GSK ZJY Series User manual

In this manual, we have tried as much as possible to describe all
the various matters about the spindle servo motor. However, we can
not describe all the matters which must not be done or which can not
be done because there are so many possibilities. Therefore, matters
which are not especially described in this manual should be regarded
as “impossible” or “forbidden”.
The copyright of the user manual is owned by GSK CNC
Equipment Co., Ltd (Hereinafter referred to as GSK).It is against the
law for any organization or individual to reproduce this manual in any
form without the permission of GSK and GSK reserves the right to
investigate its law duty.

GSKZJY Series Spindle Servo Motor
II
PREFACE
Dear user:
It’s our honor that you select GSK ZJY serial spindle servo motor
(Hereinafter referred to as motor).
For safety of the motor and the product and for the normal and effective
running, please read the manual carefully before installing and using the
product.

GSKZJY Series Spindle Servo Motor
III
SAFETY PRECAUTION
The incorrect connection and operation may cause the accident, so
before using and operating the motor, please read the manual
carefully!
1. The motor is installed with the photoelectric encoder, and it’s not allowed to hit the
motor. And the user can’t disassemble the photoelectric encoder by himself; otherwise,
once the encoder is damaged, it may cause the motor out of running!
2. In the normal climate, measure the insulation resistance, which the motor winding is
against with the cabinet, by 1000V megameter, and the value should NOT be less than 20
MΩ.
3. The motor and the drive unit should be connected correctly based on the manual to
guarantee the protective grounding stable and reliable.
4. The motor can run with load only after the motor is free of noise and vibration during
running from zero speed to the maximum speed in the dry run state.
5. During the motor running, it’s not allowed to touch the motor shaft and cabinet.
6. Only the qualified person can adjust and maintain the motor.
7. It is forbidden to move the motor by dragging the wire (cable), the motor shaft or the
encoder.
8. GSK does NOT take any responsibility for any change on the product by the user, and
the warranty bill becomes invalid.
All specifications and designs are subject to change without notice.

GSKZJY Series Spindle Servo Motor
IV
RESPONSIBILITY
Responsibility of the manufacturer
——The manufacturer should be in charge of the design and the structure of the motor
and its accessories.
——The manufacturer should be responsible for the safety of the motor and its
accessories.
——The manufacturer should be in charge of the provided information and suggestion
for the user.
Responsibility of the end user
——The user should be very familiar with the safety operation through learning the
motor safety operation or participating in the training session.
——The user should be responsible for the safety after adding, changing or modifying
the original motor and its accessories by himself.
——The user should be in charge of the danger resulted from the operation, adjusting,
maintenance, installation and storage which are not complied with the manual regulation.
The manual is kept by the end user.
Thank you for your friendly support during using GSK product.

GSKZJY Series Spindle Servo Motor
V
CONTENT
PREFACE ................................................................................................................II
SAFETY PRECAUTION...................................................................................... III
RESPONSIBILITY.................................................................................................IV
ⅠPRODUCT CHARACTERISTICS.....................................................................1
ⅡRUNNING CONDITIONS.................................................................................1
ⅢMODELS of the MACHINE.............................................................................1
ⅣMAIN TECHNICAL PARAMETERS and OVERALL DIMENSION of the
MOTOR......................................................................................................................2
ⅤMECHANICAL CHARACTERISTICS CURVE of the MOTOR.................8
ⅥCONNECTION and INSTALLATION of the MOTOR.................................9
ⅦSTORAGE of the MOTOR ............................................................................11
ⅧTRANSPORTATION of the MOTOR ...........................................................11
ⅨWARRANTY.....................................................................................................11

