10
Technical data
INPUTS
SURVEY OF INPUTS
Input
Used for
INP1
x1 (process value)
INP2
Heating current, ext. set-point or
ext. correction, position feedback
Yp, 2nd process value x2, ext.
correcting variable Y.E, input for
additional limit signalling abd
indication
INP3
as for INP2
di1
Operation disabled, controller off,
disabled auto/manual key, reset
of stored alarms,
switch-over to …
second set-point SP.2, external
set-point SP.E, fixed correcting
variable Y2, fixed correcting
variable Y.E, manual operation,
manual operation, parameter set
1
i
2
di2
di3 (option)
PROCESS VALUE INPUT INP1
Resolution:
> 14 bits
Decimal point:
0 to 3 digits behind the
decimal point
Dig. input filter:
adjustable 0,000...9999 s
Scanning cycle:
100 ms
Measured value
correction:
2-point or offset correction
Thermocouples
r
Table 1 (page 67 )
Input resistance:
≥
1 M
Ω
Effect of source resistance:
1
µ
V/
Ω
Cold-junction compensation
Maximal additional error:
±
0,5 K
Sensor break monitoring
Sensor current:
≤
1
µ
A
Configurable output action
Resistance thermometer
r
Table 2 (page 67 )
Connection:
3-wire
Lead resistance:
max. 30 Ohm
Input circuit monitor:
break and short circuit
Special measuring range
BlueControl (engineering tool) can be used to
match the input to sensor KTY 11-6
(characteristic is stored in the controller).
Physical measuring range:
0...4500 Ohm
Linearization segments
16
Current and voltage signals
r
Table 3 (page 67 )
Span start, end of span: anywhere within measuring
range
Scaling:
selectable -1999...9999
Linearization:
16 segments, adaptable
with BlueControl
Decimal point:
adjustable
Input circuit monitor:
12,5% below span start
(2mA, 1V)
SUPPLEMENTARY INPUT INP2
Resolution:
> 14 bits
Scanning cycle:
100 ms
Heating current measurement
via current transformer (
→
Accessory
equipment)
Measuring range: 0...50mA AC
Scaling:
adjustable -1999...0,000...9999 A
Current measuring range
Technical data as for INP1
Potentiometer
r
Table 2 (page 67 )
Technical data
Operating manual MIR-491
63
Содержание MIR-491
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