Sanyo Denki Py 2 Manual

							 
0.  SAFETY PRECAUTIONS 
0－2 
 0.1 Introduction  
The “PY2” Servo Amplifier is designed to be used for general industrial equipment.    So, note the following 
precautions. 
•  To ensure proper operation, thoroughly read the Instruction Manual before installation, wiring and 
operation. 
•  Do not modify the product. 
•  For installation or maintenance, consult our dealer or authorized agency. 
•  When using the product for the following purposes, special measures, such as system multiplication or 
emergency power generator installation, should be taken regarding operation, maintenance and 
management of the product.    In this case, consult us. 
①  Use in medical equipment affecting peoples lives. 
②  Use in equipment that may be lead to physical injury, for example, trains or elevators. 
③  Use in a computer system that may be socially or publicly influential. 
④  Use in other equipment related to physical safety or equipment that may affect the functions of 
public facilities. 
•  For use in an environment subject to vibration, for example, on-vehicle use, consult us. 
 
Be sure to read all parts of this manual before use (installation, operation, maintenance, inspection, etc.) to 
properly use the equipment and only start using it after completely understanding all aspects, safety 
information and precautions relating to the equipment. 
Keep this manual handy after reading it. 
 
  0.2  Warning Label Location on Product   
The warning label is on the front upper left of the Servo Amplifier. 
 
 
  
						

							 
0.  SAFETY PRECAUTIONS 
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  0.3  Meaning of Warning Indication   
This chapter explains how warnings are indicated.     
Please understand the details of indications before reading 0.4 Cautions on Safety.   
 
 
0.3.1  Details of Indications 
Section 0.4 describes as follow s: 
 
 
①  :  Rank of cautions on safety 
② : Symbolic indication 
③  :  Meaning of each symbolic indication 
 
 
 
 
 
 
0.3.2  Rank of Cautions on Safety  
Cautions are divided into the following four ranks:   
①   Incorrect operation may result in such a dangerous situation as 
death or serious injury. 
②   Incorrect operation may result in such a dangerous situation as 
medium or slight injury or may result in only physical damage. 
Note that some indications with               may lead to serious results depending on situations.  
Since any indications are important, be sure to observe them. 
③   What should not be done are indicated. 
④   What should be done by all means are indicated. 
 
 
DANGER 
1. The amplifier inside 
①
② 
③
DANGER 
CAUTION 
PROHIBITION 
COMPULSION 
CAUTION 
						

							 
0.  SAFETY PRECAUTIONS 
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0.3.3 Symbolic Indication  
Symbolic indications are divided into the following eight kinds:   
 
Kinds of symbols Example of symbols 
Symbolic indications of 
danger  
 
DANGER,  
INJURY
  
 
ELECTRIC 
SHOCK
  
Symbolic indications 
calling attention  
 
CAUTION  
 FIRE  
 BURN 
Symbolic indications 
prohibiting actions  
 
PROHIBITION  
 PROHIBITION OF
DISASSEMBLING
 
 
 
Symbolic indication 
urging actions  
 
MANDATORY   
 
 
  
						

							 
0.  SAFETY PRECAUTIONS 
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 0.4  Cautions on Safety   
 DANGER 
   
 
1.  Dont operate the system in explosive environment, or you may be injured or fire 
may occur.   
 
 
2.  Never touch any inside part of the amplifier, or you may be struck by electricity.   
 
 
 
3.  Dont arrange wires nor conduct maintenance work and inspection under a 
hot-line condition.   
Be sure to turn the power off more than 5 minutes in advance.     
Otherwise, you may be struck by electricity.   
 
4.  Ask experts in respective fields for transportation, installation, wiring, operation, 
maintenance and inspection.     
Persons without expertise may receive electric shocks, be injured or fire may   
occur. 
 
   
 
5.  Be sure to ground the PE (protective earth) terminal    of the amplifier. 
The grounding terminal of the motor must be connected to the PE (protective   
earth) terminal    of the amplifier.   Otherwise, an electric shock may occur. 
 
 
6.  Dont damage cable, stress them abnormally, place heavy items on them nor get 
them caught between other parts or devices.     
Otherwise, an electric shock may occur. 
 
7.  Be sure to connect the power cable in accordance with the connection diagram 
or the Users Manual.     
Otherwise, you may be struck by electricity, or fire may occur. 
 
 
8.  Since no fuse is built into the main power supply input terminals (R, S and T) of 
the amplifier, be sure to insert a UL-approved circuit breaker or fast-blown fuse to 
the amplifier power supply input wiring to protect it and its peripherals. 
 
  
						

							 
0.  SAFETY PRECAUTIONS 
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 DANGER 
   
 
9.  During operation, never touch the motor rotator, or you may be injured.   
 
 
 
10.  While the power is supplied, never approach nor touch terminals, or you may be 
struck by electricity.   
 
 
11.  While the power is supplied, never remove any terminal cover, or you may be 
struck by electricity. 
 
  
						

							 
0.  SAFETY PRECAUTIONS 
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 CAUTION 
  
 
1.  Before installation, operation, maintenance and inspection, be sure to read the 
Users Manual and follow instructions detailed in the manual.     
Otherwise, you may be struck by electricity or be injured, or fire may occur.   
 
