Commissioning
Multi
MAXX
HD
36
PR-2007-0350-GB • Subject to modifications • R2-04/2016
10.6
Checking data connection
10.6.1 Checking control cables
The data/commands are communicated via control cables. Depending on the unit
equipment, these should be connected or checked in accordance with the wiring dia-
gram affixed to the unit connection box (see “Connecting control cables” on page 40).
The yellow LED on the unit PCB signals an active supply voltage to the
electronics.
•
If the LED is off, check the 230 V / 400 V supply voltage on the unit.
10.6.2 Checking data connection
Data are communicated via a 2/4-core data cable. This should be connected or
checked in accordance with the wiring diagram affixed to the unit connection box (see
“Carrying out bus connection” on page 42).
hree LEDs on the unit printed circuit board signal the operating status of the unit
DANGER OF ELECTRICAL CURRENT!
Before correcting an error in the data connection, power the entire system down.
Ensure that the unit is secured against being switched back on at an appropriate
point of the on-site power supply.
MATRIX
200x
300x
400x
400x+IO
9
9
MATRIX
200x
300x
400x
400x+IO
9
9
9
LED
LED
status
Operating status
Action/remedy
Yellow
On
Supply voltage to electronics OK
–
Off
Supply voltage to electronics not OK
Check supply voltage on unit
Green
On
Operating system and control software have
been started and are working properly
–
Off
Software or processor defective
Replace PCB
Red
Continuously on Error in electronics
Power PCB down and wait for a short
time. Power the PCB on. If the error
message is still present, replace the
PCB.
Flashes
Data bus interruption
Check the connection of the data
cables and the setting of the
terminating resistors on all units.
Tab.: 10-1:
Operating status and remedies for errors in the data connections
(MATRIX 300x/400x)
