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AX 345
Operating Instructions
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Operating Instructions [fr]
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Operating Instructions [de]
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Table of contents
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Motrona AX 345, AX 347, AX 348 Operating Instructions

control – motion – interface
AX 346:
Process Indicator with Analogue Outputs 0
-
10 V und 0/4
–
20 mA
AX 347:
Process Indicator
with 2 Presets and Optocoupler Outputs
AX 348:
Process Indicator with Serial RS232 / RS485 Interface
AX 345, AX 347, AX 348
Process Indicators with
Two Analogue Inputs and Calculations
motrona GmbH Zwischen den Wegen 32 78239 Rielasingen - Germany Tel. +49 (0)7731-9332-0 Fax +49 (0)7731-9332-30 info@motrona.com www.motrona.com
AX 345
Two analogue inputs with independent scaling, each +/- 10V or 0/4 – 20 mA Operating modes for display of input A or input B or the combinations
Useful supplementary functions like Tare function, programmable averaging
Power supply 115/230 VAC and 17-30 VDC in the same unit Aux. output 24 V DC / 100 mA for sensor supply
Process Indicator, Display only
(see separate manual)
A + B, A - B, A x B and A : B
functions, programmable linearization etc.
Operating Instructions
Safety Instructions
Version:
Description:
AX34507a_hk/kk/04/2007
First edition
AX34507b_hk/kk/10/2007
CMD key commands added
A
X34509a_kk/hk/08/2010
Over
-
/underflow control added
AX34509b_mb/nw/02/2013
Technical data added (ripple and ambient temperature)
This manual is an essential part of the unit and contains important hints about
function, correct handling and commissioning. Non-observance can result in damage to the unit or the machine or even in injury to persons using the equipment!
The unit must only be installed, connected and activated by a qualified electrician
It is a must to observe all general and also all country-specific and application-
specific safety standards
When this unit is used with applications where failure or mal-operation could cause
damage to a machine or hazard to the operating staff, it is indispensable to meet effective precautions in order to avoid such consequences
Regarding installation, wiring, environmental conditions, screening of cables and
earthing, you must follow the general standards of industrial automation industry
- Errors and omissions excepted –
AX347: programmable output assignment, AX38: new model
Table of Contents
1. Introduction..........................................................................................................................................4
2. Terminal Assignments ......................................................................................................................... 5
2.1. Power supply ................................................................................................................................6
2.2. Aux. voltage output ......................................................................................................................6
2.3. Analogue measuring inputs..........................................................................................................6
2.4. Optocoupler transistor outputs (model AX 347 only)...................................................................7
2.5. Serial RS232 / RS485 interface (AX 348 only).............................................................................8
3. Jumper settings ...................................................................................................................................9
4. How to Operate the Keys ...................................................................................................................11
4.1. Normal display state ..................................................................................................................11
4.2. Parameter settings .....................................................................................................................12
4.2.1. How to select a parameter.........................................................................................................12
4.2.2. How to change parameter settings ...........................................................................................12
4.2.3. How to store settings.................................................................................................................12
4.2.4. Time-out function .......................................................................................................................12
4.3. Teach operation..........................................................................................................................13
4.4. Set all parameters to “Default“ .................................................................................................13
4.5. Code Locking of the Keypad.......................................................................................................13
5. The Parameter Menu ......................................................................................................................... 14
6. Setting of Parameters ........................................................................................................................ 16
6.1. Basic Parameters........................................................................................................................16
6.2. Operational parameters..............................................................................................................17
6.3. Modes of operation ....................................................................................................................18
6.3.1. Single mode (input A only).........................................................................................................18
6.3.2. Dual Mode (Inputs A and B separately).....................................................................................19
6.3.3. Combined Modes [A + B], [A - B], [A : B], [A x B].......................................................................20
6.4. Additional settings for the Preselections (model AX 347 only).................................................21
6.4.1. Basic settings for the Presets: ...................................................................................................21
6.4.2. Characteristics of the switching hysteresis ..............................................................................22
6.4.3. Operational settings for presets:...............................................................................................23
6.4.4. Actual switching state of the outputs:......................................................................................23
6.4.5. Response time of switching outputs .........................................................................................24
6.5. Additional Parameters for the Serial Interface (model AX 348 only)........................................25
6.5.1. Communication settings in the Basic Menu:.............................................................................25
6.5.2. Operational Parameters for configuration of the interface: .....................................................26
6.5.3. PC-Mode .....................................................................................................................................27
6.5.4. Printer Mode...............................................................................................................................28
7. Commissioning...................................................................................................................................29
8. Special Functions ...............................................................................................................................30
8.1. Tare / Offset function .................................................................................................................30
8.2. Linearization ...............................................................................................................................30
8.3. Manual input or „Teaching“ of the interpolation points ...........................................................32
8.4. Overflow and Underflow Control ...............................................................................................34
9. Technical Specifications .................................................................................................................... 35
9.1. Dimensions .................................................................................................................................35
9.2. Technical data ............................................................................................................................36
9.3. Commissioning Form ..................................................................................................................37

