Troubleshooting - Siemens RMB795B Basic Documentation

Configuration example:
Smoke extraction
extract air
Configuration example:
Smoke extraction
supply air and extract air
Priority is urgent
Fault status messages
82 / 144
Siemens
Building Technologies
Smoke extraction with extract air for the rooms in room groups 1 and 2 is triggered
via the signal from digital input X2:
N.X1 N.X2 N.X3
Digital
x Y x Y x Y
x x x x x x x x
SA EA
Enable
Setpoint prio
Relay
2
1
Q Q
Smoke extraction with supply and extract air for the rooms in room groups 1 and 2
is triggered via the signal from digital input X2:
N.X1 N.X2 N.X3
Digital
x Y x Y x Y
x x x x x x x x
SA EA
Enable
Setpoint prio
Relay
2
1
Q Q

8.11.3 Troubleshooting

Fault priority is always "urgent". Smoke extraction must always be acknowledged.
When the relevant external contact is de-energized so that the signal at digital input
Xx is no longer present, the room group(s) will resume normal automatic operation
according to the time program.
No. Text
3880- Smoke extraction
3889
Central control unit RMB795B
Function block: "Room group"
N.X4 N.X5 N.X6
x Y x Y x Y
x x x x x
Raumgruppe 2
N.X4 N.X5 N.X6
x Y x Y x Y
x x x x x
Raumgruppe 2
Effect
Urgent message; must be acknowledged.
x x x
SA EA
Enable
Setpoint prio
Relay
1 2
Q Q
x x x
SA EA
Enable
Setpoint prio
Relay
1 2
Q Q
CE1P3122en
18.01.2012