857-401
3
196
JUMPFLEX® Transducers
Isolation amplifier, configurable with digital output
OUT+
GND 2
OUT
U,I
Us+
GND 3
POWER
IN+
GND 1
DO
GND 3
5
6
IN
U,I
1
2
DO
3
4
7
8
<_________ 94 mm/3.68 in _________> 6 mm/0.23 in
<_________ 96 mm/3.76 in _________>
____________
_>
_>
Short description:
The software-configurable 857-401 Isolation Amplifier is used to convert, am-
plify, filter and electrically isolate analog standard signals. The device has a 3-
way isolation with a 2.5kV test voltage. DIP switches accessible from the side
can be used to configure the signals in both input and output.
In addition to standard signals, bipolar (± 10V, ± 20mA) and 0 to 30V signals
can also be set on the input side. The analog output supports standard unipolar
signals. In addition, the devices can be configured using FDT/DTM software.
The software offers additional setting options such as special input and output
signal combinations with intermediate values or inversion of the analog output.
Measurement range switching is calibrated. A digital switching output is avai-
lable that can also be configured using software.
The device is supplied with 24VDC, which can be commoned using lateral
push-in type jumper bars in a quick and cost effective way. A green LED on the
front panel indicates normal operation. The isolation amplifier meets the re-
quirements for safe isolation of input, output and supply circuits with 2.5kV test
voltage according to EN 61140.
Description Item No. Pack.
Unit
Isolation amplifier, configurable
with digital output
857-401 1
Accessories
Configuration software - 759-370 FDT Frame Application
- DTM (Device Tool Manager)
Download: see www.wago.com
WAGO USB Service Cable 750-923
General accessories see pages 222 - 223
Approvals
Shipbuilding g (pending)
4 r ANSI/ISA 12.12.01 Class I Div2 ABCD T4
Conformity marking 1
General Specifications
Dimensions (mm) W x H x L 6 x 96 x 94
Height from upper-edge of DIN 35 rail
Wire connection CAGE CLAMP®S
Cross sections solid: 0.08 mm² ... 2.5 mm² /
AWG 28 ... 12
fine-stranded: 0.34 mm² ... 2.5 mm² /
AWG 22 ... 12
Stripped lengths 9 ... 10 mm / 0.37 in
Technical Data
Configuration DIP switch or configuration software
Input signal -10 ... +10 V, -20 ... +20 mA, 0 ... +30 V
Max. input signal (31.2 V (UIN) 100 mA (IIN)
Input resistance d 200 Ω (I input)
> 100 kΩ (U input)
Output signal 0 ... 20 mA, 4 ... 20 mA,
0 ... 10 V, 2 ... 10 V, 0... 5 V, 1 ... 5 V,
0 ... 10 mA, 2 ... 10 mA
Load impedance d 600 Ω (I output)
t 2 kΩ (U output)
Step response d 8 ms
Voltage supply VN24 V DC
Supply voltage range 16.8 V ... 31.2 V
Current input at 24 V DC < 40 mA
Transmission error < 0.1 % of upper range value
Temperature coefficient 0.01 % /K
Min. measuring span 1 V, 2 mA (configurable)
Output - Digital
Max. switching voltage Supply voltage applied
Max. continuous current 500 mA (up to 60 °C)
100 mA (60 °C ... 70 °C)
Test voltage
(input/output/supply) 2.5 kV AC, 50 Hz, 1 min.
