E 6
2. Operating Specifications
2.4 Interference
Protection of Servo
Controller
The control and power inputs of the servo controller are protected
against interferences.
An increased operational reliability and additional protection
against malfunctions is achieved through following measures:
– Use of mains filter when the mains voltage is affected by the connection of large
consumers (reactive-power compensation equipment, HF-furnaces etc.)
– Protective wiring of inductive consumers (solenoid valves, relays, electromagnets)
with RC elements or similar devices to absorb the energy released at switch-off.
– Separate laying of power lines as described in the connection directions to avoid
inductive and capacitive coupling of interference pulses.
Paired-twisted cables protect against inductive parasitic voltages, shielding
provides protection against capacitive parasitic voltages. Optimal protection is
achieved with twisted and shielded cables when signal and power lines are layed
separately.
The servo controller KEB COMBIVERT S4 transmits waves of high frequency.
Following measures can reduce the arising interference pulses that may effect
electric plants in the vicinity of the servo controller:
– Installation of the servo controller in a metal housing.
– Shielded motor cables.
The shield must be connected to PE of the servo controller and to the housing of
the motor (connect extensive shield). The shielding shall not be used as protective
earthing. Only an uninterrupted shield beginning as close as possible at the servo
controller or servo motor ensures a safe function of the shielding.
– Good earthing (metal-powder tape or 10 mm
2
earth lead)
– Use of radio interference suppression filters.
2.5 Interference
Protection of
Electric Plants
2.6 Operating Directions
– Install a circuit interrupter between voltage supply and servo controller to permit
the independent switch-off of KEB COMBIVERT S4.
– Frequent switching between mains and servo controller is not permitted!
– The switching between motor and servo controller during operation is prohibited!
– The servo system KEB COMBIVERT S4 is to be operated under suitable
conditions (see Ambient Condition).
To avoid premature ageing or destruction of the servo system
KEB COMBIVERT S4 observe the following directions!
To Next Page
Loading...
Need help?
General