Sanyo Denki Py 2 Manual

 
8.  MAINTENANCE
 
8 - 25 
 8.4 Maintenance 
The Servomotor and amplifier do not require any special inspection.    To ensure optimum performance over 
their lifetimes, however, the user is expected to implement a reasonable level of inspection and 
maintenance, paying attention to the following points . 
 
 
 
 
 
[Inspection Procedure ] 
Table 8-3  Inspection Procedure 
Check  Check conditions Check item Check method Corrective  
point Timing In-operatio
n 
Out-of-ope
ration 
  measure 
Servomotor...

 
8.  MAINTENANCE
 
8-26 
 8.5 Overhaul Parts 
The parts listed in Table 8.4 will deteriorate with age.    For maintenance, inspect periodically. 
 
Table 8-4    Periodical Parts Inspection 
No. Parts Average replacement 
interval Method of replacement and others 
1  Capacitors for main circuit 
smoothing 5 years  Replace with new one. 
Load rate:   
50% maximum of the amplifier’s rated 
output current. 
Working condition:   
Year-round average temp. 106°F (40°C) 
2  Cooling fan motor 
 5 years  Replace...

 
9.  SPECIFICATIONS 
9－1   
 
 
 
 
 
 
 
SPECIFICATIONS 
 
 
 
 
 
9.1 Servo Amplifier............................................................................. 9-3 
9.1.1 Common Specifications..................................................... 9-3 
9.1.2  Acceleration and Decelerate Time .................................... 9-5 
9.1.3 Allowable Repetition Frequency ........................................ 9-6 
9.1.4 Precautions on Load......................................................... 9-9...

 
9.  SPECIFICATIONS 
9－2 
9.3 Combination Specifications ........................................................ 9-111 
9.3.1  P1 Series (B Coil) + PY2 ...................................................9-111 
9.3.2  P1 Series (H Coil) + PY2...................................................9-111 
9.3.3  P2 Series (H Coil) + PY2...................................................9-111 
9.3.4  P2 Series (D Coil) + PY2...................................................9-112 
9.3.5  P3 Series (D Coil) +...

 
9.  SPECIFICATIONS 
9－3 
 9.1 Servo Amplifier 
9.1.1 Common Specifications 
Table 9-1  Common Specifications 
Model No.   PY2A015 PY2A030 PY2A050 PY2E015 PY2E030 
Control function  Velocity, torque or position control (through switching of parameters). 
Control method IGBT PWM control, sine wave drive. 
Main circuit • 3-phase,    200 VAC to 230 VAC +10%, ‐15%, 
 50/60 Hz±3Hz. 
• Single-phase,   200 VAC to 230 VAC +10%, ‐15%, 
 50/60 Hz±3Hz. • Single-phase, 
  100 VAC to 115 VAC +10%,‐15%,
 50/60...

 
9.  SPECIFICATIONS 
9－4 
 
*1:  The supply voltage shall be within the specified range.  
  200 VAC power supply input type (PY2A) 
  Specified voltage range: 170 to 253 VAC 
The supply voltage must not exceed 230 VAC+10% (253 V). 
  100 VAC power supply input type (PY2E) 
  Specified voltage range: 85 to 127 VAC 
The supply voltage must not exceed 115 VAC+10% (127 V). 
  If the voltage exceeds the specified range, install a step-down transformer. 
*2:  When the amplifier is housed in a box, the...

 
9.  SPECIFICATIONS 
9－5 
9.1.2 Acceleration and Deceleration Time 
The acceleration time (t
a) and deceleration time (t
b) under certain load conditions are calculated using the 
following expressions. 
The expressions, however, are for within the rated speed, ignoring the viscosity torque and friction torque of 
the motor. 
 
  Acceleration time : t
a = (J
M + J
L) •       •           (sec) 
 
 
  Deceleration time : t
b = (J
M + J
L) •       •           (sec) 
 
t
a  :  Acceleration time (sec) 
t
b...

 
9.  SPECIFICATIONS 
9－6 
9.1.3  Allowable Repetition Frequency 
Start and stop repetition is limited by both the Servomotor and Servo Amplifier.     
Consideration is required to satisfy the requirements of both at the same time. 
 
 
●  Allowable repetition frequency based on the Servo Amplifier 
For use with a high frequency of starting and stopping, check that it is within the allowable frequency 
beforehand. 
The allowable repetition frequency varies with each combined motor type, capacity, load...

 
9.  SPECIFICATIONS 
9－7 
(1)  When the motor repeats a constant-speed status and a stop status 
When the operating state is as in Fig. 9-2, use the motor at a frequency in which the effective motor 
armature current effective value is at the motor rated armature current (I
R) or lower. 
Supposing the operating cycle is t, the usable range is represented in the following expression. 
 
 
t ≧                        [s] 
 
 
 
When the cycle time (t) has already been determined, find I
P, ta and tb...

 
9.  SPECIFICATIONS 
9－8 
(2)  When the motor repeats acceleration, deceleration and stop statuses 
This operating status is shown in Fig. 9-3, and the allowable value n (time/min) of repetition frequency 
can be obtained by the following expression. 
 
  n = 2.86 × 10
2 ×               ×            × TR2        (times/min) 
 
 T
R: Rated torque 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig. 9-3    Motor Current and Speed Timing Chart 
 
(3)  When the motor repeats acceleration, constant-speed and deceleration...