AST LS 804 Operation instructions

1
Load Switch
LS 804
Original
Manual
A.S.T. - Angewandte System Technik GmbH, Mess- und Regeltechnik
Marschnerstraße 26 D-01307 Dresden
Phone [phone] Fax [phone]
www.ast.de [email protected]

Manual Load Switch LS 804
Subject to technical changes, Status: 07.06.2017 1
A.S.T. - Angewandte System Technik GmbH, Mess- und Regeltechnik
List of Contents
1.General description .............................................................................................. 1
2.Functional description ......................................................................................... 1
3.Dimensions ........................................................................................................... 2
4.Electrical connection ............................................................................................ 3
4.1.Connection diagram ................................................................................................ 3
4.2.Voltage supply 24 V DC .......................................................................................... 3
4.3.Sensor inputs I a – I d ............................................................................................. 4
4.3.1.LS 804.01 ........................................................................................................... 4
4.3.2.LS 804.02 ........................................................................................................... 5
4.4.Switching inputs IN1 to IN16 ................................................................................... 6
4.5.Analogue outputs Vout and Iout .............................................................................. 7
4.6.Output relays and error relays K1 to K6 and Error1 and Error2 .............................. 7
4.7.Digital interfaces LAN, CAN and RS485/232 .......................................................... 7
4.7.1Pin assignment / CAN interface .............................................................................. 8
4.7.2Pin assignment / RS485 interface / optional RS232 interface ................................. 8
5.Operation and display LS 804 .............................................................................. 9
5.1.Functions of keys .................................................................................................... 9
5.1.1.Function keys ..................................................................................................... 9
5.1.2.Cursor keys ........................................................................................................ 9
5.2.LED indicators....................................................................................................... 10
5.2.1.LEDs "SP1" and "SP2" ..................................................................................... 10
5.2.2.LED "Error" and error displays .......................................................................... 11
5.3.Matrix display - 4 x 20 characters ......................................................................... 12
5.3.1.Operating display / sensor signals a to d and switching contacts ..................... 12
5.3.2.Operating display / network for browser accessing ........................................... 13
5.3.3.Operating display for load spectrum recorders ................................................. 14
5.4.Configuration via keypad ...................................................................................... 15
5.4.1.Limits ................................................................................................................ 15
5.4.2.Adjustment ........................................................................................................ 16
6.Configuration via web browser ......................................................................... 17
6.1.Status (information) ............................................................................................... 17
6.2.Settings (scaling, interfaces, password) ................................................................ 18
6.3.Adjustment (load calibration) ................................................................................ 20
6.3.1.Adjustment status ............................................................................................. 22
6.4.Limits (K1 to K6) ................................................................................................... 23
6.5.Load spectrum recorders (LSR) ............................................................................ 25
6.6.Configuration / Config ........................................................................................... 26
7.Maintenance / Error messages .......................................................................... 27
7.1.Status of relays K1 to K6 ...................................................................................... 27
7.2.Status of relays Error1 and Error2 ........................................................................ 28
8.Instructions in the event of failure .................................................................... 29
8.1.Error overview ....................................................................................................... 29
8.1.1.Error overview / Sensor errors .......................................................................... 29
8.1.2.Error overview: hardware failure / adjustment errors ........................................ 29
8.2.Sensor errors ........................................................................................................ 30
8.3.Adjustment errors .................................................................................................. 30
8.4.Communication errors / Logic units L1/L2 ............................................................. 31
9.Technical data ..................................................................................................... 32
10.Project planning assistance .............................................................................. 33
11.EC declaration of conformity ............................................................................. 34

