1 Safety Information and Precautions NICE5000 User Manual
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6. Switch (contactor) on the input and output sides of the controller
If a contactor is installed between the power supply and the input side of the controller,
DO NOT use it to start or stop the controller. However, if there is a need to use the
contactor to start or to stop the controller, make sure the time interval between switching
is at least one hour. If the interval between switching is shorter than one hour, this will
reduce the service life of the capacitor inside the controller.
If a switch such as contactor is installed between the output side of the controller
and the motor, operate the switch only when the controller has no output. Otherwise,
modules inside the controller may be damaged.
380 VAC
50/60 Hz
R
S
T
V
W
U
Contactor KM
Contactor KM or
other switches
M
Controller
7. Use outside the rated voltage
The controller must not be used outside the allowable voltage range specied in this
manual. Otherwise, components inside the controller may be damaged. If required, use
a corresponding voltage step-up or step-down device.
8. Surge suppressor
The controller has a built-in voltage dependent resistor (VDR) for suppressing the surge
voltage generated when the inductive loads (electromagnetic contactor, electromagnetic
relay, solenoid valve, electromagnetic coil and electromagnetic brake) around the
controller are switched on or off. If the inductive loads generate very high surge voltage,
use a surge suppressor for the inductive load or use a surge suppressor together with a
diode..
Do not connect the surge suppressor on the output side of the controller.
9. Altitude and de-rating
In places where the altitude is above 1000 m and the cooling effect reduces due to thin
air, it is necessary to de-rate the controller. Contact Monarch for technical support.
10. Special usage
If wiring that is not described in this manual, such as common DC bus is applied, contact
the agent or Monarch for technical support.
11. Disposal
The electrolytic capacitors on the main circuits and PCB may explode when they are
burnt. Poisonous gas is generated when the plastic parts are burnt. Treat them as
ordinary industrial waste.
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