2. INSTALLATION
2 - 6
2.5 Parts having service life
Service life of the following parts is listed below. However, the service life vary depending on operating
methods and environment. If any fault is found in the parts, they must be replaced immediately regardless of
their service life. For parts replacement, please contact your sales representative.
Part name
Life guideline
Smoothing capacitor
10 years
Relay
Number of power-on and forced stop by EM1
(Forced stop 1) times: 100,000 times
Number of on and off for STO: 1,000,000 times
Cooling fan
10,000 hours to 30,000 hours (2 years to 3 years)
Absolute position battery
Refer to section 12.2.
(1) Smoothing capacitor
The characteristic of smoothing capacitor is deteriorated due to ripple currents, etc. The life of the
capacitor greatly depends on ambient temperature and operating conditions. The capacitor will reach
the end of its life in 10 years of continuous operation in air-conditioned environment (ambient
temperature of 40 °C or less).
(2) Relays
Contact faults will occur due to contact wear arisen from switching currents. Relays reach the end of
their life when the power has been turned on and forced stop by EM1 (Forced stop 1) has occurred
100,000 times in total, or when the STO has been turned on and off 1,000,000 times while the servo
motor is stopped under servo-off state. However, the life of relays may depend on the power supply
capacity.
(3) Servo amplifier cooling fan
The cooling fan bearings reach the end of their life in 10,000 hours to 30,000 hours. Normally, therefore,
the cooling fan must be replaced in a few years of continuous operation as a guideline. If unusual noise
or vibration is found during inspection, the cooling fan must also be replaced.
The life indicates under the yearly average ambient temperature of 40 °C, free from corrosive gas,
flammable gas, oil mist, dust and dirt.
Summary of Contents for MR-J4-100A(-RJ)
Page 19: ...10 MEMO ...
Page 75: ...1 FUNCTIONS AND CONFIGURATION 1 56 MEMO ...
Page 83: ...2 INSTALLATION 2 8 MEMO ...
Page 159: ...3 SIGNALS AND WIRING 3 76 MEMO ...
Page 203: ...4 STARTUP 4 44 MEMO ...
Page 351: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 40 MEMO ...
Page 365: ...8 TROUBLESHOOTING 8 14 MEMO ...
Page 387: ...9 DIMENSIONS 9 22 MEMO ...
Page 403: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 553: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 30 MEMO ...
Page 567: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 607: ...14 COMMUNICATION FUNCTION MITSUBISHI ELECTRIC GENERAL PURPOSE AC SERVO PROTOCOL 14 40 MEMO ...
Page 639: ...15 USING A LINEAR SERVO MOTOR 15 32 MEMO ...
Page 767: ...18 MR J4 03A6 RJ SERVO AMPLIFIER 18 84 MEMO ...
Page 856: ...APPENDIX App 41 ...
Page 905: ...MEMO ...