Manual Load Switch LS 804
Subject to technical changes. 06/2017 Page 1 of 34
A.S.T. - Angewandte System Technik GmbH, Mess- und Regeltechnik
1. General description
The "LS 804 Load Switch” is a configurable switching device.
Based on DIN ISO 13849, the design and architecture of the LS 804 load switch unite to bring
about a high level of safety integrity. The appliance meets PerformanceLevel PL c.
Up to a total of four sensors can be linked up to the device. The LS 804.01 is capable of processing
sensors with a strain-gauge signal in mV/V, whereas the LS 804.02 processes sensors with a standard
signal of 4-20 mA. Sensors processing a standard signal of 4-20 mA can be fed from the LS 804 applying
24 V DC.
The mode of operation on the device is set by configuration via a web browser in addition to individual
setting and adjustment on the keypad. Depending on the number and type of the connected load sensors,
individual, cumulative, differential and partial loads can be monitored.
Outputting of the freely parameterisable load shut-off points takes place via six relays ("K1" to "K6") with
N/O contacts. Allocation of the relays to the load signals is freely configurable. In addition, the device
incorporates two error relay outputs "Error1" and "Error2". These error relays are not freely programmable
and generate a “0” status in the event of a system error occurring. The use of force-guided relays on the
SLS 801 serves to ensure maximum system safety.
Two analogue outputs and two digital interfaces are provided for further application of the load signals on
overriding systems.
2. Functional description
CAUTION! Any operating processes or adjustments performed on the keypad of the LS 804 via
the web browser as well as changes made to the limit-set function by means of switching inputs
IN1 to IN8 will render the switching function inoperative for the duration of this work and the
resetting phase as well as for a few seconds afterwards.
Signal a
Signal c
Signal b
Signal d
Sensor a
Sensor c
Sensor b
Sensor d
Lastschalter LS 804
Speisespannung
- 24 VDC -
Verbindung
Überwachung L1/ L2
Überwachung
Eingänge
- digital -
Ausgänge
- analog -
Anzeige
LED
Tastatur
I a K1
K2
K3
K4
K5
K6
Error 1
Error 2
L1
(Ch 1)
L2
(Ch 2)
I b
I c
I d
Ethernet
CAN
RS485
Figure 1 – Block diagram LS 804

Manual Load Switch LS 804
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Monitoring not only takes place of output relays "K1" to "K6" and error relays "Error1" and "Error2”, but
also of the load sensors with respect to cable rupture and short-circuiting. In the event of system errors
occurring, the error relays will switch off. A sensor error on any input does not automatically lead to loss
of function on the overall system. As a result of this functionality feature, a high level of safety is attained
along with maximum possible availability.
The LS804 is designed with several peripheral interfaces.
- The two analogue outputs 0-10 V / 4-20 mA for sensors a to d or selected total formation.
- Connection: LAN (RJ-45)
- Connection X1: CAN
- Connection X2: RS485 / optional RS232
3. Dimensions
Dimensions: 102 mm x 105 mm x 205 mm / 1 kg
Weight: Approx. 1kg
Fastening on mounting rail TS35
Connection Voltage supply 1.5 mm2 screw terminals
Switching outputs (relays)) 1.5 mm2 screw terminals
Analogue outputs 1.0 mm2 screw terminals
Switching inputs 1.0 mm2 screw terminals
LAN
204 4
2
,5
73,6
75,4
105,4
SP1
CAN RS 485
LAN
SP2 Error Run
LS 804
OK
F3
F2F1
Figure 2- Dimensions LS 804

Manual Load Switch LS 804
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4. Electrical connection
4.1. Connection diagram
LAN
38 48 53 63 68 58
-SI c
-SI a
IN15
IN7 IN3
IN11
39 49
54 64
69 59
+ SI c
+ SI a
IN14
IN6 IN2
IN10
40 50
55 65
70 60
+EX c
+EX a
IN13
IN5
IN1
IN9
37 47
52 62
67 57
-EX c
-EX a
IN16
IN8
IN4
IN12
36 46
51 61
66 56
SHI c
SHI a
IN13...16R
IN5...8R IN1...4R
IN9...12R
35 45
+EX d +EX b
34 44
+SI d
+SI b
33 43
-SI d -SI b
32 42
-EX d -EX b
31 41
SHI d SHI b
AG 2
Error 1
Error 2
23
7K1
K2
K3 K4 K5 K6
1
+24 VDC +24 VDC
0 V 0 V
PE PE
2
Power
3
4
5
6 8 9
1
0
11
12
13 1
4
1
5
16 17 17 18 19 2
0
21
22
2
4
2
5
26 27 28 29 3
0
AG 2
Vout 2
lout 2
AG 1 AG 1
Vout 1
lout 1
SP1
CAN RS 485
LAN
SP2 Error Run
LS 804
OK
F3
F2F1
Figure 3 – Position and designation of connections
4.2. Voltage supply 24 V DC
The operating voltage is 18-36 V DC, this being based on a maximum power consumption of 15 VA.
Operational readiness is indicated by means of an LED next to the 24 V AC connections.
Conductors of up to 1.5 mm2 can be connected up to terminal blocks 1 to 6.
After the operating voltage has been applied, the green LED “Power” indicator will light up next to terminal
1 as well as the “Run” LED.