Ambient operating temperature -25 °C ... +70 °C
Storage temperature -40 °C ... +85 °C
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes 22.04.2010
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Phone: +49(0)571/887-0 E-Mail: info@wago.com
Fax: +49(0)571/887-169 www.wago.com
3
DIP Switch Adjustability
▯ = ON
Input Signal Start Value
DIP S1
1 234567VmA234567VmA
Voltage 0 0 ● 5.5 11
●Current ● -10 -20 ● ● 6 12
● -9.5 -19 ● ● 6.5 13
● ● -9 -18 ● ● ● 7 14
● -8.5 -17 ● ● 7.5 15
● ● -8 -16 ● ● ● 8 16
● ● -7.5 -15 ● ● ● 8.5 17
● ● ● -7 -14 ● ● ● ● 9 18
● -6.5 -13 ● ● 9.5 19
● ● -6 -12 ● ● ● 10 20
● ● -5.5 -11 ● ● ● 10.5
● ● ● -5 -10 ● ● ● ● 11
● ● -4.5 -9 ● ● ● 11.5
●●● -4-8●●●●12
● ● ● -3.5 -7 ● ● ● ● 13
●●●● -3-6●●●● ●14
● -2.5 -5 ● ● 15
● ● -2 -4 ● ● ● 16
● ● -1.5 -3 ● ● ● 17
●● ● -1-2●● ●●18
● ● -0.5 -1 ● ● ● 19
●●●00●●●●20
● ● ● 0.5 1 ● ● ● ● 21
●●● ● 12●●● ●●22
●● 1.53 ●●●23
● ●● 24● ●●●24
● ● ● 2.5 5 ● ● ● ● 25
●● ●● 36●● ●●●26
●●● 3.57 ●●●●27
● ●●● 48● ●●●●28
●●●● 4.59 ●●●●●29
●●●●● 510●●●●●●30
End Value
DIP S1 DIP S2 DIP S1 DIP S2
8910123VmA8910123VmA
10 20 ● 5.5 11
● -10 -20 ● ● 6 12
● -9.5 -19 ● ● 6.5 13
● ● -9 -18 ● ● ● 7 14
● -8.5 -17 ● ● 7.5 15
● ● -8 -16 ● ● ● 8 16
● ● -7.5 -15 ● ● ● 8.5 17
● ● ● -7 -14 ● ● ● ● 9 18
● -6.5 -13 ● ● 9.5 19
● ● -6 -12 ● ● ● 10 20
● ● -5.5 -11 ● ● ● 10.5
● ● ● -5 -10 ● ● ● ● 11
● ● -4.5 -9 ● ● ● 11.5
●●● -4-8●●●●12
● ● ● -3.5 -7 ● ● ● ● 13
●●●● -3-6●●●● ●14
● -2.5 -5 ● ● 15
● ● -2 -4 ● ● ● 16
● ● -1.5 -3 ● ● ● 17
●● ● -1-2●● ●●18
● ● -0.5 -1 ● ● ● 19
●●●00●●●●20
● ● ● 0.5 1 ● ● ● ● 21
●●● ● 12●●● ●●22
●● 1.53 ●●●23
● ●● 24● ●●●24
● ● ● 2.5 5 ● ● ● ● 25
●● ●● 36●● ●●●26
●●● 3.57 ●●●●27
● ●●● 48● ●●●●28
●●●● 4.59 ●●●●●29
●●●●● 510●●●●●●30
Output Signal Range Measuring Range
Underflow
Measuring Range
Overflow
Measuring Range Overflow/
Measuring Range Underflow
Signalisation*
DO
456 78 9 10
0 … 20 mA Lower limit of output range
Lower limit of output range
Lower limit of output range
Lower limit of output range
+2.5% -5% ●
DO Us+ switched not active
●4 … 20 mA
●
DO GND switched ● active
●0 … 10 mA
●
+2.5%
●●2 … 10 mA
●●
●0 … 10 V
●● 2 … 10 V
●●0 … 5 V
●●● 1 … 5 V
857-401
Default Settings
In delivery status all DIP switches are in the position “OFF“.
Input
- Input signal: Voltage
- Start value: 0 V
- End value: 10 V
Output
- Output signal: Current
- Start value: 0 mA
- End value: 20 mA
- Measuring range underflow: 0 mA
- Measuring range overflow: 20.5 mA
Digital output
- not active
* related to input signal
Upper limit of output range
Upper limit of output range
Upper limit of output range
Upper limit of output range
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes 22.04.2010
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Phone: +49(0)571/887-0 E-Mail: info@wago.com
Fax: +49(0)571/887-169 www.wago.com