2.  Dont use the amplifier and the motor in any situations where the specifications 
are not fully satisfied.     
Otherwise, you may be struck by electricity or injured, or they may be damaged.   
 
3.  Dont use the amplifier and the motor if they are damaged.     
Otherwise, you may be injured or fire may occur.   
 
 
4.  Use the amplifier and the motor only in the combination specified, or fire or a 
trouble may occur.   
 
 
5.  Note that the amplifier, the motor and their peripheral equipment are heated to 
high temperatures.   
Dont touch them, or you may be burnt. 
 
   
 
6.  Check which side is up before unpacking, or you may be injured.   
 
 
 
7.  Check if what you have received are as per your order.     
Installation of an incorrect product may result in injury to you or breakage of the 
product.  
 
8.  Dont apply static electricity to the motor sensor terminal, or the motor may get 
out of order. 
 
  
						

							 
0.  SAFETY PRECAUTIONS 
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 CAUTION 
   
 
9.  Dont measure insulation resistance and dielectric strength, or these units may 
be damaged.   
When you have to measure them, please contact us.   
 
10.  Arrange cables in accordance with the Technical Standard for Electric Facilities 
and the Extension Rules.     
Otherwise, cables may be burnt and fire may occur.   
 
11.  Arrange cables correctly and securely, or the motor may run away and you may 
be injured.   
 
 
12.  Dont apply static electricity or high voltage to the motor sensor terminal, or the 
motor may get out of order.   
 
   
 
13.  Dont climb up these units nor place heavy substance on them, or you may be 
injured.  
 
 
14.  Dont stop the air inlets and outlets nor put foreign matters in them, or fire may 
occur.  
 
 
15.  Be sure to observe the direction of installation, or a trouble will occur.   
 
 
 
16.  Decide the distances between the amplifier, the inside surface of the control 
panel and other equipment in accordance with the Users Manual.   
Otherwise, troubles may occur.   
 
17.  Dont shock these units badly, or they may be get out of order.   
 
 
 
18.  During installation, take an extreme care not to drop nor overturn these units, or 
you may face serious dangers.     
When raising the motor, use the lifting bolt if it is fitted.   
 
19.  Never install these units where they are exposed to splash of water, in corrosive 
or inflammable gas atmosphere or near combustibles.   
Otherwise, fire may occur or they may get out of order.   
 
20.  Install them to any of nonflammables like metal, or fire may occur.   
  
						

							 
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 CAUTION 
   
 
21.  This motor is not equipped with any protective device.     
So, protect it with an overcurrent device, an earth leakage breaker, a thermal 
cutout or an emergency stop device.     
Otherwise, you may be injured or fire may occur.   
 
22.  During the power is supplied or for a while after the power is turned off, dont 
touch the amplifier radiator, the regenerative resistor and the motor because they 
are or have been heated to high temperatures.     
Otherwise, you may be burnt.   
 
23.  When any trouble has occurred, stop operating the system immediately, or you 
may be struck by electricity or injured, or fire may occur.   
 
 
24.  An extreme adjustment change will make the system operate unstably.    Never 
make such a change, or you may be injured.   
 
 
25.  To check operation of the system in a trial run, fix the motor and separate it from 
the mechanical system.     
Otherwise, you may be injured.     
After the trial run, mount it on the system.   
 
26.  The holding brake is not a stopping device to operate the system safely.     
So, install a stopping device to the system for the purpose, or you may be 
injured.  
 
 
27.  When an alarm occurs, remove the cause and check that the system is in safety.   
Then, reset the alarm and resume the operation.     
Otherwise, you may be injured.   
 
28.  When the power is restored after momentary interruption, dont approach the 
system because it may suddenly start again.   
(Design the system so that the operator can remain safe even if it may start 
again.)    
Otherwise, you may be injured.   
 
29.  Check that the power supply specification is normal. 
Otherwise, troubles may occur.     
 
  
						

							 
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 CAUTION 
   
 
30.  Since the amplifier frame is heated to high temperature, beware of it at the time 
of maintenance and inspection, or you may be burnt.   
 
 
31.  The electrolytic capacitor inside the amplifier is recommended to be replaced 
with a new one every five years for preventive maintenance providing that the 
yearly ambient temperature is 40°C. 
The expected life of the cooling fan motor is 10 years at the yearly ambient 
temperature of 40°C.    Regular replacement is recommended. 
 
32.  In case of repair, please contact us.     
If these units are disassembled by yourself, they may malfunction.   
 
   
 
33.  During transportation, take an extreme care not to drop nor overturn these units, 
or you may face serious dangers.   
 
 
34.  During transportation, dont catch cables and the motor shaft, or these unit may 
get out of order or you may be injured.   
 
   
 
35.  Dispose of the amplifier and the motor as general industrial wastes.   
 
 
  
						

							 
0.  SAFETY PRECAUTIONS 
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 PROHIBITION 
  
 
1.  Dont store these units where they are exposed to water, rain drops, hazardous 
gas or liquid.     
Otherwise, they will get out of order.   
 
   
 
2.  The built-in brake of the motor is for holding and should not be used for braking 
in general.   
If used for braking, the brake will be broken.   
 
   
 
3.  Dont overhaul the system, or fire will occur and you will be struck by electricity.   
 
 
  
 
4.  Do not remove the nameplate.