Manual Load Switch LS 804
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4.3. Sensor inputs I a – I d
A total of four sensor connections are available.
Conductors of up to 1.0 mm2 can be connected up to terminal blocks 31 to 50.
4.3.1. LS 804.01
The LS 804.01 is designed for DMS sensors with a signal output range extending from -5mV/V to
+5mV/V. The bridge resistors may be from 350 Ω ... 1000 Ω.
Input stages "I 1a" and "I 1b" serve to feed the DMS sensors with 5 V, input stages "I c" und "I d"
supplying the DMS sensors with 3.3V.
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
Signal a Si
g
nal c
Si
g
nal b Si
g
nal d
ac bd
-SI c
-SI a
+ SI c
+ SI a
+EX c
+EX a
-EX c
-EX a
SHI c
SHI a
+EX d
+EX b
+SI d
+SI b
-SI d
-SI b
-EX d
-EX b
SHI d
SHI b
CAN RS 485
F3
F2F1
Figure 4– Sensor inputs I a – I d (LS 804.01)

Manual Load Switch LS 804
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4.3.2. LS 804.02
The LS 804.02 is designed for DMS sensors having an integrated or external DMS amplifier with a
standard signal output 4-20mA.
The LS 804.02 feeds the amplifiers with 24V DC, max. 25 mA. The input signal range without error
message extends from 2 mA to 22 mA.
The "0V" connections of the respective sensors are bridged internally. If sensors with three conductors –
"UB", "OUT" and "OV" – are available, connections 32, 37, 42 und 47 must be left free.
UB a
50
OUT a
49
0V a
48
0V a
47
SHI a
46
UB b
45
OUT b
44
0V b
43
0V b
42
SHI b
41
UB c
40
OUT c
39
0V c
38
0V c
37
SHI c
36
UB d
35
OUT d
34
0V d
33
0V d
32
SHI d
31
Signal a Signal c Signal b Signal d
ac
bd
CAN RS 485
F3
F2F1
Figure 5– Sensor inputs I a – I d (LS.804.02)

Manual Load Switch LS 804
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4.4. Switching inputs IN1 to IN16
Sixteen optocoupler inputs are arranged in four groups each group being made up of four inputs. Limit
sets can be accessed to by means of inputs IN1 to IN8.
A static signal on the relevant input provides access to the corresponding limit set: Via IN1, set “1” is
defined as the current set. If no signal is present, the LS 804 will operate with the limit set last displayed
in Chapter 6.4 Limits (K1 to K6). If, by accident, more than one input is occupied by a signal, the LS 804
will utilise that input having the lowest number.
For the load spectrum recorder, inputs IN13 and IN16 are employed for switching the “Raise/Lower”
signals (signals a to d). A signal applied to input IN12 generates the RESET function on the device in the
event of an error occurring; also refer to Chapter 7 Maintenance / Error messages.
Static signal
on Reaction on LS 804
IN1 Accessing to limit set 1
IN2 Accessing to limit set 2
IN3 Accessing to limit set 3
IN4 Accessing to limit set 4
IN5 Accessing to limit set 5
IN6 Accessing to limit set 6
IN7 Accessing to limit set 7
IN8 Accessing to limit set 8
IN9 ((unoccupied))
IN10 ((unoccupied))
IN11 ((unoccupied))
IN12 RESET function in the event of error (FATAL ERROR); also refer to Chapter on LED
“Error”.
IN13 Start up / Load spectrum recorders / Sensor a (signal for Raise/Lower)
IN14 Start up / Load spectrum recorders / Sensor b (signal for Raise/Lower)
IN15 Start up / Load spectrum recorders / Sensor c (signal for Raise/Lower)
IN16 Start up / Load spectrum recorders / Sensor d (signal for Raise/Lower)
Table 1 – Inputs
Return of the keying pulse "direct" or "+24 V DC" or "0 V" is set by means of jumpers INx...xR.
Conductors of up to 1.0 mm2 can be connected up to terminal blocks 51 to 70.
IN3 68
IN2 69
0
V
IN1 70
+24VD
C
IN4 67
IN1...4R 66
0
V
68
69 70
67
66
IN3
IN2
0
V
IN1
+24VDC
IN4
IN1...4R
24V
68 69
70
67
66
IN3
IN2
0
V
IN1
+24VDC
IN4
IN1...4R
24V
0
V
Switching signal "0V" Switching signal "24V" Switching signal "Zero potential"
Figure 6 Examples illustrating return of keying pulse via jumpers (0V, 24V, zero potential)
Note: The jumper settings in Fig. 6 apply to all groups IN1…IN4 / IN5…IN8 / IN9…IN12 /
IN13…IN16.

