M6DXAT
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage across the terminal
7– 8 with a multimeter.
3) Input: Check that the input signal is within 0 – 100% of
the full-scale.
If the thermocouple or its extension wires are broken, the
output goes over 100% (below 0% with downscale protec-
tion) due to the burnout function. Confirm the status in-
dicator LED pattern and check leadwires in such a case.
4) Alarm operations: Check the alarm operations referring
to the figure below.
5) Output load: Check that the output load is 250V AC/
500VA or 125V DC/60W. For maximum relay life with
inductive load, external protection is recommended.
LED FUNCTIONS
■
STATUS INDICATOR LED
The M6DXAT is provided with a status indicator LED
which flashes in different patterns indicating various op-
erating status.
The following figure indicates typical patterns.
■
ALARM MONITOR LED
The M6DXAT is provided with an alarm monitor LED
which flashes in different patterns indicating various alarm
status.
The following figure indicates typical patterns.
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes.
• H Setpoint
Increase the input signal from a value lower than the set-
point and check that the relay trips at the H setpoint within
the setpoint accuracy described in the data sheet.
• L Setpoint
Decrease the input signal from a value higher than the set-
point and check that the relay trips at the L setpoint within
the setpoint accuracy described in the data sheet.
When the setpoints are shifted, recalibrate the unit using
the PC Configurator Software (model: M6CFG).
LIGHTNING SURGE PROTECTION
In order to protect the unit from lightning surges entering
through power supply cables, use of appropriate lightning
surge protectors are recommended. Please contact M-Sys-
tem.
0
50
100
Input
(%)
▲
Setpoint
Output
(3–4)ON
(3–2)ON
• Setting Example
Hi alarm (coil energized at alarm) or
Lo alarm (coil de-energized at alarm)
Alarm Trip Operation
Terminal No. in parentheses
Trip operation in power failure
: Terminals 3 – 4 turn ON.
TRANSMITTER STATUS
LED ON-OFF PATTERNS
Normal operating mode
Abnormal operating mode
Burnout mode
ON
OFF
80 milliseconds
Power ON delay
ALARM STATUS
ON
OFF
LED ON-OFF PATTERNS
Alarm ON delay
Alarm OFF
Alarm ON
160 millisec.
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
SENTRONIC
AG
