INVT MH860 Series User manual

MH860 series hydraulic servo drive Preface
i
Preface
Thank you for choosing MH860 series hydraulic servo drive developed by INVT Industrial
Technology Co., Ltd. If not otherwise specialized, the drive indicates MH860 series hydraulic
servo drive in the manual.
Designed for hydraulic equipment such as injection molding machine, die-casting machine,
and hydraulic press, the 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. Please download the latest
software and electronic document versions from our website www.invt-tech.com.
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.

MH860 series hydraulic servo drive Contents
ii
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...............................................................................................6
2.6 Dimensions of drive ...........................................................................................................7
2.6.1 Dimensions of air-cooled drive.................................................................................7
2.6.2 Dimensions of liquid-cooled drive.............................................................................9
2.7 Motor nameplate..............................................................................................................10
2.8 Motor model description...................................................................................................10
2.9 Motor specifications.........................................................................................................11
2.10 Motor installation dimensions.........................................................................................12
3 Mechanical installation............................................................................................................13
3.1 Installation environment...................................................................................................13
3.2 Installing the drive............................................................................................................13
3.3 Disassembling/assembling the junction box of drive.........................................................14
3.4 Installing the motor ..........................................................................................................15
4 Electrical connection...............................................................................................................17
4.1 Wiring precautions...........................................................................................................17
4.2 Switch, contactor, and cable selection..............................................................................18
4.3 Terminal layout.................................................................................................................19
4.4 Standard wiring................................................................................................................20
4.5 Jumper function...............................................................................................................21
4.6 Wiring of main circuit........................................................................................................22
4.6.1 Main circuit terminals .............................................................................................22
4.6.2 Resolver signal connectors (CN2Aand CN2B).......................................................24
4.6.3 Motor power cable and temperature measuring resistor terminals ..........................24
4.6.4 Motor resolver connection cable and terminals.......................................................25
4.6.5 Typical wiring examples of main circuit...................................................................26
4.6.6 Wiring procedure for main circuit terminal CN6.......................................................27
4.7 Input and output signal wiring...........................................................................................27
4.7.1 Input and output signal connector (CN5) ................................................................27
4.7.2 I/O output signal connector (CN1A)........................................................................29
4.7.3 Typical control signal wiring examples....................................................................30
4.8 CAN/RS485 connector terminal (CN3).............................................................................30

MH860 series hydraulic servo drive Contents
iii
4.9 CAN connector terminal (CN7).........................................................................................31
4.10 Serial communication signal connector (CN1B)..............................................................31
4.11 Interface circuit...............................................................................................................31
4.11.1 Analog input circuit interface.................................................................................31
4.11.2 Digital input circuit interface..................................................................................32
4.11.3 Digital output circuit interface................................................................................32
4.12 Expansion card..............................................................................................................34
4.12.1 CAN communication card.....................................................................................34
4.12.2 EtherCAT communication card.............................................................................34
4.12.3 PROFINET communication card...........................................................................35
5 Operating through the LED panel...........................................................................................36
5.1 LED panel description......................................................................................................36
5.1.1 LED status place....................................................................................................38
5.2 LED panel functions.........................................................................................................38
5.2.1 Keypad operation mode.........................................................................................38
5.2.2 Shortcut mode .......................................................................................................39
5.2.3 Quick setup mode..................................................................................................39
5.2.4 Monitoring mode....................................................................................................45
5.2.5 Setup mode...........................................................................................................47
5.2.6 Debug mode..........................................................................................................66
5.2.7 Multi-pump mode...................................................................................................68
6 Commissioning........................................................................................................................71
6.1 Commissioning flowchart .................................................................................................71
6.2 Commissioning procedure ...............................................................................................71
6.2.1 Preparing...............................................................................................................71
6.2.2 Motor model selection............................................................................................71
6.2.3 Pump model selection............................................................................................71
6.2.4 Motor parameter autotuning and motor initial angle measuring...............................72
6.2.5 Low-speed jogging.................................................................................................73
6.2.6 Pressure and flow calibration .................................................................................75
6.2.7 Pressure retaining test...........................................................................................76
6.2.8 Calibration review..................................................................................................77
6.2.9 Fully automatic run and system performance adjustment........................................77
7 Multi-pump combined flow control.........................................................................................80
7.1 Flow distribution method for multi-pump flow combining...................................................80
7.2 Multiple pumps ................................................................................................................81
7.3 Hybrid..............................................................................................................................82
7.4 Multiple modes ................................................................................................................83
7.5 Communication with two models......................................................................................84
7.6 Communication with four models .....................................................................................85
8 Troubleshooting ......................................................................................................................90
8.1 Display list for protection..................................................................................................90
8.2 Fault handling flowcharts .................................................................................................94

