M5XADS
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-2777 P. 4 / 4
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Check DIP switch setting.
3) Power input voltage: Check voltage across the terminal
7 – 8 with a multimeter.
4) Input: Check that the input signal is within 0 – 100% of
the full-scale.
5) Output: Check that the load resistance meets the de-
scribed specifications.
POWER INDICATOR LED
The transmitter is provided with a power indicator LED
which blinks in different patterns indicating various oper-
ating status.
The following figure indicates typical patterns.
LED ON OFF PATTERNS
TRANSMITTER STATUS
Downloading the setting
Range setting
Fine adjusting
Supplying a fixed output
Normal
Abnormal Operation
(corruption of configuration data)
80ms
EQUATION
X
0
= K
0
{K
1
(X
1
+ A
1
) + K
2
(X
2
+ A
2
)} + A
0
X
1
- X
2
: input signal (%) -2 - +102 %
K
0
- K
2
: gain (no units) ±29.999
A
0
- A
2
: bias (%) ±299.99 %
Factory default setting
K
0
= 1, K
1
= 1, K
2
= 1, A
0
= 0%, A
1
= 0%, A
2
= 0%
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes. Apply the input
signals which should lead the calculated results as 0%, 25%,
50%, 75% and 100%. Check that the output signal for the
respective input signal remains within accuracy described
in the data sheet.
When the output is out of tolerance, recalibrate the unit us-
ing the PC Configurator Software (model: M5CFG).
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.