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68 58 63 53
69 59 64 54 70 60 65 55
67 57 62 52
66 56 61
IN3
IN11
IN7
IN15
IN2
IN10
IN6
IN14
0V 0V 0V 0V
IN1 IN9 IN5
IN13
+24VDC +24VDC +24VDC +24VDC
IN4
In12
IN8
IN16
IN1...4R
IN9...12R
IN5...8R
Switching signal "pushbutton" for input 1 … 16
Figure 7 - Examples illustrating return of keying pulse via jumpers (pushbutton)
4.5. Analogue outputs Vout and Iout
The LS 804 features two analogue outputs AnalogOut1 and AnalogOut2, both of which are capable of
being configured as voltage or current outputs (Vout1 / Iout1 or Vout2 / Iout2) – 0-10 V or 4-20 mA. The
analogue output stages can be freely assigned to the input signals and their respective linkages, e.g.
selected total formation (also refer to Chapter 6.2 Settings (scaling, interfaces, password).
The maximum load of the current outputs may be 500 Ω; the minimum load resistance for the voltage
outputs must be 1 kΩ. Conductors of up to 1.0 mm2 can be connected up to the terminal blocks.
4.6. Output relays and error relays K1 to K6 and Error1 and Error2
The LS 804 is equipped with a total of eight switching outputs.
Six output relays – K1 to K6 – are freely adjustable within the scope of different applications with respect
to input signals and their respective linkages (also refer to Chapter 6.4 Limits (K1 to K6)).
No access is provided to the two error relays Error1 and Error2. These are only triggered in the event of
system errors occurring on the facility, sensor errors included.
The switching relays are force-actuated working contacts; their switching status can be indicated on the
display.
The maximum switching capacity (DIN EN 60947-4-1 / EN 60947-4-1) is as follows:
AC1: 250V/6A, AC15: 230V/3A, DC1: 24V/6A, DC13: 24V/5A/0,1Hz, UL 508: B300 / R300.
Conductors of up to 1.5 mm2 can be connected up to terminal blocks 7 to 22.
4.7. Digital interfaces LAN, CAN and RS485/232
On the basic version of the LS 804 provision is made for three interfaces for data exchange or data
transmission.
LAN (RJ-45): Parameterisation of LS 804 via a browser.
X1 (9-Pin-SUB-D): CAN interface.
X2 (9-Pin-SUB-D): RS485 interface / optional RS232 interface.
Cyclical output of measured values as ASCII string.

Manual Load Switch LS 804
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4.7.1 Pin assignment / CAN interface
PIN Function
1 (( unoccupied ))
2 (( unoccupied ))
3 CAN-L
4 CAN-GND
5 (( unoccupied ))
6 (( unoccupied ))
7 CAN-H
8 (( unoccupied ))
9 (( unoccupied ))
Table 2– X1 – Pin assignment / CAN interface
4.7.2 Pin assignment / RS485 interface / optional RS232 interface
PIN Function
1 (( unoccupied ))
2 (( unoccupied ))
3 485-B
4 (( unoccupied ))
5 485-GND
6 (( unoccupied ))
7 (( unoccupied ))
8 485-A
9 (( unoccupied ))
Table 3 – X2 – Pin assignment / RS485 interface
PIN Function
1 (( unoccupied ))
2 232-TX
3 232-RX
4 (( unoccupied ))
5 232-GND
6 (( unoccupied ))
7 (( unoccupied ))
8 (( unoccupied ))
9 (( unoccupied ))
Table 4 – X2 – Pin assignment / optional RS232 interface

