Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5-117
Noise on the Reference Input Line
If the reference input line is affected by noise, ground the 0V line (SG) of the
reference input line. If the main circuit wiring for the motor is accommodated in a
metal conduit, ground the conduit and its junction box.
All grounds must be made to only one point in the system.
Using Noise Filters
Use a noise suppression filter to prevent noise generated by the power supply line.
Install a noise filter on the power supply line for peripheral equipment as necessary.
The following table recommends noise filters for each servo amplifier model.
Note: Filters manufactured by Schaffner .
Voltage Servo Amplifier Model
Recommended Noise Filter
Model Manufacturer
Single-phase,
100V
SGDH-A3AE to -01BE FN2070-6/07 / FS 5827-4-07
Schaffner
SGDH-02BE FN2070-10/07
Single-phase,
200V
SGDH-A3AE to -02AE FN2070-6/07 / FS5827-4-07 (New)
SGDH-04AE FN2070-10/07 / FS5827-7-07 (New)
SGDH-08AE-S FN2070-16/07 / FS5827-15-07 (New)
SGDH-15AE-S FN350-30/33 / FS5827-25-07 (New)
Three-phase,
200V
SGDH-05AE to -20AE FN258L-7/07
SGDH-30AE FN258L-30/07
SGDH-50AE to -60AE FN258L-42/07
SGDH-75AE FN258L-55/07
SGDH-1AAE, -1EAE FS5559-150-35
Three-phase,
400V
SGDH-05DE to -15DE FN258L-7/07 / FS5826-6-07 (New)
SGDH-20DE to -30DE FN258L-16/07 / FS5826-10-07 (New)
SGDH-50DE FS5559-35-33 / FS5826-20-07 (New)
SGDH-60DE to -75DE FS5559-35-33 / FS5826-30-07 (New)
SGDH-1ADE to -1EDE FS5559-80-34 / FS5826-55-07 (New)
SGDH-2BDE FN258L-75-34
SGDH-3ZDE FN258L-100-35
SGDH-3GDE FN258L-130-35
SGDH-4EDE FN258L-180-7
SGDH-5EDE FN258L-180-7
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