Brainboxes PX-246 Especificaciones descargar pdf (Pagina 9)

Specifications

Part No. 057-120 8660 OPERATING MANUAL ISSUE 1 07/05/2010 ADM

3.2 TERMINAL SPECIFICATION

Connection type Two part connector.

• Male part fitted to module

• Female part supplied in module

packing case - Screw terminal,

rising clamp, no internal spring.

Example showing cable entry and screw

terminals of a 10 way connector

Minimum cable size 0.5mm² (AWG 24)

Maximum cable size 2.5mm² (AWG 10)

NOTE: For purchasing additional connector plugs from DSE, please see the section entitled

Maintenance, Spares, Repair and Servicing elsewhere in this document.

3.3 POWER SUPPLY REQUIREMENTS

Minimum supply voltage 8V continuous

Cranking dropouts Able to survive 0V for 50mS providing the supply was at least 10V before the

dropout and recovers to 5V afterwards.

This is more than sufficient to allow the module to operate during engine

cranking where the battery supply falls as low as 4V (on a 12V system!)

This is achieved without the need for internal batteries or other external

requirements.

Maximum supply voltage 35V continuous (60V protection for surges)

Reverse polarity protection -35V continuous

Maximum operating current

(all inputs and outputs on)

400mA at 24V

200mA at 12V

Maximum standby current

(all inputs and outputs off)

110mA at 24V

210mA at 12V

Plant supply instrumentation display

Range 0V-70V DC (Note Maximum continuous operating voltage of 35V DC)

Resolution 0.1V

Accuracy ±1% full scale (±0.7V)

3.4 GENERATOR BUS AND MAINS VOLTAGE / FREQUENCY SENSING

Measurement type True RMS conversion

Sample Rate 5KHz or better

Harmonics Up to 10

or better

Input Impedance 300K Ω ph-N

Phase to Neutral 15V

(minimum required for sensing frequency

)

to 333V AC

(absolute maximum)

Suitable for 110V to 277V nominal

(±20% for under/overvoltage detection)

Phase to Phase 26V

(minimum required for sensing frequency

)

to 576V AC

(absolute maximum)

Suitable for 190V ph-ph to 479V ph-ph nominal

(±20% for under/overvoltage detection)

Common mode offset from Earth 100V AC (max)

Resolution 1V AC phase to neutral

2V AC phase to phase

Accuracy ±1% of full scale phase to neutral (±3.33V ph-N)

±2% of full scale phase to phase (±11.52V ph-ph)

Minimum frequency 3.5Hz

Maximum frequency 75.0Hz

Frequency resolution 0.1Hz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 73 74

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Brainboxes PX-246 Especificaciones Pagina 9

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