Emerson A6370 Overspeed Protection Monitor

A6370 Overspeed Protection Monitor

The A6370 monitor is part of the AMS 6300 SIS overspeed protection system and is mounted in a 19-inch rack (84HP wide, 3RU high) with the A6371 system backplane.

An AMS 6300 SIS consists of three protection monitors (A6370) and one backplane (A6371).

The system is designed for eddy current sensors, Hall element sensors, and magnetic (VR) sensors.

Sensor Supply Voltage

Nominal Supply Voltage -24.5 V ±1.5 V DC Short-Circuit Proof, Galvanic Isolation

Maximum Current Current 35 mA

Signal Inputs, Eddy Current and Hall Element Sensors

Input signal voltage range 0 V to 26 V (+/-) Reverse polarity protection

Limit range ± 48 V

Frequency range 0 to 20 kHz

Typical input resistance 100 kΩ

Signal input, magnetic (VR) sensors

Input signal voltage range min. 1 Vpp, max. 30 V RMS

Frequency range 0 to 20 kHz

Typical input resistance 18 kΩ

Digital inputs (backplane)

Number of inputs 4 (galvanically isolated All digital inputs All digital inputs)

(test value 1. test value 2. enable test value, reset latch)

Logic low 0 V to 5 V

Logic high 13 V to 31 V, open circuit

Typical Input Resistance 6.8 kΩ

Current Outputs (Backplane)

Number of Outputs 2 Galvanically isolated, common ground

Range 0/4 to 20 mA or 20 to 4/0 mA

Accuracy ±1% of full scale

Maximum load <500 Ω

Maximum output current Output current 20 mA

Digital outputs (backplane)

Number of outputs 7 (short-circuit proof) Outputs 1 to 6. channel Ok (COK)

Logic low < 100 mV

Logic high -2 V System supply voltage

Maximum current Current 25 mA

Pulse outputs (backplane)

Number of outputs 3 Open collector-emitter, current limited, galvanically isolated

Maximum Voltage Voltage 31.2 V

Maximum Current Current 16 mA @ 24 V

Frequency range 0 to 20 kHz

Pulse outputs (front panel)

Number of outputs 1 (short-circuit proof)

Voltage 0 to 5 V TTL- signal

Frequency range 0 to 20 kHz

Typical output impedance 10 kΩ

Sensor output (front panel)

Number of outputs 1 (short-circuit proof)

Voltage 0 to 3.9 V Factor 0.15 ± 3

Frequency range 0 to 20 kHz

Typical output impedance 10 kΩ