Emerson 300 Power Supply User Manual


 
Safety Precautions
Conformity and standards
This equipment complies with the following requirements:
Normative references: Uninterruptible Power System (UPS).
z IEC60950-1, IEC62040-1-1 — General and safety requirements for use in operator access area
z IEC/EN62040-2 EMC requirements
z IEC62040-3 — Performance requirements and test methods
Continued compliance requires installation in accordance with these instructions and the use of manufacturer approved
accessories only.
Warning
HIGH EARTH LEAKAGE CURRENT: EARTH CONNECTION IS ESSENTIAL BEFORE CONNECTING THE INPUT
SUPPLY.
This equipment must be earthed in accordance with local electrical codes.
Warning
Upstream power distribution protection device of the UPS must be selected according to local electrical codes.
Warning
If any internal fuse of the UPS is damaged, it must be replaced by professionals with a new one of the same specifications.
Caution
This equipment is fitted with radio frequency interference (RFI) suppression filters.
Earth leakage current exceeds 3.5mA and is less than 1000mA.
Transient and steady-state earth leakage currents, which may occur when starting the equipment, should be taken into
account when selecting instantaneous residual current circuit breaker (RCCB) or residual current detector (RCD) devices.
RCCBs must be selected insensitive to DC unidirectional pulses (Class A) and transient current pulses.
Note also that the earth leakage currents of the load will be carried by this RCCB or RCD.
Warning
This system has a signal available for use with an automatic device, externally located, to protect against backfeeding
voltage through the mains Static Bypass circuit. If this protection is not used with the switchgear that is used to isolate the
bypass circuit, a label must be added at the switchgear to advise service personnel that the circuit is connected to a UPS
system.
The text is the following or equivalent:
ISOLATE THE UNINTERRUPTIBLE POWER SYSTEM BEFORE WORKING ON THIS CIRCUIT.
General
As with other types of high power equipment, dangerous voltages are present within the UPS and battery enclosure. The
risk of contact with these voltages is minimized as the live component parts are housed behind a hinged, lockable door.
Further internal safety screens make the equipment protected to IP20 standards.
No risk exists to any personnel when operating the equipment in the normal manner, following the recommended operating
procedures.
All equipment maintenance and servicing procedures involve internal access and should be carried out only by trained
personnel.