MH860 series hydraulic servo drive Contents
iv
8.3 Common faults and solutions.........................................................................................109
9 Maintenance and inspection................................................................................................. 111
9.1 Precautions ....................................................................................................................111
9.2 Check item .....................................................................................................................111
9.3 Main circuit insulation test...............................................................................................111
9.4 Replacement of wearing parts........................................................................................112
9.4.1 Service life........................................................................................................... 112
9.4.2 Replacement .......................................................................................................112
10 Accessories .........................................................................................................................113
10.1 Accessory model list ....................................................................................................113
10.2 Noise filter model selection .......................................................................................... 113
10.3 Braking resistor model selection and installation...........................................................115
10.4 Pressure sensor model selection .................................................................................119

MH860 series hydraulic servo drive Safety precautions
1
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".
Danger: Point out potentially dangerous situations that may result in serious personal
injury or death if not operated as required.
Warning: Point out potentially dangerous situations that may result in serious personal
injury or death if not operated as required.
Note: Point out potentially dangerous situations that may result in moderate personal injury if
not operated as required.
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.
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

MH860 series hydraulic servo drive Safety precautions
2
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 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.

MH860 series hydraulic servo drive Product overview
3
2 Product overview
2.1 Product confirmation
Check the following after receiving the product.
Item
Remarks
Whether the product you have received is
consistent with the purchased model.
Check according to the models on the motor and
drive nameplates.
Whether the motor rotating shaft runs
properly.
The motor is proper if the shaft rotates by hand.
Whether there is damage.
View the entire exterior and check for any
damage caused during delivery.
Whether 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
伺服驱动器
SERVO DRIVES
型号：
MODEL:
输入
INPUT
输出
OUTPUT
上海英威腾工业技术有限公司
INVT industrial technology(Shanghai ) Co., Ltd
MH860-T025SF7
S/N:
AC 3PH 380V(-15%)~440V(+10%) 47Hz~63Hz
AC 3PH 0V~Vin 0Hz~400Hz 25A 11kW
2.3 Drive model description
MH860
-T
025
S
F
7
0000
Hydraulic
product
series
Voltage
class
T: 380V
Current class
018: 18.5A
025: 25A
032: 32A
038: 38A
043: 43A
060: 60A
070: 70A
092: 92A
115: 115A
150: 150A
170: 170A
180: 180A
215: 215A
Communication
method
S: Standard
C: CAN
N: EtherCAT
F: PROFINET
B: PROFIBUS
Air cooling
type
F: Air
cooling
Y: Liquid
cooling
Encoder
type
7: Rosolver
Management
number
0000: Not
distinguished
Basic model information
(Software display)

