Input / Output Ports Options - Satec expertmeter EM720 Installation Manual

Input / Output ports options

O n b o ard D i gi t al Inp uts
EM720
The is equipped with four fast Dry contact detector – Digital Inputs
4DI
The unit is terminated with a nine-pin width pluggable terminal block which connects eight terminals
only – Auxiliary Terminal Block as described below
Four optically isolated digital inputs are provided for status monitoring and external synchronization of
power demand period and time. Dry contacts may be connected to these inputs, as shown in
Appendix: Technical Specifications
For ratings, see
12
TB P N
IN UMBER
1
2
3
4
5
6
7
8
9
T a b l e 2 : A ux i l i a r y T e r m i n a l B l o c k
.
F i g u r e 1 3 : D i g i t a l I n p ut C o n n e c t i o n
4DI
unit.
S
IGNAL
D 1
IN
C
OMMON
D 2
IN
C
OMMON
D 3
IN
C
OMMON
D 4
IN
C
OMMON
N C
OT ONNECTED
Figures 14
.
Chapter 2 Installation