GESTRA LRR 1-52 Original Installation & Operating Manual

64 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00
System malfunctions of the URB 55
Indication of system malfunctions in the alarm and error list using error codes
Error codes for the LRR 1-52/LRR 1-53 conductivity controllers
Error code Possible errors Corrective action
LRR Offline No power supply Check data line (terminals 11 + 12)
LRR NodeID Incorrect configuration Set node ID (DIP 2) to ON, as there are two controllers
A.001 Above MAX switchpoint
-
A.002 Below MIN switchpoint
-
E.001
Below temperature sensor measur-
ing range
Check Pt100 temperature sensor and replace if
necessary
Check electrical connection
E.001
Above temperature sensor measur-
ing range
Check Pt100 temperature sensor and replace if
necessary
Check electrical connection
or
Switch off temperature compensation
E.005
Faulty conductivity electrode,
measuring voltage < 0.5V DC
Check conductivity electrode and replace if necessary
Check electrical connection
Faulty conductivity transmitter,
measuring current < 4mA
Check conductivity transmitter and replace if necessary
Check electrical connection
E.006
Faulty conductivity electrode,
measuring voltage > 7V DC
Check conductivity electrode and replace if necessary
Check electrical connection
Faulty conductivity transmitter,
measuring current > 20mA
E.011
Calibration points implausible/
wrong way round
Valve: CLOSED (0%) > OPEN
(100%)
Recalibrate potentiometer in continuous blowdown
valve
E.012
Lower and upper ends of measur-
ing range changed round
Reset the measuring range
E.013
Switchpoints implausible
MIN > MAX
Reset the switchpoints
All error codes from E.001 to E.027 not listed here are available as reserves
Fig. 24

GESTRA LRR 1-52 Specifications

General

Brand	GESTRA
Model	LRR 1-52
Category	Controller
Language	English