janitza UMG510, Руководство по эксплуатации

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10
Failure to comply with the specified minimum
free spaces around the UMG 510 will lead to
damage of the unit at elevated ambient tem-
perature.
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Abb. Mounting position UMG510
Installation
Installation
Installation location
The UMG 510 is suited for fixed panel-mounting in
substations or control rooms.
Installation position
To achieve sufficient ventilation mount the UMG 510
in vertical position.
Do not cover the ventilation slots and leave at least
5cm space above and below the unit. 5cm space will
be required at both sides for connecting the ethernet
cable.
Protective ground
Connect the protective ground to the provided screw
terminal at the backside of the unit according to ap-
plicable safety regulations before making any other
connections to the unit.
Power supply
The required power supply is marked on the type
plate of the UMG 510.
Connect the power supply to terminals 17 and 18.
The absolute maximum voltage from terminals 17
and 18 to case ground is 300V AC. Voltages exceed-
ing this limit can cause damage to the unit and dan-
ger to the operator. A grounded power supply should
always be used to minimize the risk of overvoltages.
Caution
- The wiring material used for the power supply must
be specified for voltages of 300VAC.
- The power supply must be fused external at nomi-
nal fuse value of 4..10A.
- A circuit breaker for the power supply must be pro-
vided.
- The circuit breaker must be placed near to the
UMG510 and easily accessible.
- The circuit breaker must be clearly marked.
- Check the supply voltage with the type plate mark-
ing before connecting.
- The unit casing must be properly grounded.
- Stranded wire may not be soldered when using
screw terminals. Use proper ferrules.
- Pluggable terminals may only be plugged in idle
state.
- Plug only exactly matching screw terminals into the
unit. Pay attention for same type (with/without lock-
ing screws) and number of pins.
- Do not use potential transformer secondaries as a
source of power supply for the UMG 510. Switching
operation in medium and high voltage distribution
systems will cause transient overvoltages which
may destroy the UMG 510.