EM-7804-N Rev.2 P. 1 / 2
INSTRUCTION MANUAL
DISCRETE INPUT EXTENSION MODULE, 8 points
(LONWORKS)MODEL R7L-EA8
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Discrete input extension module........................................(1)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
POINTS OF CAUTION
■POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
24V AC rating: 24V ±10%, 50/60 Hz, approx. 15mA
24V DC rating: 24V ±10%, approx. 10mA
■GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
■ENVIRONMENT
• Indoor use.
• When heavy dust or metal particles are present in the
air, install the unit inside proper housing with sufficient
ventilation.
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +55°C
(14 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
■WIRING
• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).
• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■FUNCTIONAL BLOCK SETTING
• Functional blocks regarding the extension module are set
by the basic module. Refer to the instruction manual for
the basic module for detailed information.
■AND ....
• The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
COMPONENT IDENTIFICATION
Discrete Input Status Indicator LED
01234567
Input Terminals
786910
23145
■DISCRETE INPUT STATUS INDICATOR LED
Used to show discrete input signal status.
ON : LED ON
OFF : LED OFF
■INPUT TERMINAL ASSIGNMENT
6
NC
7
X1
8
X3
1
COM
2
X0
3
X2
9
X5
4
X4
10
X7
5
X6
NO. ID FUNCTION NO. ID FUNCTION
1 COM Common 6 NC No Connection
2 X0 Input 0 7 X1 Input 1
3 X2 Input 2 8 X3 Input 3
4 X4 Input 4 9 X5 Input 5
5 X6 Input 6 10 X7 Input 7
CONNECTING THE EXTENSION MODULE
1) Remove the extension connector cover located at the side
of the basic module.
2) Connect the extension module.
3) Mount the combined module on a DIN rail.
056 222 38 18 mailbox@sentronic.com www.sentronic.com
SENTRONIC AG
