Lenze EPM-T1 Series - Signal Functions 4 Xanalog Input 20 Ma

Parameterising analog modules
Signal functions 4xanalog input ±20mA
12
Parameter setting via system bus (CAN) / CANopen
12.3
12.3.7
L
12.3−12
EDSPM−TXXX−9.0−11/2009
Paramete
r bytes
2/3/4/5
ToleranceFormat
1)
Signal rangeSignal function
3Bh Voltage
measurement
±10 V
−10.00
−16384
{0.01V}
{1
dec
}
+10.00
16384
S5
Two’s
complement
±0.1 %
2)
±0.2 %
3)
Min. Limit
values
Max.
−12.50 V
−20480
dec
+12.50 V
20480
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.
3)
Tolerance of the input range across the entire admissible temperature range.
Lenze setting of the signal function in parameter bytes 2 and 3 or 4 and 5: 3B
h
12.3.7 Signal functions 4xanalog input ±20mA
) 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: Current measurement with signal function 2C
h
. Measured value = 15.5 mA.
1. I/O system IP20 converts the measured value into an integer:
15.5 [V] × 10 = 155
2. Reconvert the measured value to output it with decimal positions:
155[mA]
10
 + 15.5mA
Paramete
r bytes
2/3/4/5
Signal function Signal range Format
1)
Tolerance
00
h
12 Parameter data in module are not overwritten
2C
h
Current
measurement
±20 mA
−20.00
−27648
{0.01 mA}
{1
dec
}
+20.00
27648
S7
Two’s
complement
±0.1 %
2)
±0.2 %
3)
Min. Limit
values
Max.
−23.52 mA
−32512
dec
+23.52 mA
+32511
dec
2D
h
Current
measurement
4 ... 20
mA
4.00
0
{0.01 mA}
{1
dec
}
20.00
27648
S7
Two’s
complement
±0.2 %
2)
±0.5 %
3)
Min. Limit
values
Max.
1.185 mA
−4864
dec
+22.81 mA
+32511
dec