Manual Load Switch LS 804
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5. Operation and display LS 804
5.1. Functions of keys
5.1.1. Function keys
The LS 804 device is set to the operating or programming status by means of function keys F1, F2 and
F3.
Note: The functions of the respective keys F1 to F3 are indicated in the bottom line of the display
matrix.
5.1.2. Cursor keys
Further displays and operations take place by actuating the cursor keys.
Simultaneous pressing of keys:
and Information on network addresses (also refer to Chapter 5.3.2 – Operating display /
network for browser accessing).
and Adjustments menu for sensors and switching points (also refer to Chapter 5.4–
Configuration via keypad).
and Operating display / Service life (also refer to Chapter 5.3.3– Operating display for load
spectrum recorders).
Note: The cursor keys are only pressed simultaneously in the operating display for sensor
signals (also refer to Chapter 5.3.1– Operating display / sensor signals a to d and switching
contacts)).
and /or Return to operating display / Sensor signals takes place according to the
information indicated in the display.

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5.2. LED indicators
SP1
CAN RS 485
LAN
SP2 Error Run
LS 804
OK
F3
F2F1
Figure 8– Position of LEDs
Power: 24 V DC supply voltage
Run: LS 804 ready for operation
Caution! The LS 804 cannot be returned to the operating status (LED Run lights up
green) until the causes of failure have been eliminated and the device has been restarted by
means of the Reset key. or input IN12.
SP1/SP2 signalises at least one open contact "K1" to "K6" in each case.
Error System error: At least one error relay "Error1" or "Error2" is open.
5.2.1. LEDs "SP1" and "SP2"
The LEDs "SP1" and "SP2" signalise that at least one contact "K1" to "K6" is open. These correspond to
the settings specified in Chapter 6.4 Limits (K1 to K6) and can be queried by means of the operator
actions specified in Chapter 5.3.1 Operating display / sensor signals a to d and switching contacts.
LED SP1: This references to sensor a to d when K1, K3, K4 and K5 trigger.
LED SP2: This references to sensor a to d when K1, K3, K4 and K6 trigger.
Note: The LEDs SP1 or SP2 will send a signal if any exceeding or falling-below of the switching
thresholds has been detected (refer to Chapter6.4 Limits (K1 to K6)).
Power

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5.2.2. LED "Error" and error displays
LED Error indicates a system error. At the same time an error message will appear in the display
according to the following example:
F A T A L - E R R O R !
C h 1 : S F : 0 D / H W : 0 9
C h 2 : S F : 2 D / H W : 0 0
I P F l a g s R e s e t
Figure 9 – Error display
Pressing the key facilitates switching between L1/L2 and the measured-value display.
Pressing key Flags makes it possible to display selected error flags.
Actuating keys or facilitates swapping between the display of the SF flags and HW flags
(hardware flags).
In the HW-flag display mode additional displaying of the flag values is possible indicating voltage supply
errors/sensor errors (V-Exc-Flags 1/2).
S F - F l a g s
a : 0 b : 0 c : 0 d : 0
E x i t
Figure 10 – SF flags
H W - F l a g s
a : 1 b : 0 c : 0 d : 0
V - E x c : 1
V - E x c E x i t
Figure 11 – HW flags
Pressing V-Exc and the keys or makes it possible to display flags indicating voltage supply
errors (V-Exec-Flags 1) as well as individual sensor errors (V-Exc-Flags 2).
V - E x c - F l a g s 1
1 2 V : 0 5 V E / V : 0
3 . 3 V E : 0 3 . 3 V V : 0
E x i t
Figure 12 – Flags indicating voltage supply errors (V-Exc-Flags 1)
V - E x c - F l a g s 2
S e n s a : 0 S e n s b : 0
S e n s c : 0 S e n s d : 0
E x i t
Figure 13 – Flags indicating sensor errors (V-Exc-Flags 2)

