Omron R88D-GT series, Руководство пользователя

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4-33
4-3 Wiring Conforming to EMC Directives
4
System Design
 Leakage Breakers
• Select leakage breakers designed for protection against grounding faults.
• Because switching takes place inside the Servo Drives, high-frequency current leaks from the
switching elements of the Servo Drive, the armature of the motor, and the cables. High-frequency
breakers with surge withstand capability do not detect high-frequency current, preventing the
breaker from operating with high-frequency leakage current. When using a general-purpose
leakage breaker, use three times the sum of the leakage current given in the following table as a
reference value.
• When selecting leakage breakers, remember to add the leakage current from devices other than
the Servomotor, such as machines using a switching power supply, noise filters, inverters, and so
on. To prevent malfunction due to inrush current, we recommend using a leakage breaker of ten
times the total of all leakage current values.
• The leakage breaker is activated at 50% of the rated current. Allow leeway when selecting a
leakage breaker.
• For details on leakage breakers, refer to the manufacturer’s catalog.
• The following table shows the Servomotor leakage current for each Servo Drive model.
Note 1. The above leakage current is for cases when Servomotor power cable length is 3 meters or shorter. (The
leakage current depends on the power cable length and the insulation.)
Note 2. The resistor plus capacitor method provides a yardstick to measure the leakage current that may flow
through the human body when the Servomotor or Servo Drive is not grounded correctly. The above
leakage current is for normal temperature and humidity. (The leakage current depends on the temperature
and humidity.)
Servo Drive
model
Input power
Leakage current (mA)
Resistance method
Resistor plus
capacitor
Clamping method
(Measurement filter ON at H10K13283)
Motor cable length:
3 m
Motor cable length:
3 m
Per meter of motor cable
R88D-GTA5L Single-phase 100 V 0.42 mA 0.33 mA 0.003 mA
R88D-GT01L Single-phase 100 V 0.45 mA 0.35 mA 0.002 mA
R88D-GT02L Single-phase 100 V 0.46 mA 0.35 mA 0.002 mA
R88D-GT04L Single-phase 100 V 0.48 mA 0.35 mA 0.002 mA
R88D-GT01H Single-phase 200 V 0.92 mA 1.04 mA 0.016 mA
R88D-GT02H Single-phase 200 V 0.94 mA 1.06 mA 0.013 mA
R88D-GT04H Single-phase 200 V 1.15 mA 1.13 mA 0.013 mA
R88D-GT08H Single-phase 200 V 1.27 mA 1.09 mA 0.014 mA
R88D-GT10H Single-phase 200 V 1.27 mA 1.19 mA 0.015 mA
R88D-GT15H Single-phase 200 V 1.51 mA 1.20 mA 0.015 mA
R88D-GT08H Three-phase 200 V 1.62 mA 0.98 mA 0.009 mA
R88D-GT10H Three-phase 200 V 1.77 mA 1.03 mA 0.008 mA
R88D-GT15H Three-phase 200 V 2.18 mA 1.04 mA 0.003 mA
R88D-GT20H Three-phase 200 V 2.88 mA 1.08 mA 0.008 mA
R88D-GT30H Three-phase 200 V 2.83 mA 1.15 mA 0.011 mA
R88D-GT50H Three-phase 200 V 3.07 mA 1.14 mA 0.011 mA
R88D-GT75H Three-phase 200 V 6.32 mA 1.23 mA 0.013 mA