1. Introduction

Some of the general demands to an up-to-date process controller for automation industry are always high flexibility, combined with easy and simple operability.
Many applications require two separate analogue inputs for use with single or combined operation.
Also it may be important to display and evaluate both, linear and non-linear analogue inputs at an acceptable accuracy, which requires programmable linearization functions.
Process controllers of series AX 345 - 348 have been designed for this kind of requirements.
Model AX 345 provides display function only.
Model AX 346 provides additional analogue outputs +/-10 volts and 0/4 - 20 mA
(a separate manual is available for the AX346 model)
Model AX347 provides two additional Preselections with Optocoupler outputs
Model AX 348 provides additional serial communication via RS232 / RS485 interface
All other functions within this controller family are fully similar.
The present operating instructions are valid for models AX 345, AX347 and AX 348 only.
Separate operating instructions are available for model AX 346

2. Terminal Assignments

8
9
G
N
D
230
VAC11
5
V
A
C0VAC
optional, see *)
n
.c.n.c.
8
9
G
N
D
230
VAC11
5
V
A
C
0VA
C
optional, see *)
8
9
G
N
D
230
VAC11
5
V
A
C0VAC
optional, siehe *)
DRxD
,A(+)
D
,
B
(
-
)
AX 345: Basic model
1
3 4 5 6 7
10
n.c.
AX 347: Model with two presets and optocoupler outputs
AX 348: Model with serial RS232 / RS485 interface
GND217-30V DC in
1
GND217-30V DC in
Input A
Input B
AGND
GND
3 4 5 6 7
Input A
Input B
AGND
GND
+24V DC out
10
COM+
OUT 1
+24V DC out
PE
OUT 2
PE
1
3 4 5 6 7
GND217-30V DC in
Input A
Input B
AGND
GND
+24V DC out
10
Tx
GN
PE
*) The connection of PE is optional and not necessary for safety or for EMC.
However, with some applications, it can be useful to ground the common potential of all signal lines
When using the earthing option, please be aware that all terminals marked GND or
AGND will be earthed.
Multiple earthing on different positions of an installation may cause problems,
especially with poor overall performance of the whole earthing and screening system!
The minus potential of analogue inputs is internally connected to the minus of the DC
supply. When you like to use current loops through several units, it is therefore necessary to supply the units from either AC power or from several, potential­separated DC sources.

2.1. Power supply

The unit accepts DC supply from 17 to 30 VDC with use of terminals 1 and 2. The consumption depends on the level of the supply voltage (typical 80 mA at 30V or 130mA at 17V, plus current taken from the aux. output).
For AC supply, terminals 0 VAC and 115 VAC or 230 VAC can be used. The total AC power is approximately 7.5 VA.

2.2. Aux. voltage output

Terminal 7 provides an auxiliary output of 24 V DC / 100 mA max. for supply of sensors and encoders. This is valid for AC supply and DC supply of the unit as well.

2.3. Analogue measuring inputs

There are two analogue inputs with common minus potential available (Input A and Input B). Both refer to the AGND potential of terminal 5 which is internally connected to terminals 1, 6 and GND.
The analogue inputs can be configured for voltage input (+/- 10 V) or current input (0 / 4 – 20 mA) by means of internal jumpers.
Ex factory, both inputs are always configured for current input. (see section 3 for jumper settings)

2.4. Optocoupler transistor outputs (model AX 347 only)

(8)
Com+ (5 ... 35 V)
Output 1 (max. 150 mA)
Output 2 (max. 150 mA)
The outputs provide programmable switching characteristics and are potential-free. Please connect terminal 8 (COM+) to the positive potential of the voltage you like to switch
(range 5V....35V).
You must not exceed the maximum output current of 150mA. Where you intend to switch inductive loads, please provide filtering of the coil by means of external diodes.
Preset2 Preset1
Opto Opto
33 R 33 R
(9)
(10)

