SECTION 3
Relays
The 3 relays can be assigned to various functions depending on the application, as shown
below:
Hysteresis is fully adjustable, so for most functions it is necessary to enter both "set" and
"reset" values.
The relay state under normal operating conditions is defined as:-
Normally energised. De-energise when "set" value is reached.
Normally de-energised. Energise when "set" value is reached.
"Failsafe" functions are detailed in Pr.10.1 – 10.5.
The relays can be programmed to give both high and low alarm or control levels.
e.g. High alarm
Set: 2.0m Low Alarm Reset: 0.5m
Reset 1.8m Set 0.2m
The system will automatically configure itself as high or low alarm depending on which of
the set and reset entries has the higher value.
Note that in distance measurement mode set by Pr 1.0, the highest value is furthest from the
transducer.
The relays are controlled using parameter section 8.0 as follows: -
No
8.0 Edit
Relays No
8.1 Rly 1 Options
(*
1
)
8.2 Rly 2 Options
(*
2
)
8.3 Rly 3 Options
(*
3
)
ENT
Yes
*1
See Pr.8.1 Relay 1 Options default table below
*2
See Pr.8.2 Relay 2 Options default table on Page 25
*3
See Pr.8.3 Relay 3 Options default table on Page 25
Pr.8.1
Rly1 Options Relay 1 Options
The default setting for Rly1 Options is dependent on the application as shown in the
following table: -
Distance Level Volume Pump OCM Differential
Default
Off Norm-
Energised
Norm-
Energised
Norm-
DeEnerg
Flow
Alarm
Diff
Control
Ref: MINIFLEX LR MANUAL Rev. 0 24
To Next Page
Loading...
Need help?
General