MH860 series hydraulic servo drive Product overview
4
2.4 Drive specifications
Drive model
MH860-T
018SF7
025SF7
032SF7
038SF7
043SF7
Applicable motor
capacity (kW)
7.5
11
15
18.5
22
Rated output
current (Arms)
18.4
25
32
38
43
Overload (Lasts
5min)
26
35
45
49
64
Max. output
current [Arms]
(Lasts 30s)
31
39
53
58
70
Rated input
current (Arms)
25
32
40
47
53
Input power
AC380V(-15%)–440V(+10%) 47Hz–63Hz
Weight
6.5Kg
7.0kg
9kg
9.5kg
9.5kg
Recommended
regenerative
braking resistor
specifications
68Ω 500W
40Ω 500W
20Ω 500W
Min. braking
resistance
47 Ω
31 Ω
23Ω
19 Ω
15Ω
Drive model
MH860-T
060SF7
070SF7
092SF7
115SF7
150SF7
Applicable motor
capacity (kW)
30
37
45
55
75
Rated output
current (Arms)
60
70
92
115
150
Overload (Lasts
5min)
85
91
129
162
201
Max. output
current [Arms]
(Lasts 30s)
106
124
163
226
297
Rated input
current (Arms)
70
76
94
128
160
Input power
AC380V(-15%)–440V(+10%) 47Hz–63Hz
Weight
11.5Kg
11.5kg
30kg
32kg
51kg
Recommended
regenerative
braking resistor
specifications
20Ω 500W
10Ω 2000W
Two 10Ω 2000W
resistors in parallel
connection
Min. braking
resistance
15 Ω
6.4 Ω
4.4 Ω

MH860 series hydraulic servo drive Product overview
5
Drive model
MH860-T
180SF7
215SF7
Applicable motor
capacity
(kW)
90
110
Rated output
current (Arms)
180
215
Overload (Lasts
5min)
234
303
Max. output
current [Arms]
(Lasts 30s)
332
339
Rated input
current (Arms)
170
225
Input power
AC380V(-15%)–440V(+10%) 47Hz–63Hz
Weight
52Kg
67Kg
Recommended
regenerative
braking resistor
specifications
Two 10Ω 2000W resistors
connected in parallel
Two 30Ω 2000W resistors connected
in parallel, requiring the braking unit
DBU100H-060-4
Min. braking
resistance
4.4Ω
/
Drive model
MH860-T
060SY7
092SY7
115SY7
150SY7
170SY7
Applicable motor
capacity (kW)
30
45
55
75
90
Rated output
current (Arms)
60
92
115
150
170
Overload (Lasts
5min)
84
129
162
201
234
Max. output
current [Arms]
(Lasts 30s)
106
163
226
297
332
Rated input
current (Arms)
70
94
128
160
170
Input power
AC380V(-15%)–440V(+10%) 47Hz–63Hz
Weight
16.5Kg
36.2kg
36.2kg
37.1kg
37.1kg
Recommended
regenerative
braking resistor
specifications
20Ω
500W
10Ω 2000W
Two 10Ω 2000W resistors
connected in parallel
Min. braking
resistance
15Ω
6.4 Ω
4.4 Ω

MH860 series hydraulic servo drive Product overview
6
2.5 Drive technical performance
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: 4096pluse/rev
Environment
Working
temperature
-10°C –+50°C (No freezing. Derating is required
if the temperature exceeds 40°C.)
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
(1) Air cooling. (2) Liquid cooling
Digital signal
Input
Six inputs. For details, see section 4.7.
Output
Four outputs. For details, see section 4.7.
Analog signal
Input
Three inputs, 12-bitA/D, 0–10V
Output
Two outputs, 10-bit D/A, 0–10V (internal
parameter output can be set through the LED
panel or external HMI)
Power supply
Output
Used to externally provide 15V reference power
supply. Max. output current: 50mA
Communication
Function
Four types of filed bus available:
(Standard) Modbus
(Optional) EtherCAT, CANopen, and PROFINET
LED panel and keypad
Six-digit display, with four function keys
External HMI
The external HMI communicates with the drive
through the RS485 interface to set parameters,
copy parameters, and so on.
Control
function
performance
Process control
Supported input: analog input, internal input,
communication input, RS485 continuous input,
CANopen input, EtherCAT input, and
PROFINET input
Speed control
Supported control methods: CAN
communication, RS485 communication,
CANopen input, and EtherCAT input
Multi-pump parallel control
Able to control 16 pumps in five working modes
(multi-pump, hybrid, multi-mode, communication
with two models, and communication with four
models)