GSKZJY Series Spindle Servo Motor
1
Ⅰ PRODUCT CHARACTERISTICS
GSK ZJY spindle servo motor is a new type of three phase
inductive motor with high performance and adopts insulation
structure of F level, corona resistance enameled wire dedicated
for the frequency conversion motor and the encoder with high
speed and precision, and the motor is researched, developed
and manufactured by GSK. The product is with the
characteristics of the compact structure, high rotation precision,
low noise, high reliability and high capability with low cost, etc.
ⅡRUNNING CONDITIONS
2.1 The height above sea level should NOT exceed 1000m.
2.2 The environment temperature should be in the range of -10℃~ +40℃.
2.3 The relative air humidity is ≤90% (without the condensation).
2.4 AC voltage value of steady state is :（0.9 ~1.1）multiplies AC rated voltage value.
ⅢMODELS of the MACHINE
Example: ZJY208A-5.5BH-B3A2LY1-H
ZJY 208 A - 5.5 B H - B3 A2 L Y1 (**) - H
（1）（2）（3）（4）（5）（6）（7）（8）（9）（10）（11）（12）
SR.NO MEANING
⑴The spindle servo motor
⑵Motor width（182, 208, 265）
⑶Design sequence number（None: Original A，B，C……：design sequence number）
⑷Rated power (Unit:kW)
⑸Rated speed:（W:750 r/min, A:1000 r/min, B:1500 r/min, E:3000 r/min）
⑹Max. speed（H: high speed 10000 r/min, M: medium speed:7000 r/min, L：low speed:
4500 r/min）
⑺Structure installation type:（B5 flange installation, B3 footing installation,
B35 flange footing installation）
⑻Encoder type（None: Incremental 1024 p/r, A: Incremental 2500p/r, A1: Incremental 4096
p/r, A2: Incremental 5000 p/r, A4: Absolute 17 bit, A8: Absolute 19 bit）
⑼Position of the terminal box（None: The outlet box is on the top; R: The outlet box is on
the right looking from the shaft end; L: The outlet box is on the left.）
⑽Shaft end (None: Optic axis, Y1: with the standard key slot)
⑾Customer special order number are bracketed in two capitals.
⑿Power supply voltage (none: three phase 380V, H: three phase 440V)

GSKZJY Series Spindle Servo Motor
2
ⅣMAIN TECHNICAL PARAMETERS and OVERALL DIMENSION of
the MOTOR
4.1 Refer to list 1 about the main technical parameters and overall dimension of the
motor.
List 1 The main technical parameters and overall dimension of the motor
SPEC.
ITEM
ZJY208-2.2AM ZJY208-3.7AM ZJY208-5.5AM ZJY265-7.5AM ZJY265-11AM ZJY265-15AM ZJY182-1.5BH ZJY182-2.2BH ZJY182-3.7BH
Rated power
（kW）
2.2 3.7 5.5 7.5 11 15 1.5 2.2 3.7
Drive unit
power
supply
（ V ）
Three phase AC 380 50/60Hz
Rated
current（A） 6.7 10.2 15.5 21 31 48.3 7.3 7.5 15.5
Rated
frequency
（Hz）
33.3 33.3 33.3 33.3 33.3 33.3 50 50 50
Rated torque
（N·m） 21 35 53 72 105 143 9.5 14 24
30min power
（kW） 3.7 5.5 5.5 11 15 18.5 2.2 3.7 5.5
30min
current（A） 9.8 13.8 19.6 28 39 56 9.3 11 19.6
30min torque
（N·m）35 53 72
105 143 177 14 24 35
Rated speed
（ r/min ）
1000 1000 1000 1000 1000 1000 1500 1500 1500
Constant power
range
（ r/min ）
1000～4000 1500～6000
Max. speed
（ r/min ）
M:7000 H:10000
Rotation
inertia
（ kg·m
2
）
0.0168 0.0238 0.0309 0.0413 0.0826 0.086 0.0056 0.0074 0.0115
Weight（kg）51 66 77 51 125 143 27 32 43
Installation
type IM B5 or B3 IM B35
Protection
level IP54（GB/T 4942.1-2006）
Insulation
level F（GB 755-2008）
Vibration
level B（GB 10068-2008）
Inner
encoder Incremental 1024 p/r
Cooling fan
power supply
Three phase AC 380V 50Hz
40W 0.14A
Three phase AC 380V 50Hz
70W 0.21A
Three phase AC 380V 50Hz
30W 0.08A

