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9970-0966/0857-0400
GB
JUMPFLEX Series 857
Isolation amplifier, configurable
857-400
Before installation and operation, please read the following instructions thoroughly and carefully.
1. Safety information
1.1 General information
The following points are to be observed:
- the applicable laws, standards and regulations
- the state of the art at the time of installation
- the operating instructions
- the engineering regulations
- the fact that operating instructions can only mention general regulations and that these must be
observed
- observe the max. admissible conductor cross-sections, stripped lengths and only use original
accessories
- insert the conductor up to the stop
Before start up, please check the device for any damage that may have occurred during transport. The device
must not be operated in case of mechanical damage. Read the operating instructions carefully and observe
both the technical information and the applicable regulations of your country.
The devices described in these instruction leaflets must only be installed by a qualified electrician and must
only be installed in electrical switchgear or in sealed enclosures.
Improper use or failure to follow this application note will render the warranty or guarantee null and void.
The devices must only be installed in dry indoor areas.
Do not install the devices on or in the vicinity of easily inflammable materials
2. Short description
The configurable isolation amplifier is used to convert, amplify, filter and electrically isolate analog standard
signals. The device has a 3-way isolation with a test voltage of 2.5kV.
On the input and output side, the following signals can be configured via DIP switches that are accessible from
the side of the housing: 0...10V, 2...10V, 0...20mA, 4...20mA, 0...5V and 1...5V.
The device is supplied with 24VDC, which can be commoned using lateral push-in type jumper bars in a quick
and cost effective way.
3. Installation
Cables must only be connected with the power off!
Caution: Take protective measures against electrostatic discharge (ESD) when operating the
modules.
The devices are snapped onto the
EN60715
rail without using any tools. For example, a screwdriver can be
used to unlock the snap-in mounting foot and remove the device from the carrier rail.
Potentials can be commoned using 859 Series 2- to 10-way push-in type jumper bars (see accessories). The
jumpers must be inserted prior to connecting the cables so that easy installation is possible. Push down the
jumpers until fully inserted (see installation notes).
If the modules are snapped on in an alternating order, istall a seperator plate (item no. 209-191) for safe
separation between two adjacent terminal blocks.
End stops (WAGO
249-116
) must be mounted at the ends of a module assembly.
Observe the max. admissible conductor cross-sections of the signal and power cables.
4. Zero/span adjustment
Always use an insulated screwdriver when performing a zero/span adjustment (e.g. WAGO 210-619)
The zero/span potentiometers are used to adjust the output signal when analog signals are too low or too
high.
Example: A sensor, which is connected to the input of the isolation amplifier, delivers a analog signal of
maximum 9.7V. Using the zero/span potentiometer, the signal can be readjusted to 10.0V.
= ON
9. DIP-switch adjustability
DIP switch S1 (2-fold)
DIP switch S2 (6-fold)
Input
Output range
1 2
1 2
3
0-20 mA
0-20 mA
4-20 mA
4-20 mA
0-10 V
0-10 V
2-10 V
2-10 V
0-5 V
0-5 V
1-5 V
1-5 V
LZ = Live-Zero (displaced zero-point, e.g. 4...20 mA)
DZ = Dead-Zero (e.g. 0...20 mA)
www.wago.com
Subject to design changes
5. Dimensions
U,I
U,I
IN
OUT
IN+ (1)
Power
GND1 (2)
Us+ (3)
GND3 (4)
6. Installation instructions
Push down the jumper bars
until fully inserted
How to connect the conductor
Transmission
Max. operating
Default-settings
frequency
- Input: 0...20 mA
4 5
6
- Output: 0...20 mA
Input / Output 1 : 1
f
ca. 5 kHz
max
Input LZ / Output DZ
f
< 100 Hz
- cut-off frequency: < 100 Hz
max
Input DZ / Output LZ
Span
Zero
OUT+ (5)
GND2 (6)
Us+ (7)
GND3 (8)
Jumper bars stuck
Removing the jumper bars
1
2
prepared for
7. Technical data
Input signal
0...20 mA, 4...20 mA
(calibrated switchable)
0...10 V, 2...10 V
0...5 V, 1...5 V
Input resistance
I-input
50 Ù
U-input
100 kÙ
Output signal
0...20 mA, 4...20 mA
(calibrated switchable)
0...10 V, 2...10 V
0...5 V, 1...5 V
Load impedance I
600 Ù
OUT
Load impedance U
2 kÙ
OUT
Max. operating frequency
< 100 Hz / ca. 5 kHz (switchable)
Response time (T
)
< 3.5 ms / < 100 µs
10-90
Zero / span adjustment
± 3 %
Voltage supply U
DC 24 V
N
Voltage supply range
19.2 V...30.2 V
Current consumption at U
< 25 mA
N
Error of transmission
< 0.1 % of the full scale value
Temperature coefficient
0.01 % / K
Test voltage
AC 2.5 kV, 50 Hz, 1 min
Ambient operating temperature -20 °C...+65 °C
Storage temperature
-40 °C...+85 °C
Terminal block width
6.0 mm / 0.236 in
Wire connection
CAGE CLAMP® S
2
solid „s"
0.08-2.5 mm / AWG 28-12
2
fine stranded „f-st"
0.34-2.5 mm / AWG 22-12
Stripped length
9-10 mm / 0.37 in
Approvals
CE, UL508 (E175199)
Deviating technical data at
extended voltage supply and temperature range
Voltage supply range
16.8 V...31.2 V
Ambient operating temperature -25 °C...+70 °C
Load impedance I
500 Ù
OUT
Load impedance U
10 kÙ
OUT
Standards
EMC / CE
Namur NE21, DIN EN 61326
EN 61000-6-2
EN 61000-6-4
Safe isolation
acc. to DIN EN 61140 by increased isolation
acc. to DIN EN 61010 part 1 up to AC/DC 300 V for overvoltage category II
and pollution degree 2 between all circuits.
Galvanic isolation
AC/DC 600 V for overvoltage category II and pollution degree 2
acc. to DIN EN 61010 part 1 between all circuits.
8. LEDs
The (green) LED, which is visible on the front, displays the following status:
Green LED lights: Power supply on
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