MH860 series hydraulic servo drive Product overview
7
Pressure control accuracy
±1bar
Flow control accuracy
±0.5%FS
Speed control accuracy
±0.5%
Pressure control stepped
response
≤100ms
Speed stepped response
≤50ms
Flow calibration function
Able to calibrate pressure for output flow
according to various pump characteristics
Torque response time
≤2ms
Protection
Hardware
Protection against overcurrent, DC overvoltage,
DC undervoltage, braking resistor damage,
module overtemperature, pressure sensor fault,
FWD/REV overspeed, and brake overload, and
so on
Software
Protection against software faults, task re-entry
and so on
Alarm record memory
Able to store five alarm records
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.
2.6 Dimensions of drive
2.6.1 Dimensions of air-cooled drive
H
B
DA W
Figure 2-1 Dimensions of MH860-T018SF7–T070SF7

MH860 series hydraulic servo drive Product overview
8
H B
W D A
Figure 2-2 Dimensions of MH860-T092SF7–T215SF7
Dimensions of drive:
Model
Outline dimensions
Installation
dimensions
Hole diameter
(mm)
H1
(mm)
W
(mm)
D
(mm)
A
(mm)
B
(mm)
MH860-T018SF7
332
170
208
151
303.5
M5(φ6)
MH860-T025SF7
MH860-T032SF7
342
230
208
210
311
M5(φ6)
MH860-T038SF7
MH860-T043SF7
MH860-T060SF7
407
255
245
237
384
M6(φ7)
MH860-T070SF7
MH860-T092SF7
555
270
325
130
540
M6(φ7)
MH860-T115SF7
MH860-T150SF7
554
338
329
200
535
M8(φ9.5)
MH860-T180SF7
MH860-T215SF7
680
325
365
200
661
M8(φ9.5)

MH860 series hydraulic servo drive Product overview
9
2.6.2 Dimensions of liquid-cooled drive
14 - Φ7
G1/4 female thread
hole depth:20m m
30 16
55180 155
182
120
100
120 120
100
304
280
320
430
76
414
394,5
265
29,5
Figure 2-3 MH860-T060SY7
16
31
80
35322225
545
310
116
420
116116
100 100 100100
380
116116
G1/2 female thread
hole depth:20mm 27555
600
18- Φ7
Figure 2-4 MH860-T092SY7/MH860-T115SY7/MH860-T150SY7/MH860-T170SY7

MH860 series hydraulic servo drive Product overview
10
2.7 Motor nameplate
MODEL: SV-IH20-011C-4-7A0-1M10
INPUT: AC 3PH 380V 29A
OUTPUT(RATED): 11kW 1800r/min 59N.m
IP54 S1 CLASS F NO.1504007(5200)
G.W: APPR. 77Kg
S/N: MADE IN CHINA
INVT INDUSTRIAL TECHNOLOGY CO.,LTD.
2.8 Motor model description
SV - I H 20 - 011 C - 4 - 7 A 0 - 1 M10
121110987654321
Field
ID
Description
Naming example
Product
category
1
Product
category
SV: Servo system
Product
series
2
Product series
M: M series (common)
I: I series (built-in), IPM air cooled
3
Inertial class
M: General-purpose servo motor with medium
inertia
H: General-purpose servo motor with high inertia
4
Base model no.
18: 180mm; 20: 200mm; 26: 263mm
Power range
+ Load
type/rotation
speed
5
Rated power
(1) For the model < 9.9kW
1R0: 1.0kW
(2) For the 10kW and higher
015: 15kW
6
Rated rotation
speed
B: 1500rpm
C: 1800rpm
E: 2000rpm
Voltage class
7
Voltage class
4–380VAC
Configuration
information
8
Encoder type
7–12 bit retoary transformer
9
Shaft end
connection
(Standard) Solid with threaded hole and key
Solid plain shaft
10
Optional part
With oil seal but no brake
Without oil seal or brake
Management
number
11
Supplier ID
1
12
Product
management ID
000: Standard nameplate without a bracket
M10: Non-standard nameplate with a bracket
M16: Standard nameplate with a bracket

