ALIND AN Series, User Manual

Page: 8 / 54

SAFETY REQUIREMENTS
Page 6 of 7
ANC 303
ALUMINIUM INDUSTRIES LIMITED
Relays Division
WARNING
Current transformer circuit
Never allow the current transformer (CT) secondary circuit connected to
this equipment to be opened while the primary system is live. Opening the
CT circuit will produce a dangerous high voltage.
Exposed terminals
Do not touch the terminals of this equipment while the power is on, as the
high voltage generated is dangerous.
Residual voltage
Hazardous voltage can be present in the DC circuit just after switching off
the DC power supply. It takes about 30 seconds for the voltage to
discharge.
CAUTION
Earth
Earth the earthing terminal of the equipment securely.
Operation conditions
Use the equipment within the range of ambient temperature, humidity and
dust as detailed in the specification and in an environment free of abnormal
vibration.
Ratings
Before applying AC voltage and current or DC power supply to the
equipment, check that they conform to the equipment ratings.
Printed circuit board
Do not attach and remove the printed circuit board while the DC power to
the equipment is on, as this may cause the equipment to malfunction.
External circuit
When connecting the output contacts of the equipment to an external
circuit, carefully check the supply voltage used and prevent the connected
circuit from overheating.
Connection cable
Carefully handle the connection cable without applying excessive force.