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Key to the different flags:
12V: Voltage supply/relay
5V E/V: Voltage supply/sensor supply voltage / Channel 1 (L1/Ch1)
3.3V E Sensor supply voltage / Channel 2 (L2/Ch2)
3.3V A Supply voltage / Channel 2 (L2/Ch2)
Sens a: Sensor a (calibration/signal out of specification or wire breakage)
Sens b: Sensor b (calibration/signal out of specification or wire breakage)
Sens c: Sensor c (calibration/signal out of specification or wire breakage)
Sens d: Sensor d (calibration/signal out of specification or wire breakage)
Further information on error messages/causes and their elimination will be found described in
Chapter 8 Instructions in the event of failure occurring.
5.3. Matrix display - 4 x 20 characters
The four-line matrix display serves to indicate operating statuses and signals as well as acting as a
display when configuring the LS 804.
Die 4-zeilige Matrixanzeige dient sowohl der Anzeige von Betriebszuständen und Signalen als auch der
Anzeige bei der Konfiguration des LS 804.
5.3.1. Operating display / sensor signals a to d and switching contacts
Following application of the operating voltage and the connection of operable sensors, sensor signals a
and b will be displayed.
R u n - C h 1
a : 3 . 2 t 
b : 1 . 7 t
S u M c / d R e l
Figure 14 – Operating display / sensor signals
Using cursor keys or facilitates switching back and forth to and from the % display.
Pressing key c/d the display will switch to the values of the sensors c and d.
 Load spectrum recorder is active! (also refer to 5.3.3 - Operating display for load spectrum recorders).
Actuating key Rel serves to display the status of the output relays K1 to K6. (Example: “K1: 0“ –
K1 closed; “K5: 1“ – K5 open) and the error relays Error1 and Error2.
K 1 : 0 K 4 : 0 E 1 : 0
K 2 : 0 K 5 : 1 E 2 : 0
K 3 : 0 K 6 : 0
E x i t
Figure 15 – Operating display / Switching contacts

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5.3.2. Operating display / network for browser accessing
Information on the network addresses and other details can be obtained from the operating display of the
sensor signals by pressing keys and simultaneously.
L S 8 0 4 - I n f o r m a t i o n
I P S c a l e E x i t
Figure 16 - LS804 – Information
Actuating key IP serves to display network information including the IP address of the device, by
means of which it is possible to access to the LS 804 via a browser.
N e t w o r k : D H C P O N
I P : 1 9 2 . 1 6 8 . 1 0 0 . 2 0
N M : 2 5 5 . 2 5 5 . 2 5 5 . 0
G W : 1 9 2 . 1 6 8 . 1 0 0 . 1
Figure 17 – Network information
Default-IP: 192.168.1.10
DHCP default ON
The IP address can be assigned automatically from a linked-up DHCP server if the value "DHCP = On"
has been set (also refer to Chapter 6.2. Settings (scaling, interfaces, password)).
If no DCHP server is found in the network, the IP address will have been set to the above value.
Default login data (if default): Login:admin) / Password: admin (refer to Chapter 6.2).
Pressing the key returns the user to menu "LS804 – Information".
Key Scale indicates the 100% values (nominal characteristics) of sensors a to d (also refer to
Chapter 6.2 Settings (scaling, interfaces, password)).
Actuating or brings about a display change of sensors a/b and c/d.
In addition the LS 804 variant (mV / mA) will be displayed as well as the current limit set.
M e a s . s c a l e s e t t i n g s
V a r : m V / L s : 2
a: 1 0 0 . 0 t
b: 2 0 . 0 t
Figure 18 – Scaled values for signal a and signal b
Actuating the button returns the user to menu " LS804 – Information".