MH860 series hydraulic servo drive Product overview
11
2.9 Motor specifications
Model
Rated
speed
(rpm)
Rated
output
power
in S1
(kW)
Rated
torque
(Nm)
Rated
current
(A)
(rms)
Max.
torque at
rated
rotation
speed
(Nm)
Max. current
at rated
rotation
speed
(Arms)
Max.
speed
(rpm)
Back-
EMF
(Vrms/
krpm)
Torque
(Nm/A)
Rotor
inertia
(Kg*cm2)
SV-IH20-011C-4-7A0-1
1800
11
59
29
106
56.6
2500
135
1.89
86.3
SV-IH20-013C-4-7A0-1
1800
13
72
30
122
63.6
2500
141
2.06
101.2
SV-IH20-016E-4-7A0-1
2000
16
77
34
127
76.4
2500
127.5
1.85
98.5
SV-IH20-018C-4_7A0-1
1800
18
95
34.6
159
69.3
2500
165
2.34
144
SV-IH20-022E-4-7A0-1
2000
22
105
45.5
185
91.3
2500
134
1.88
159
SV-IH20-025C-4-7A0-1
1800
25
133
55
239
140
2500
152
1.91
182
SV-IH20-030E-4-7A0-1
2000
30
144
60
233
120.9
2500
146
2.40
201
SV-IH26-035E-4-7A0-1
2000
35
167
71.5
240
115
2500
157
2.13
345
SV-IH26-037C-4-7A0-1
1800
37
195
72
333
142.8
2500
164.5
2.18
370
SV-IH26-041E-4-7A0-1
2000
41
195
84.8
313
163.2
2500
153
2.29
370
SV-IH26-043C-4-7A0-1
1800
43
230
91
385
181
2500
152
2.12
426
SV-IH26-048E-4-7A0-1
2000
48
230
104
349
192.4
2500
137
1.96
426
SV-IH26-056E-4-7A0-1
2000
56
270
115
411
203.7
2500
158
2.27
523
SV-IH26-064E-4-7A0-1
2000
64
306
127
508
248.9
2500
148
2.33
606
Pole pairs
4
Voltage class (V)
380
Insulation class
F
Pressure resistance
class
AC1800V, one minute
Insulation resistance
DC1000V, > 50MΩ
IP rating
Fully enclosed and self-cooled, IP54 (except the through part of shaft)
Seismic performance
Able to pass the vibration test under conditions in the classes 1 and 2 (in table 6 in section 4.26) in
GB/T 7345-94
Storage temperature
-25°C –+60°C (No freezing)
Running environment
temperature
-20°C –+40°C (Derating is required if the temperature exceeds 40°C.)
Running environment
humidity
20%–95% (No condensation)
Exciting method
Permanent magnetic
Installation method
IMB5
Position detection
Resolver: one pole

MH860 series hydraulic servo drive Product overview
12
2.10 Motor installation dimensions
For base-200 motors:
5
82 L
180
+0 -0.025
70
37
12
+0
-0.043
8
M10 hole depth:30mm
246
12
200
221
215
254
278
312
122.5
13
S
40 40
4- 13.5
36.5
42
+0
-0.016
3
Remarks: If you need a supporting foot for installation,
note the requirement in the ordering since no supporting
foot is provided by default.
The data in the drawing is only for installation reference.
For base-263 motors:
385
263
292
300
110
90
4
L
250+0.01 6
-0.01 3
14+0
-0.04 3
9
42.8
M20 hole depth:35mm
Remarks: If you need a supporting foot for installation,
note the requirement in the ordering since no supporting
foot is provided by default.
The data in the drawing is only for installation reference.
S
356
384
14
18
160
4- 19
320
50
50 50
3
88
3
48+0
-0.01 6
Model
S
L
SV-IH20-011C-4-7A0
190
376
SV-IH20-013C-4-7A0/SV-IH20-016E-4-7A0/
SV-IH20-018C-4-7A0
230
411
/SV-IH20-022E-4-7A0
300
481
SV-IH20-025C-4-7A0
340
551
SV-IH20-030E-4-7A0
415
586
SV-IH26-035E-4-7A0
255
492
SV-IH26-037C-4-7A0/SV-IH26-041E-4-7A0
300
537
SV-IH26-043C-4-7A0/SV-IH26-048E-4-7A0
370
577
SV-IH26 -056E-4-7A0
400
617
SV-IH26 -064E-4-7A0
440
657