GSKZJY Series Spindle Servo Motor
3
SPEC.
ITEM
ZJY208-2.2AM ZJY208-3.7AM ZJY208-5.5AM ZJY265-7.5AM ZJY265-11AM ZJY265-15AM ZJY182-1.5BH ZJY182-2.2BH ZJY182-3.7BH
A 208 208 208 265 265 265 182 182 182
B 104 104 104 132 132 132
C 188 188 188 216 216 216 126 126 126
D 215 215 215 265 265 265 185 185 185
E 60 80 80 110 110 110 60 60 60
F 413 468 523 443 533 578 324 351 406
G 237 292 347 260 350 395 198 225 280
H 180h7 180h7 180h7 230h7 230h7 230h7 150h7 150h7 150h7
I 15 15 15 15 15 15 12 12 12
J 28h6 38h6 38h6 48h6 48h6 48h6 28h6 28h6 28h6
K 272 272 272 300 300 300 184 184 184
L 106 106 106 135 135 135 93 93 93
N 180 180 180 230 230 230 156 156 156
P 40 40 40 40 40 40 32 32 32
Q 210 265 320 225 315 355 132 159 214
S 60 80 80 110 110 110 60 60 60
T 5 5 5 5 5 5 4 4 4
Overall
dimens
ion
(Refer
to the
figure)
Z 12 12 12 15 15 15 12 12 12
List 1 (Continued) The main technical parameters and overall dimension of the motor
SPEC
ITEM
ZJY208-3.7B ZJY208-5.5B ZJY208-7.5B ZJY265-7.5BM ZJY265-11BM ZJY265-15BM ZJY265-18.5B
M
ZJY265-22BM
Rated power
（kW）3.7 5.5 7.5 7.5 11 15 18.5 22
Drive unit
power supply
（ V ）
Three phase AC 380 50/60Hz
Rated
current（A）8.9 13.7 18.4 18 26 35 48.7 58
Rated
frequency
（Hz）
50 50 50 50 50 50 50 50
Rated torque
（N·m）24 35 48 49 72 98
118 140
30min power
（kW）5.5 7.5 11 11 15 18.5
22 30
30min
current（A）13 18 25 26 34 42
54.7 73
30min
torque（N·m）35 48 70 74 100 123
140 191
Rated speed
（ r/min ）
1500 1500 1500 1500 1500 1500 1500 1500
Constant power
range
（ r/min ）
1500～5000
Max. speed
（ r/min ）
M:7000、H:10000 M:7000
Rotation
inertia （ kg·m
2
）
0.0168 0.0238 0.0309 0.0413 0.0744 0.0826 0.086 0.102
Weight（kg）51 66 77 89 107 125 143 162
Installation
type IM B5 or B3
Protection
level IP54（GB/T 4942.1-2006）
Insulation
level F（GB 755-2008）
Vibration
level B（GB 10068-2008）
Inner
encoder Incremental 1024 p/r

GSKZJY Series Spindle Servo Motor
4
SPEC
ITEM
ZJY208-3.7B ZJY208-5.5B ZJY208-7.5B ZJY265-7.5BM ZJY265-11BM ZJY265-15BM
ZJY265-18.5B
M
ZJY265-22BM
Cooling fan
power supply
Three phase AC 380V
50Hz 40W 0.14A Three phase AC 380V 50Hz 70W 0.21A
A 208 208 208 265 265 265 265 265
B 104 104 104 132 132 132 132 132
C 188 188 188 216 216 216 216 216
D 215 215 215 265 265 265 265 265
E 60 80 80 110 110 110 110 110
F 413 468 523 443 488 533 578 633
G 237 292 347 260 305 350 395 450
H 180h7 180h7 180h7 230h7 230h7 230h7 230h7 230h7
I 15 15 15 15 15 15 15 15
J 28h6 38h6 38h6 48h6 48h6 48h6 55h6 55h6
K 272 272 272 300 300 300 300 300
L 106 106 106 135 135 135 135 135
N 180 180 180 230 230 230 230 230
P 40 40 40 40 40 40 40 40
Q 210 265 320 225 270 315 355 410
S 60 80 80 110 110 110 110 110
T 5 5 5 5 5 5 5 5
Overall
dimens
ion
(refer
to the
figure)
Z 12 12 12 15 15 15 15 15

GSKZJY Series Spindle Servo Motor
5
Flange installation type（B5）
Footing installation type（B3）
Flange and footing installation type（B35）
φH
φJ
E F
G
B C
K
45°
A
4-φI
φD
T
S
φJ
E F
G
P Q
L C
K
N
A
4-φZ
S
φJ φH
EF
G
PG4-φZ N
A
4-φI
45°
φD
K
CL