2.5. Serial RS232 / RS485 interface (AX 348 only)

ON DIP
DIL-Switch
8
910RxD
TxD
GND
8
910A (+)
B (-)
235
RxD
RxD
TxD
TxD
GND
Screen
PC
(Sub-D-9)
Connection of the RS232 interface
PLC
Connection of the RS485 interface
Ex factory the unit is set to RS232 communication. This setting can be changed to RS485 (2-wire) by means of an internal DIL switch. To access the DIL switch, you must remove the screw terminal connectors and the backplane. Then pull the board to the rear to remove the PCB from the housing.
Removal of the back plane Location of the DIL switch
ON
RS232:
ON
RS485:
Never set DIL switch positions 1 and 2 or DIL switch positions 3 and 4 to “ON”
at the same time!
After setting the switch, shift the print carefully back to the housing and avoid
damage of the front pins for connection to the front keypad plate.
9
AX 348
10
8
GND
AX 348
10
9
A(+)
B(-)
A(+)
B(-)

3. Jumper settings

=jumper insered
factory preset
A=current, B =current
A = voltage, B = voltage
(mA) (V)
(mA) (V)
(mA) (V)
(mA) (V)
(mA) (V)
(mA) (V)
When your input signal is a current of 0-20 mA or 4-20 mA, there is no need to change jumper settings and you can skip this section. Where however you intend to use one or both inputs for voltage signals, you must change the internal jumper settings correspondingly.
To access the jumpers, you have to disconnect the rear screw terminal strips, remove the back plane from the unit and pull the PCB out of the housing
locking tab
screw terminal strip
A
(mA) (V)B(mA) (V)
A
(mA)B(mA)
A
A
(mA)
A = voltage, B = currentA = current, B = voltage
A
A
(mA)
B
B
(mA)
A
A
(mA)
B
B
(mA)
B
B
(mA)
Wrong jumper settings may cause serious damage to the unit!
After setting the jumpers, please shift the print carefully back to the housing, in order not to damage the front pins for connection to the keypad plate.
Current inputs are automatically scaled to an input range of 0/4 – 20 mA.
Voltage inputs use the standard range of +/- 10V.
You are free to measure voltages up to 120 volts DC by use of a remote resistance in series to the input line (please observe applicable safety standards!). You can calculate the value from the formula
R = resistance value
Rx [ k] = 3 x Vx [ V ] - 30
V = input voltage
Example: Desired input = 100 volts:
R = [ 3 x 100 ] – 30 (k) = 270 k
With regard to the scaling procedure described later, the new maximum input with resistance will work like a 10 volts signal with no resistance
AX34509b_e.doc / Feb-13 Page 10 / 38

4. How to Operate the Keys

ENTER
SET
Cmd
Change over to
Key operation
Basic setup
Keep ENTER and SET down simultaneously for 3 seconds
Operational
Keep ENTER down for 3 seconds.
Teach operation
Keep SET down for 3 seconds
The unit uses 3 front keys for all setup operations. Subsequently, the key functions will be named as shown in the table below.
(Command)
The functions of the keys are depending on the actual operating state of the unit.
The following three operating states apply:
Normal display state Setup state
a.) Basic setup b.) Operational parameter setup
Teach operation

4.1. Normal display state

You can change over to the other states while the unit is in the normal display state only.
parameter setup
The Cmd key is only used for execution of the Tare function, the Reset function and for Teaching the interpolation points for linearization (see section 8).
AX34509b_e.doc / Feb-13 Page 11 / 38

4.2. Parameter settings

4.2.1. How to select a parameter The ENTER key will scroll through the menu. The SET key allows to select the corresponding

item and to change the setting or the numeric value. After this, the selection can be stored by ENTER again, which automatically changes over to the next menu item.

4.2.2. How to change parameter settings With numerical entries, at first the lowest digit will blink. When keeping the SET key down, the

highlighted digit will scroll in a continuous loop from 0 … 9 … 0 … 9. When you release the SET key, the actual digit will remain and the next digit will be highlighted (blink). This procedure allows setting all digits to the desired values. After the most significant digit has been set, the low order digit will blink again and you can do corrections if necessary. With signed parameters, the high order digit will only scroll between the values “0” (positive) and “-“ (negative)

4.2.3. How to store settings To store the actual setting, press the ENTER key, which will also automatically scroll forward

the menu.
The unit changes from programming mode to normal operation when you keep down the ENTER key again for at least 3 seconds.

4.2.4. Time-out function The “time-out” function will automatically conclude every menu level, when for a break period

of 10 seconds no key has been touched. In this case, any entry which has not been confirmed by ENTER yet would remain unconsidered.
AX34509b_e.doc / Feb-13 Page 12 / 38
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