Operation
4.3 Analyzer Functions
LDS 6
56
Operating Instructions, 01/2009, A5E00295894-05
71 Relay Outputs
71 Relay Outputs Ch1 NH
3
...Continue
R4 Control
R3 Transmission
R2 Maintenance Request
R1 Fault
X
You can use this function to configure relay outputs. The basic version contains six freely
configurable relays per channel that can be used for signalling (maximum 24 V/1 A). Each relay
can be assigned one of the functions listed in Table Op.4. The relay is normally energized and
becomes de-energized upon an alarm.
Up to four relays can be configured in one menu. By pressing the fifth (last) soft key
("...Continue") you can switch to further menus - and thus to further relays.
Note
Every change to the configuration of the relay outputs should always be stored in the user
data memory using function 75. If this is not done, there is a risk that a previous (undesired)
configuration is called when selecting "Load user data".
Table 4- 8
Op.4 Relay Assignments
Function
Remarks
Fault
Signaling for faults specified in Operation chapter.
Maintenance Request
Signaling for Maintenance Requests specified in Operation chapter.
Transmission Limit Alarm (TR) Upward or downward violation of transmission limit (see also
function 52).
Function Control (CTRL)
Signaling when analyzer is in start-up mode or in service mode
(coded).
Limit Alarm Primary (LIM)
Upward or downward violation of limit for the primary gas/component
(see also function 51).
Limit Alarm Secondary (LIM)
Upward or downward violation of limit for the secondary
gas/component - if applicable (see also function 51).
Stored Value (STO)
Relay may be de-energized simultaneously with fault, transmission
alarm or function control depending on the configuration of function
77.
72 Binary Inputs
72 Binary Inputs Ch1 NH
3
...Continue
X
B4 Ext. Maint.Req. Temp.
B3 Ext. Fault Purging
B2 Ext. Fault Prs.
B1 Ext. Fault Temp.
You can freely configure the six floating binary inputs ["0" = 0 V (0...4.5 V); "1" = 24 V
(13...33 V)] available in the basic version.
You can assign one of the control functions listed in Table Op. 5 to each input. The binary input
should normally be energized. De-energizing the binary input will result in signalling of a fault.
Up to four relays can be configured in one menu. Switching to further menus - and thus to further
relays - is always carried out by pressing the fifth (last) soft key ("...Continue").