Product overview
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2.5 Drive technical performance
Item
Condition
Basic
specifications
Control mode
Three-phase full-wave rectification, IGBT with
pwm control on sine wave current drive
Max. output frequency
400Hz
Motor position sensor
Resolver resolution: 4096PPR
Environment
Working
temperature
-10°C –+50°C (No freezing. Derating is required
if the temperature exceeds 40°C.)
When the actual ambient temperature of the drive
exceeds 40°C, derate the rated output current by
1% for every increase of 1°C. Do not use the drive
when the ambient temperature exceeds 50°C.
Note: When the drive is built in a cabinet, the
ambient temperature is the temperature of air in
the cabinet.
Storage
temperature
-30°C –+60°C (No freezing)
Relative
humidity
(RH)
Working/storage RH ≤ 90% (no condensation)
Air
Indoor (no sunlight, corrosive gas, combustible
gas, oil mist, or dust)
Altitude
Below 3000m (Derating is needed when the
altitude exceeds 1000m. Derate by 1% for every
increase of 100m.)
Ingress protection (IP)
rating
IP20
Cooling method
Air cooling
Digital
signal
Input
Six inputs. For details, see section 4.7 Input and
output signal wiring.
Output
Three outputs. For details, see section 4.7 Input
and output signal wiring.
Analog
signal
Input
Two (AI1, AI2) 12-bit D/A inputs, 0–10V; one (AI3)
12-bit D/A input, 0–10V/0–20mA
Output
Two outputs, 10-bit D/A, 0–10V/0–20mA
Power
supply
Output
Used to externally provide 15V reference power
supply. Max. output current: 50mA
Used to externally provide 24V reference power
supply. Max. output current: 100mA
Communication function
Four types of filed bus available:
(Standard) Modbus
(Optional) EtherCAT, CANopen, and PROFINET
LED panel and keypad
Five-digit display, with eight function keys