GSKZJY Series Spindle Servo Motor
6
4.2 Dimension of the standard key slot
4.2.1 ZJY182-1.5BH, ZJY182-2.2BH, ZJY182-3.7BH, ZJY208-3.7B and ZJY208-2.2AM
The configuration keys: GB/T 1096 Keys: 8×7×50
About the dimension of the shaft end key slot, refer to the following figure:
4.2.2 ZJY208-5.5B, ZJY208-7.5B, ZJY208-3.7AM and ZJY208-5.5AM
The configuration keys: GB/T 1096 Keys: 10×8×70
About the dimension of the shaft end key slot, refer to the following figure:
4.2.3 ZJY265-7.5BM, ZJY265-11BM, ZJY265-15BM, ZJY265-7.5AM, ZJY265-11AM and
ZJY265-15AM
The configuration keys: GB/T 1096 Keys:14×9×90
About the dimension of the shaft end key slot, refer to the following figure:
0
-0.036
24 0
-0.2 φ28h6 0
-0.013
550
2-R
60
8N9
10N9 0
-0.036
33 0
-0.2 φ38h6 0
-0.01
570
2-R
80
42.5
0
-0.
14N9 0
-0.043
φ48h6 0
-0.01
790
2-R
110

GSKZJY Series Spindle Servo Motor
7
4.2.4 ZJY265-18.5BM and ZJY265-22BM
The configuration keys: GB/T 1096 Keys: 16×10×90
About the dimension of the shaft end key slot, refer to the following figure:
49 0
-0.
16N9 0
-0.043
φ55h6 0
-0.01
790
2-R
110

GSKZJY Series Spindle Servo Motor
8
Ⅴ MECHANICAL CHARACTERISTICS CURVE of the MOTOR
P/PN————Power/rated power；
T/TN————Torque/rated torque；
n————Rated speed.
0%
50%
100%
150%
0 10000
1500 6000
P/P N
T/T
N
n
0%
50%
100%
150%
0 10000
1500 5000
P/P
N
T/T
N
n
ZJY182 series: Rated speed: 1500r/min ZJY208 series: Rated speed: 1500r/min
0%
50%
100%
150%
0 7000
1500 5000
P/PN
T/TN
n
0%
50%
100%
150%
0 7000
1000 4000
P/P
N
T/T N
n
ZJY265 series: Rated speed: 1500r/min ZJY208 & ZJY265: Rated speed: 1000r/min
Figure:
Power of continuous working state； Power of 30min working state;
Torque of continuous working state; Torque of 30min working state.

GSKZJY Series Spindle Servo Motor
9
ⅥCONNECTION and INSTALLATION of the MOTOR
6.1 Connection of the motor and the drive unit
6.1.1 The three phase winding of the motor U, V, W and the cabinet (grounding) are led out by the
cable fixed head, and about the position relation in the terminal box, refer to figure 3. U, V, W
and the cabinet (grounding) are respectively connected with U, V, W and PE terminals of main
return circuit in the drive unit. The air direction of the cooling fan is from one end of the shaft
end to the other end.
ZJY208 & ZJY265 terminal box ZJY182 terminal box
6.1.2 Interface of the encoder
6.1.2.1 The incremental encoder lead of ZJY182 series motor is led out by the plug of 12-core
connector in the terminal box; about its corresponding relation, refer to list 2. The outlet lead
is connected with the plug of the drive unit feedback signal CN2 based on the drive unit
requirement.
List 2
Encoder
lead
Cabinet
(grounding) VCC GND A AB BZ Z
Socket
NO. 1 9 5 6 10 7 11 8 12
6.1.2.2 The incremental encoder lead of ZJY208 and ZJY265 series motor is led out by the plug of
15-core connector; about its corresponding relation, refer to list 3. The outlet lead is
connected with the plug of the drive unit feedback signal CN2 based on the drive unit
requirement.
Socket (the back)
sketch map
U V W
U V W
Motor
connector
Fan
connector
Cable
fixed head
Encoder
socket
Grounding
screw
Cable fixed
head
Motor
connector
Fan
connector
Encoder
socket
Grounding
screw
U V W
U V W

