MODEL: PDU

PDU SPECIFICATIONS

ES-1368 Rev.10 Page 1/4

http://www.m-system.co.jp/

Plug-in Signal Conditioners M-UNIT

PULSE SCALER

(pulse dividing; selectable range)

Functions & Features

• Galvanically isolating pulse rate signals and converting

them into convenient engineering unit

• Excitation

• Scaling factor adjustable with the front switches

• Uniform output pulse

• Various outputs (relay, open collector and voltage pulses)

• Isolation up to 2000 V AC

• High-density mounting

Typical Applications

• Positive displacement flowmeters and turbine meters

• Dry contact signal produced at rotating machine

50

(1.97)

127

(5)

80

(3.15)

mm (inch)

MODEL: PDU–[1][2][3][4]–[5][6]

ORDERING INFORMATION

• Code number: PDU-[1][2][3][4]-[5][6]

Specify a code from below for each of [1] through [6].

(e.g. PDU-CM1N-B/Q)

• Use Ordering Information Sheet (No. ESU-1368). Default

setting (table below) will be used if not otherwise specified.

• Specify the specification for option code /Q

(e.g. /C01/S01)

Factory default setting

ITEM

DEFAULT

Scaling factor

Output pulse

width

Approx. 50% duty ratio at the max.

input frequency (400 msec. max.);

Limited to the range indicated in Out-

put Pulse Width code 3 for relay output

Filter

Without;

For dry contact input with frequency

≤10 Hz, the filter is automatically

provided.

[1] INPUT

A: Dry contact

B: Voltage pulse (Specify sensitivity)

C: 5 V pulse (sensitivity 2 V)

D: 12 V/24 V pulse (sensitivity 5 V)

H: Two-wire current pulse

[2] OUTPUT

A: Open collector (max. 100 kHz)

M: 5 V pulse (max. 100 kHz)

N: 12 V pulse (max. 100 kHz)

P: 24 V pulse (max. 100 kHz)

H: Relay contact (max. 5 Hz)

( ) = Max. frequency

[3] OUTPUT PULSE WIDTH

1: One-shot output (5 – 200 μsec.)

(Not selectable with relay contact.)

2: One-shot output (0.18 – 9 msec.)

(Not selectable with relay contact.)

3: One-shot output (9 – 400 msec.)

[4] OUTPUT LOGIC

N: The same as the input

R: Inverted

[5] POWER INPUT

AC Power

B: 100 V AC

C: 110 V AC

D: 115 V AC

F: 120 V AC

G: 200 V AC

H: 220 V AC

J: 240 V AC

DC Power

S: 12 V DC

R: 24 V DC

V: 48 V DC

[6] OPTIONS

blank: none

/Q: With options (specify the specification)