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ROC364 Instruction Manual

3-38 Input and Output Modules Rev Jun/05

3.7.8 Slow Pulse Input Modules—Source and Isolated

Slow Pulse Input Source Module Specifications

MODULE RACK TERMINALS

A: Not used.

B: Input/source voltage.

C: Common.

INPUT

Type: Contact sense.

Range: Inactive: 0 to 0.5 mA. Active: 2 to 9 mA.

Source Voltage: 11 to 30 V dc.

Source Current: Determined by source voltage

(Vs), loop resistance (Rl), and scaling resistor (Rs):

I = (Vs – 1)/(3.3K + Rl + Rs)

POWER REQUIREMENTS

Source Input: 11 to 30 V dc, 9 mA maximum from

ROC power supply.

Module: 4.9 to 5.1 V dc, 1 mA maximum (supplied

by ROC).

INPUT ISOLATION

Not isolated. Terminal C tied to power supply

common.

Slow Pulse Input Isolated Module Specifications

FIELD WIRING TERMINALS

A: Not used.

B: Positive input.

C: Negative input.

INPUT

Type: Two-state current sense.

Range: Inactive: 0 to 0.5 mA. Active: 2 to 9 mA.

Current: Determined by input volt-age (Vi), loop

resistance (Rl), and scaling resistor (Rs):

I = (Vi – 1)/(3.3K + Rl + Rs)

Maximum Voltage: 30 V dc forward, 5 V dc

reverse.

POWER REQUIREMENTS

4.9 to 5.1 V dc, 1 mA maximum (supplied by ROC).

INPUT ISOLATION

Isolation: 100 MΩ minimum, input to output, and

input or output to case.

Voltage: 4,000 V ac (RMS) minimum, input to

output.

Capacitance: 6 pF typical, input to output.

Slow Pulse Input Modules—Source and Isolated Common Specifications

INPUT

Loop Resistance (Rl): 4.5 kΩ maximum for best

efficiency.

Scaling Resistor (Rs): 10 Ω supplied (see Input

Source Current equation to compute other value).

Frequency Response: 0 to 10 Hz maximum, 50%

Duty Cycle.

Input Filter (Debounce): 50 ms.

VIBRATION

20 Gs peak or 0.06 in. double amplitude,

10 to 2,000 Hz, per MIL-STD-202 method 204

condition F.

MECHANICAL SHOCK

1500 Gs 0.5 ms half sine per MIL-STD-202 method

213, condition F.

WEIGHT

37 g (1.3 oz).

CASE

Solvent-resistant thermoplastic polyester, meets

UL94V-0.

Dimensions 15 mm D by 32 mm H by 43 mm W

(0.6 in. D by 1.265 in. H by 1.690 in. W), not

including pins.

ENVIRONMENTAL

Meets the Environmental specifications of the ROC

in which the module is installed, including

Temperature, Humidity, and Transient Protection.

APPROVALS

Approved by CSA for hazardous locations Class I,

Division 2, Groups A, B, C, and D.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 145 146

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Emerson ROC364 Manual de instrucciones Pagina 72

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