GSKZJY Series Spindle Servo Motor
10
List3
Encoder
lead
Cabinet
(grounding) VCC GND A AB BZ Z
Socket NO. 1 2 3 4 7 5 8 6 9
6.2 Installation of the motor
If the motor should run at the speed above 2000r/min, it’s recommended to use the motor of optic axis
and the pulley is fixed by the expansion sleeve. And the pulley and the expansion sleeve must reach
G1 requirements after the dynamic balancing process; otherwise, the big vibration occurs during
running at high speed.
6.2.1 B5 flange installation mode (or use B35 flange installation mode)
ZJY182 series uses M10×35 bolt or HEX screw. During using the HEX screw, the length of the internal
hexagonal wrench should be more than the total length of the motor and the wrench can be made by
the user. Take down the rubber plug on the fan cover and fasten the screw from the back side, and
then, push the rubber plug. (Refer to figure 4)
Use M12×45 bolt or HEX screw on ZJY208 or ZJY265 series motor.
6.2.2 B3 footing installation mode（Or use B35 footing installation mode）
Firstly remove the covers on the sides of back cover during installation. If it is B35 structure, the rubber
plug should be also taken down from the footing hole (refer to fig. 5). M10 bolt or HEX screw is used
on ZJY182 and ZJY208 series motor, M12 bolt or HEX screw is used on ZJY265 series motor.
Fig.4 Fig.5
After fixing the motor, the covers on the sides of the back cover should be installed; otherwise, the
cooling will get affected due to air leak, which causes the motor malfunction because of overheat.
Socket
(Welding side)
sketch map
521
3
6
Bolt
Rubber plug
Self-made
long
wrench
Rubber
p
lu
g

GSKZJY Series Spindle Servo Motor
11
ⅦSTORAGE of the MOTOR
The motor should be stored in the room of which temperature should be among -40℃~+70℃, and the
relative air humidity of the storeroom should not be more than 95%; Moreover, the storeroom should
be clean, ventilated and free of the corrosive gas.
ⅧTRANSPORTATION of the MOTOR
The motor should be put carefully and avoid hitting and impacting during transportation. And the
corrosion substance, such as the sour and alkali, etc should not be put with the motor.
ⅨWARRANTY
On condition that the motor is transported, stored, installed, debugged and repaired based on the
operation regulations, GSK is responsible for the motor repair freely in one year from the dispatch date
(on the basis of the dispatch voucher) if the motor is damaged or can’t be used normally due to the
quality.
Remark 1: The listed motor modals in the manual are recommended by GSK, which can be used in
many situations. If the user has some new requirements, GSK can provide the motor of the other
specifications based on your requirements.
Remark 2: The basic shaft end of the motor manufactured by GSK is the cylinder shape without the
key slot type. GSK can provide the motor with different shaft end types (remark during order), like the
cylinder shape with the key slot shaft end (refer to GB/ T 756—2010), based on your requirements.
Remark 3: Because the spindle motor speed is very high, the rotary parts should reach the
corresponding dynamic balance requirement; otherwise, it causes the big vibration and noise, even
the motor and equipment get damaged. When the rotor of the spindle motor is dispatched from the
factory, its dynamic balance precision is G0.4 when the speed is 6000r/min. The user should pay
attention to the following points:
It’s recommended to use the spindle motor with the optic axis;
The pulley must adopt the dynamic balance processing, and its precision should reach G1 or
higher one (the amount of unbalance in one side should be less than 50mg.) when the speed is
6000r/min. Moreover, the weight of fixed screws should be same. Compared with the concentricity of
the shaft, the installed clamping ring should NOT be more than 0.1mm;
If the user has to adopt the key connection method, the pivot axis of dynamic balance should
be made based on the spindle motor shaft end and the key dimension and material, and the pivot axis
is for the pulley dynamic balance, and the dynamic balance precision is same as above. The pulley
can be press mounted through the screw on the bolt hole at the motor shaft end, or the pulley is
shrinkage installed, but it’s not allowed to hit the pulley.
If the required dynamic balance equipment isn’t available for the user temporarily , the user
can entrust GSK with the pulley balance processing and installation.

GSKZJY Series Spindle Servo Motor
12