Suzhou MONARCH Control Technology Co., Ltd. NICE3000 New, User Manual, Page: 18 / 233

NICE3000
new
User Manual Safety Information and Precautions
- 17 -
Use Stage
Safety
Grade
Precautions
During
maintenance
DANGER
• Do not repair or maintain the controller at power-on. Failure
to comply will result in electric shock.
• Repair or maintain the controller when its voltage is lower
than 36 VAC, about two minutes after the controller is
powered off. Otherwise, the residual voltage in the capacitor
may result in personal injury.
• Do not allow unqualified personnel to repair or maintain the
controller. Failure to comply will result in personal injury or
damage to the controller.
WARNING
• Repair or maintenance of the controller may be performed
only by the center authorized by Monarch or qualified
personnel. Failure to comply will result in personal injury or
damage to the controller.
• Power supply must be cut off before repair or maintenance
of the controller.
CAUTION
• Set the parameters again after the controller is replaced. All
the pluggable components must be plugged or removed only
after power-off.
• Strictly obey the laws and regulations and repair and
maintain the elevator equipment periodically. Only timely
troubleshooting can ensure the safety of passengers.
Disposal
CAUTION
The packaging materials, screws and terminal blocks can be
re-used and it is suggested that you keep them well for future
use.
WARNING
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.
1.2 General Precautions
1. Motor insulation test
Perform the insulation test when the motor is used for the first time, or when it is reused
after being stored for a long time, or in a regular check-up, in order to prevent the poor
insulation of motor windings from damaging the controller. The motor must be disconnected
from the controller during the insulation test. A 500-V mega-Ohm meter is recommended for
the test. Ensure that the insulation resistance is not less than 5 MΩ.
2. Thermal protection of the motor
If the rated capacity of the motor selected does not match that of the controller, especially
when the rated power of the controller is greater than that of the motor, adjust the motor
protection parameters on the operation panel of the controller or install a thermal relay for
the motor circuit for protection.