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5.3.3. Operating display for load spectrum recorders
Load spectrum recorders (LSR) are provided for displaying the service life of the individual sensors a to d,
computed in accordance with FEM Directive 9.755.
For this purpose, a signal is evaluated second-by-second, proportional to the load 0…100% of the
relevant hoist unit when this is operated and saved in a totalizing memory.
The contents of this totalizing memory constitute the actual useful life S. This can be displayed both in
hours as actual useful life S and as a percentage % as consumed useful life V = S/D.
Note: All inputting of the theoretical useful life D and the starting value for actual useful life S is
carried out employing a web browser (Chapter 6.5 Load spectrum recorders (LSR)).
Note: The service life is computed for each sensor individually and cannot be made up of
several input signals.
Pressing and switches the system to the operation display containing the service-life indicator
(also refer to Chapter 6.5 Load spectrum recorders (LSR)).
L S 8 0 4 - L S R
S e n s o r a : -
S e n s o r b : R U N
S e n s a S e n s b E x i t
Figure 19 Operation display – Load spectrum recorders
Fig. 19 indicates that the totalized service life in respect of sensor b. The given example indicates an
operating signal arriving from hoist unit b). No operating signal is shown to be coming from sensor a (e.g.
hoist unit a).
Exiting of the display is carried out by pressing the key.
Actuating or brings about a display change of sensors a/b and c/d.
In the given example pressing key Sens a makes it possible to access to information on the
service life in respect of sensor a (hoist unit a).
L S R - S e n s o r a
D [ h ] : 1 2 0 0
S [ h ] : 1 2 3
V [ % ] : 1 0 . 2
Figure 20 - Service-life display – Sensor a
Exiting of the display is carried out by pressing the key.

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5.4. Configuration via keypad
Note: Where configurations are triggered via the web browser, the respective setting options are
blocked by LCD / keypad so as to prevent operating errors.
Pressing and triggers change to the Adjustments Menu governing the sensor signals.
In menu LS804 – Functions it is possible to carry out readjustments to the sensor signals a to d in respect
of zero load (0%) and full load (100%) as well as changes to the switching points. A precondition for this
is that the configuration has previously been carried out via the web browser.
L S 8 0 4 - F u n c t i o n s
L i m . A d j . E x i t
Figure 21– Function menu
Lim.: Menu for setting the limits on the current limit set (refer to 5.4.1 Limits)
Adj.: Adjustments Menu for setting the zero load and final value (refer to 5.4.2 Adjustment).
5.4.1. Limits
In the "Limit" menu, the display on the LS 804 only shows the values of the current limit set. This will have
previously been accessed to by means of an input signal or determined in accordance with Chapter 6.4
Limits (K1 to K6) with the "Limit set" function. On the LS 804 it is possible to deposit up to 8 limit sets.
Depressing or serves to trigger selection of the limit.
Actuating or brings about a change in the values of the relevant limit.
must be pressed to complete the changes to the display!
If this is not done, it will not be possible to access to information on other switching points using keys
or .
1 : O L [ N ] + a Display: Limit No. with measurement unit & sensor config.
1 4 0
Value for limit or period of delay
R e l : 1
Allocated relays K1 to K6.
R e a d E x i t
Figure 22 – Display of switching point (where overloading occurs of 140% in respect of sensor a, relay 1
(K1) will be switched off with a time lag).
1 : D e L a y [ m s ]
5 0 0
R e L : 1
R e a d E x i t
Figure 23 - Display of switching point (where a switching condition is met for signal a, relay 1 (K1) will be
switched off if that switching condition is not met after 500 milliseconds).
Note: Allocation of the switching relays K1 to K6 can only be set via a web browser! (Refer to
Chapter 6.4 Limits (K1 to K6)).

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5.4.2. Adjustment
Sensors a to d can be accessed to in the Adjustments Menu.
The sensor signals a and b can be adjusted in accordance with the following illustration (Fig. 25):
Using cursor keys or facilitates switching back and forth to and from the display containing
sensors c and d.
A d j u s t m e n t
A d j u s t m e n t O K !
S e n s a S e n s b E x i t
Figure 24– Adjustments menu for selecting sensor a or b
A d j u s t m e n t - S e n s a
2 0 0 N
1 0 0 %
> 0 < 1 0 0 % E x i t
Figure 25– Adjustments menu for sensor a
>0<: Adjustment of zero load >0<. A precondition is that the signal of sensor a is load-free.
100%: Adjustment of full load 100%. The signal of sensor a must generate a 100% load!
Caution! When actuating the keys >0< and 100% the values are only set
temporarily. The values are not saved until the Adjustments menu is quitted by pressing
Exit!
Exit: Exiting of Adjustments menu and prompting to save adjustment "Save Adjustment?"
Adj.: Repetition of adjustment process.
Yes: Saving of readjusted temporary values.
No: Exiting of menu without saving the adjusted temporary values.
The same process is carried out in respect of adjustments to sensors c and d.