Operating And Fault Displays; Boiler Displays; Remote Fault Indicator; Leds On Mcm10 Module - Buderus MCM10 Instrucciones De Instalación

5

Operating and fault displays

5 Operating and fault displays
Operating state and faults can be indicated in 4 different
ways:

• Boiler displays

• Remote fault indicator

• Via the LEDs on the MCM10 module
• Via the RC35 programming unit
5.1 Boiler displays
For further details regarding the boiler operating and fault
displays, see the boiler documentation.
5.2 Remote fault indicator
A fault indicator, for example, can be connected to the
zero volt fault contact (
The remote fault indicator is also issued via an LED at the
MCM10 ( tab. 10).
5.3

LEDs on MCM10 module

Generally, 3 different states of the overall system can be
identified:
• Configuration (during commissioning and after a reset)

• Standard operation

• Fault.
LED Off
No. Diagnosis Remedy
1 Fault: no power Check the power
supply. supply.
Replace
MCM10 module.
2 Operation: pump
OFF.
Tab. 10 Operating and fault displays
68
chapter 3.2.3, page 66).
On
Diagnosis
Operation: standard
operation.
Operation: pump
ON.
Fault: pump will not
start although the LED
is ON, as the fuse for
pump output has
blown.
Subject to the state of the overall system, the LEDs on the
MCM10 module ( fig. 13) provide indications about the
operating and fault state of individual components, and
thereby enable specific troubleshooting (
page 68).
2 4
1 3
Fig. 13 Operating and fault indications via the LEDs
1 Green Power ON
2 Green Heating circuit pump (secondary circuit)
3 Red Switching contact for remote fault indicator
230 V AC
4 Green Communication between MCM10s
5 Green Boiler 1
6 Green Boiler 2
7 Green Boiler 3
8 Green Boiler 4
Flashing
Remedy Diagnosis
–
–
Replace fuse
( chapter 5.5,
page 71).
tab. 10,
5 6 7 8
6 720 616 691-03.1TD
Remedy
MCM10