6 signal functions of 4xanalog input ±10, Signal functions of 4xanalog input ±10 – Lenze EPM−T9XX Modular system User Manual
Page 309
Parameterising analog modules
Signal functions of 4xanalog input ±10
Parameter setting via system bus (CAN) / CANopen
12.3
12.3.6
L
12.3−11
EDSPM−TXXX−9.0−11/2009
Paramete
r bytes
2/3/4/5
Tolerance
2)
Format
1)
Signal range
Signal function
5D
h
Current
measurement
4 ... 20
mA
4.00
0
{0.01 mA}
{1
dec
}
20.00
16000
S7
Two’s
complement
±0.05 % of
the final value
Min.
Limit
values
Max.
0 mA
−4000
dec
+22.96 mA
+18960
dec
FF
h
Analog input deactivated
1)
Format of the input data (
¶ 12.3−7).
2)
Tolerance of the input range at an ambient temperature of 25 °C and 15 conversions/s. Sensor inaccuracies were
not considered.
3)
Transition resistances on contacts and cable resistances were not taken into consideration.
4)
Cold spot compensation must be effected externally.
5)
The cold spot must be compensated internally. The temperature of the terminal is taken into consideration.
Connect the conductors of the thermoelements directly to the terminal; if necessary, operate with thermoelement
extension cables.
Lenze setting of the signal function in parameter bytes 2 and 3 or 4 and 5: 3B
h
12.3.6
Signal functions of 4xanalog input ±10
)
Note!
l
Short−circuit unused inputs (connect positive and negative
terminals) or deactivate them by assigning the function number
FF
h
.
l
In the event of an overflow or underflow, wrong values are
output. Strong signal jumps with sign reversal may occur.
I/O system IP20 multiplies measured values with decimal positions and without
normalisation by a factor and transfers them as integers to the bus. To output the
decimal positions, divide the measured values by the same factor.
Example:
Measuring task: Voltage measurement with signal function 28
h
. Measured value = 8.5 V.
1. I/O system IP20 converts the measured value into an integer:
8.5 [V] × 10 = 85
2. Reconvert the measured value to output it with decimal positions:
85 [V]
10
+ 8.5 V
Paramete
r bytes
2/3/4/5
Signal function
Signal range
Format
1)
Tolerance
00
h
11
Parameter data in module are not overwritten
28
h
Voltage
measurement
±10 V
−10.00
−27648
{0.01V}
{1
dec
}
+10.00
27648
S7
Two’s
complement
±0.1 %
2)
±0.2 %
3)
Min.
Limit
values
Max.
−11.76 V
−32512
dec
+11.76 V
32511
dec