Sensor Error Detection Limits; Signal Conditioning Limits; Error Indications; Connections - PR electronics PREASY 422 Bedienungsanleitung

Sensor error detection limits:

Sensor error detection (SE.BR, SE.SH):
Input Range
CURR Loop break (4...20 mA)
POTM All, SE.BR on all 3-wire
Ω
0...800
LIN.R
0...10 kΩ
TC
TEMP
RTD: 2-, 3- and 4-wire
No SE.SH for Pt10, Pt20 and Pt50

Signal conditioning limits:

Outside range readout (IN.LO, IN.HI):
If the valid range of the A/D converter or the polynomial is exceeded.
Input Range
0...1 V / 0.2...1 V
VOLT
0...2.5 / 0.5...2.5 / 0...5 V / 1...5 V /
0...10 V / 2...10 V
CURR 0...20 mA / 4...20 mA
Ω
0...800
LIN.R
0...10 kΩ
POTM Min. readout = 0%, Max. readout = 100%
TEMP TC / RTD

Error indications:

Readout at hardware error
Error search
Test of internal CJC sensor
Checksum test of the configuration in FLASH
Communications test 4501 / 4222
Check that input signal matches input configuration
Check that saved configuration in 4501 matches module
! All error indications flash once per second. The help text explains the error.
1) The error is reset by switching off and then switching on the supply voltage to the module.
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Readout Limit
SE.BR <= 3.6 mA; > = 21 mA
Ω
SE.BR > ca. 126 k
Ω
SE.BR > ca. 875
Ω
SE.BR > ca. 11 k
Ω
SE.BR > ca. 750 k / (1,25 V)
Ω
SE.BR > ca. 15 k
Ω
SE.SH < ca. 15
Readout Limit
IN.LO < -25 mV
IN.HI > 1.2 V
IN.LO < -25 mV
IN.HI > 12 V
IN.LO < -1.05 mA
IN.HI > 25.05 mA
< 0 Ω
IN.LO
> 1075 Ω
IN.HI
< 0 Ω
IN.LO
IN.HI < 110 kΩ
IN.LO < -0.5 %
IN.HI > 100.5 %
IN.LO < temperature range -2°C
IN.HI > temperature range +2°C
Readout Cause
CJC sensor defect or
CJ.ER
temperature outside range
FL.ER Error in FLASH
NO.CO Connection error
IN.ER 1) Error levels on input
TY.ER Configuration is not 4222

CONNECTIONS:

Supply:
31 32 33
Inputs:
RTD, 2-wire RTD, 3- / 4-wire
41 42 43 44 41 42 43
Resistance,
Potentiometer
3- / 4-wire
41 42 43 44 41 42 43
Voltage
41 42 43 44
+
-
Outputs:
TTL NPN
21 22 23 24 21 22 23 24
+
+5 V Gnd. Gnd.
TC Resistance, 2-wire
44 41 42 43 44 41 42
+ -
2-wire transmitter Current
44
41 42 43 44 41 42
- + -
Tx
PNP
21 22 23 24
Gnd. +24 V
43 44
43 44
+
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