Littelfuse M4700 User Manual

Engine Control

Alarm Monitoring

Alarm Indication

M4500, M4600, & M4700 SERIES

Alarm Indicators

M4600

M4700 M4500

Simplified Circuit Diagram

+L–NDC

CHAN. 1

CHAN. 2

CHAN. 3

1 2 3

A

1 2 3

B

CHAN. 11

CHAN. 12

CHAN. 13

Ordering Information

ORDERING NUMBER CONTROL POWER INPUT REFERENCE

M4500.0010 24 Vdc/Vac +24 Vdc
M4500.0020 48 Vdc/Vac +48 Vdc
M4500.0030 12 Vdc/Vac +12 Vdc
M4500.0040 24 Vdc/Vac 0 Vdc
M4500.0050 48 Vdc/Vac 0 Vdc
M4500.0060 12 Vdc/Vac 0 Vdc
M4600.0010 24 Vdc/Vac +24 Vdc
M4600.0020 48 Vdc/Vac +48 Vdc
M4600.0030 12 Vdc/Vac +12 Vdc
M4600.0040 110 Vdc +110 Vdc
M4600.0050 24 Vdc/Vac 0 Vdc
M4600.0060 48 Vdc/Vac 0 Vdc
M4600.0070 12 Vdc/Vac 0 Vdc
M4700.0010 24 Vdc/Vac +24 Vdc
M4700.0020 48 Vdc/Vac +48 Vdc
M4700.0030 12 Vdc/Vac +12 Vdc
M4700.0040 110 Vdc +110 Vdc
M4700.0050 24 Vdc/Vac 0 Vdc
M4700.0060 48 Vdc/Vac 0 Vdc
M4700.0070 12 Vdc/Vac 0 Vdc
M4700.0080 110 Vdc 0 Vdc
M4700.0090 230 Vac +24 Vdc
M4700.0100 110 Vac +24 Vdc
M4700.0110 230 Vac 0 Vdc
M4700.0120* 24 Vdc +24 Vdc
M4700.0120* 24 Vdc +24 Vdc
M4700.0130
M4780.0010

ACCESSORIES DESCRIPTION

M0845.0010 Front cover for M4500 with handle IP54
M0845.0020 Front cover for M4500 with key IP54
M0846.0010 Front cover for M4600 with handle IP54
M0846.0020 Front cover for M4600 with key IP54

M0847.0010 Front cover for M4700/ M4780 with handle IP54
M0847.0020 Front cover for M4700/ M4780 with key IP54

*W ith comm on alarm rel ay, siren relay and bui lt-in sir en.
†Inv erted re ference. Wit h common alarm rela y, siren rela y and built- in siren.
‡ Modbus Indicator Panel, 2 0 channels, 24 Vdc, co mmon alarm r elay and buil t in siren.

†

230 Vac +24 Vdc

‡

AC

CHAN. 10

11

10

REF.

10

11

CHAN. 20

14

15 16

12 13

ALARM

RELAY

SIREN
RELAY

12

M4700.0120/0130/0140 Connection Diagram

24 Vdc 24 Vdc

Description

The M4500, M4600 and M4700 Indicator Panels are intended
for status indication of any process providing on/off outputs.
The panels contain 6, 8 or 20 channels, respectively.

An input through a dry contact will light the corresponding LED.

These panels are an ideal solution for local or remote indication
of the output signals from, for example, a PLC or from alarm
monitors such as the M1000. The 20 channel M4700 is available
in a version with built-in alarm and siren relays.

M4780 is a versatile 20 channel indicator panel which can
be used for monitoring of dry contacts and signal states
transmitted through a common 2-wire RS485 communication
bus using the MODBUS-RTU protocol. This unit is a
combination of a traditional indicator panel with dry contact
inputs and a MODBUS indicator panel. M4780 can also work
as an alarm monitor using two internal relays for group alarms
and control of an external siren. An internal siren for local use
is built-in. Via the MODBUS-RTU a PLC can read the state of
the LEDs and the inputs on the M4780. This feature makes
the M4780 a cost effective 20 channel digital input device with
indications in PLC systems.

Features & Benefits

FEATURES BENEFITS

Clamping fittings and
plug-in terminals blocks

RS485 communication
available

Alarm and siren relay
available

Easy installation

Remote display for alarm panels or PLCs

Audible remote alarm

Specifications

Voltage Supply 24 Vdc ±25%
Inputs M4500: 6; M4600: 8; M4700: 20
Extra Push-Button M4500/M4600: 250 Vac, 0.5 A
Alar m & Siren Rela ys M4700: Normally open (NO) contact
Contact Data M4700: AC=250 V, 1.2 A, 125 VA

Operating Temp. –10 to +70°C
EMC CE according to EN50081-1, EN50082-1,

EN50081-2, EN50082-2

Burn-in 50 hours before final test
Weight M4500 0.2 kg, M4500 230 Vac supply, 0.3 kg

M4600 0.3 kg, M4500 110 V and 230 Vac supply, 0.4 kg
M4700.01xx 0.5 kg (with 230 Vac supply, 0.7 kg)
Dimensions M4500: H 72 (2.8”); W 72 (2.8”); D 67 mm (2.6”)
M4600: H 96 (3.8”); W 96 (3.8”); D 67 mm (2.6”)
M4700: H 144 (5.7”); W 144 (5.7”); D 67 mm (2.6”)
Panel Cut-out M4500: H 68 (2.7”); W 68 (2.7”)
M4600: H 92 (3.6”); W 92 (3.6”)
M4700: H 138 (5.4”); W 138 (5.4”)

Protection Degree
at Front IP31

DC=30 V, 1 A, 30 W

© 2013 Littelfuse Protection Relays & Controls
www.littelfuse.com/m4500 www.littelfuse.com/m4600 www.littelfuse.com/m4700

Rev: 4-A-050313