Delta 16 SM600 Datasheet download pdf (Page 3)

SM6000 DELTA ELEKTRONIKA BV

July 2003, rev. March 2012 SAFETY INSTRUCTIONS Page 2 - 1

Safety Instructions

Caution

The following safety precautions must be observed during all phases of operation, service and

repair of this equipment. Failure to comply with the safety precautions or warnings in this document

violates safety standards of design, manufacture and intended use of this equipment and may

impair the built-in protections within. Delta Elektronika shall not be liable for user’s failure to comply

with these requirements.

Installation Category

The Delta Elektronika power supplies have been evaluated to installation category II (Over voltage

category II).

Grounding of Mains Input

This product is a safety Class 1 instrument. To minimize shock hazard, the instrument chassis

must be connected to the AC Power Supply mains through a three or four conductor power cable

for resp. a single or three phase unit, with the ground wire firmly connected to an electrical ground

(safety ground) at the power outlet.

For instruments designed to be hard-wired to supply mains, the protective earth terminal must be

connected to the safety electrical ground before another connection is made. Any interruption of

the protective ground conductor, or disconnection of the protective earth terminal will cause a

potential shock hazard that might cause personal injury.

Grounding of Power Output

If the output of a unit is specified to deliver max 60Vdc, and either the negative or positive power

output is grounded, the voltage on the following connections can be considered safe:

- power outputs and sense connections

- programming/monitor/status-signals, Interlock, Master/Slave-connections, ACF/DCF-relay

- all Delta Elektronika interfaces.

Caution 1: If a low voltage unit has both power outputs floating, or if the output is in series with an

external high AC or DC voltage, the negative power output can exceed the safe value in respect to

ground as specified in the above warning!

Caution 2: Although a high voltage unit is set to a safe voltage below 60V, for safety it must always

be considered as high voltage unit! Wrong operation, a programming error or an external defect

can result in an unsafe high output voltage.

Caution 3: When programming a high voltage unit directly via a PC or via a network connection,

either ground the negative power output or use a safety isolated interface!

For more information and schematics regards Grounding and Safety, see the special application

note "Safe operation of a power supply" on the Delta Elektronika website.

Warn ing:

When the pos i tive power out put can ex ceed 60Vdc in re spect to the neg a tive out put,

ad di tional ex ter nal mea sures must be taken to en sure safety iso la tion of the fol low ing:

- power out puts and sense con nec tions.

Warn ing:

When the neg a tive power out put of the unit can ex ceed 60Vdc / 42.4Vpk in re spect to ground,

ad di tional ex ter nal mea sures must be taken to en sure safety iso la tion of the fol low ing:

- power out puts and sense con nec tions

- pro gram ming/mon i tor/sta tus-sig nals, In ter lock, Mas ter/Slave-con nec tions, ACF/DCF-re lay

- in ter faces with op er a tional iso la tion

- non-iso lated in ter faces.

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Delta 16 SM600 Datasheet Page 3

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