Brainboxes PX-246 Spezifikationen PDF herunterladen (Seite 9)

Specification

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:

NOTE:NOTE:

NOTE:

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

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

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

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

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

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.

Maximum supply voltage 35V continuous (60V protection)

Reverse polarity protection -35V continuous

Maximum operating current

360mA at 24V

480mA at 12V

Maximum standby current

96mA at 24V

126mA at 12V

3.3.1 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 S1 & S2 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

±2% of full scale phase to phase

Minimum frequency 3.5Hz

Maximum frequency 75.0Hz

Frequency resolution 0.1Hz

Frequency accuracy ±0.2Hz

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