MH860 series hydraulic servo drive Mechanical installation
13
3 Mechanical installation
3.1 Installation environment
To ensure proper performance and long operating life, install the drive in the following
recommended environment, which also ensures that the drive is protected from damage.
Note
1. Prevent from direct sunshine, direct outdoor use not recommended.
2. Do not use in an environment with corrective gas or liquid.
3. Do not use in an environment with oil mist or splash.
4. Do not use in an environment with salt mist.
5. Do not use in a wet or humid environment.
6. Configure a filtering device when there is metal powder or silk spinning
fiber fluttering in the air.
7. Do not use under mechanical shock or vibration.
8. Take temperature lowering measures when the ambient temperature
exceeds 50°C.
9. Overcooling and overheating may cause equipment failure. The
recommended temperature range is -10°C –+40°C.
10. Keep away from the power supply noise. For example, welding machines,
high-powered electrical equipment will affect the use of the product.
11. Radioactive materials can affect the use.
12. Keep away from flammable items, diluent agents, and solvents.
3.2 Installing the drive
1. As shown in the figure, it is recommended to install the drive vertically, and leave
sufficient ventilation space and plugging space (more than 200mm) above and below the
drive for heat dissipation and operation.
2. Use natural air convection or a fan to cool the drive.
3. Fix the drive firmly to the mounting surface through the four mounting holes.
4. When installing multiple drives in a cabinet:
a) Keep the front side (with the LED panel) of the drive facing you.
b) To ensure that cooling can be carried out through a fan as well as natural air
convection, pay attention to the installation position of the ventilation fan inside the
cabinet. If the fan is not installed in a proper position, the ambient temperature may
rise, which will affect the cooling effect of drive.
c) When installing the drives side by side, leave more than 50mm on each horizontal
end and more than 200mm on each vertical end. In addition, install a cooling fan at
top of drive. To prevent the ambient temperature of certain drives too high, the
temperature inside the control cabinet needs to be kept even.

MH860 series hydraulic servo drive Mechanical installation
14
> 200mm
> 200mm
Figure 3-1 Drive installation diagram
In cabinet
Cooling air
(Correct installation method) (Incorrect installation method)
In cabinet
Cooling air
Ventilation fan Ventilation fan
Figure 3-2 Ventilation fan installation position
3.3 Disassembling/assembling the junction box of drive
To disassemble the junction box of drive (for example, MH860-T038SF7), do as follows:
1. Loosen and remove the two fastening screws of the junction box.
2. Pull the junction box outward and take it out.

MH860 series hydraulic servo drive Mechanical installation
15
Loosen the screw
Press the snap and gently lift the cover
To assemble the junction box of drive (for example, MH860-T038SF7), do as follows:
1. Put the junction box horizontally into the convex groove, and push the box so that the
junction box and the housing slit overlap.
2. Fasten the two fastening screws of the junction box.
3.4 Installing the motor
To ensure safe and stable running of motor, install the motor according to the following
instructions.
Note
1. Install the motor in the horizontal or vertical direction.
2. When connecting to machinery, it is recommended to use a coupling and
keep the axis of motor in a straight line with the axis of machinery. If the
concentricity is insufficient, vibration may occur, which will cause
damage to shaft bearing or encoder.
3. The motor has positioning requirements for the installation of feedback
elements (such as optical encoder and resolver). To be specific, the
feedback elements are required to have a fixed relative position with the
rotor and stator of motor, which disallows disassembly or swapping
unless authorized.
4. Do not apply tension to cables. Especially the signal cable core is very
thin. Do not stretch it too tightly when wiring.
5. Prevent the shaft bearing from direct impact. Otherwise, the precision
parts on the shaft may be damaged (resolver) or the accuracy may be
degraded.