Define Instruments PRO-WEI100 Manual de usuario
PRO-WEI100-MAN-19V01 (0225)Copyright © 2019 Dene Instruments
1
This intelligent weighing controller ac-
cepts input directly from a 4-wire or a
6-wire strain gauge.
The PRO-WEI100 has a number of ad-
vanced functions designed specically
for the weighing industry, and is simple
to set up and operate. It also features
output and input isolation, eliminating
the need for any special consideration
when interfacing to analog/serial in-
puts, or PCs/PLCs/HMIs.
Contents
1 Specications ............................. 2
2 Features ....................................... 3
3 Front Panel & Display................. 6
4 Wiring ........................................ 8
5 Dimensions & Installation ........ 11
6 Input Setup & Calibration ....... 13
7 Setpoint Setup........................... 24
8 Setpoint Direct Access .............. 27
9 Reset PIN Numbers .................. 27
10 Factory Analog Output
Calibration ................................. 28
A Appendix A - Input Functions... 29
B Appendix B - Serial Modes........ 31
PRO-WEI100
Weighing Controller
Order Codes
PRO–WEI100 Strain gauge input
–HV
–LV
85–265V AC / 95–370V DC
15–48V AC / 10–72V DC
Options
-R2
-R4
2 x relay outputs
4 x relay outputs
-A 1 x mA/V analog output
-S2R 1 x RS232 (RJ11 terminal)
-S4S 1 x RS485 (screw terminal)
PRO-WEI100-MAN-19V01 (0225) Copyright © 2019 Dene Instruments
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1 SPECIFICATIONS
Input
Input 4/6-wire strain gauge, 1–5mV/V
Power HV= 85–265V AC / 95–370V DC,
or LV= 15–48V AC / 10–72V DC
Max power 5W, fully optioned,
8 loadcells
Excitation 5V DC excitation supplied
(powers up to 8 x 350Ω loadcells)
Sampling rate Up to 60Hz
Resolution 18 bit
Accuracy 0.005% of reading
Temperature dri Typically 3ppm/°C
Relay Output
Number of relay outputs None, 2, or 4
Relay output type 5A form A (3A 240V
AC max or 3A 30V DC max)
Analog Output
Number of analog outputs None or 1
Analog output type Isolated 16 bit
4–20mA/0–10V
Comm Port
Number of comm ports None or 1
Comm port options
S2R= Isolated RS232, RJ terminal, or
S4S= Isolated RS485, screw terminal
Serial output Custom ASCII, Modbus
RTU slave, Gedge, Ranger A, or Print
Programming
Front panel buttons Up, Down, Prog,
plus 2 Function Buttons for menu access
Factory calibrated for 0–10,000 counts
(2mV/V sensor gain at full scale). 2 cal
sets for saving/restoring calibrations
Security Input and setpoint setups are
independently PIN protected
Display
Display type LED display, 5 buttons
LED indicators 6 setpoint indicator LED's
Digits 1 row of 6 digits, 13mm (0.5"),
14 segment alphanumeric LED
Construction
IP65 dust/splash proof (face only)
Dimensions (H x W x D)
96 x 48 x 120mm (3.78 x 1.89 x 4.72")
Panel cutout 92 x 45mm (3.62 x 1.77")
OPTIONAL
OPTIONAL
OPTIONAL
PRO-WEI100-MAN-19V01 (0225)Copyright © 2019 Dene Instruments
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2 FEATURES
2.1 - Batching
To access batching features, the controller's Mode must be set to Batch (see 6.2F).
It is then possible to perform the following functions from the button or rear
input pins:
Batch This function is used to display the live weight of the system but take
regular 'batches' of product without continually changing the setpoint.
When the Batch function is activated the display will tare and SP 1 and
SP 2 will turn on.
Batch Reset Resets the batch value to zero and halts any current batching operations.
Batch Pause Pauses the batching process and holds the current batched weight on
the display.
Batch Resume Resumes the batching process aer it has been paused, or if power was
lost during a previous batch.
See 6.2H–K and Appendix A for instructions on setting up and operating these features.
2.1A - Gain in Weight (GIW) Batching Direction
The Batching Direction parameter is set in 6.2G, and should be set to GIW (Gain
in Weight) for applications where the weight increases as product is added to the
weighing system.
E.g. Setting a setpoint value of 50Kg for SP 1 and 45Kg for SP 2 and enabling GIW batching will al-
low the user to ll a container to 50Kg, with a potential speed change at 45Kg. (See 2.1C for an
alternative method of setting up SP 2.)
The cycle is initiated when the Batch function is triggered. The display will tare, and when 45Kg
net weight is shown, SP 2 will drop out. As product continues to feed, at 50Kg SP 1 will drop
out, halting the ll.
If Flash Gross is enabled (see 6.2L) the gross weight will be displayed (E.g. Now 1050Kg, if the
starting gross weight was 1000Kg). The user can then trigger the Batch function again to call
another 50Kg batch.
2.1B - Loss in Weight (LIW) Batching Direction
The Batching Direction parameter is set in 6.2G, and should be set to LIW (Loss in
Weight) for applications where the weight decreases as product is removed from the
weighing system.
PRO-WEI100-MAN-19V01 (0225) Copyright © 2019 Dene Instruments
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E.g. Setting a setpoint value of 50Kg for SP 1 and 45Kg for SP 2 and enabling LIW batching will al-
low the user to ll a container to 50Kg, with a potential speed change at 45Kg. (See 2.1C for an
alternative method of setting up SP 2.)
The cycle is initiated when the Batch function is triggered. The display will tare, and when 45Kg
net weight is discharged, SP 2 will drop out. As product continues to be discharged, at 50Kg SP 1
will drop out, halting the product ow.
If Flash Gross is enabled (see 6.2L) the gross weight will be displayed (E.g. Now 950Kg, if the
starting gross weight was 1000Kg). The user can then trigger the Batch function again to call
another 50Kg batch.
In this mode if there is not enough product to drop a batch, then the instrument will advise the
operator by showing the message Low Product. If gross > SP 1, the Batch Value is reset to zero
and the display ashes Batch. SP 1 is turned on (and SP 2 if set up). If gross < SP 1, batching is
not started.
2.1C - Setpoint Tracking
In applications where the batch weight is continuously being changed, it is possible
to congure SP 2 so that it tracks SP 1, and always turns o at a xed amount below
the required batch weight.
E.g. If your initial batch weight was 100Kgs and you wanted SP 2 to turn o 5Kgs before it reached
the batch weight, you would set up the SP 1 value for 100Kgs and the SP 2 value for -5Kgs, and
set the Trail SP 1 option to on (see 6.2D).
This would cause SP 2 to turn o at 95Kgs (i.e. 100Kgs - 5Kgs). Then if you wanted the next
batch weight to be 200Kgs, you only need to change SP 1 to 200Kgs, and without altering
SP 2 it will now turn o at 195Kgs (200Kgs - 5Kgs).
2.2 - Input signal averaging
This controller has input signal averaging (see 6.5), to reduce noise and optimise
stable measurement. If your input signal contains large noise spikes, you can increase
the size of the Averaging Window to ensure that these are still averaged. If the
change in input exceeds the Averaging Window value it will not average, ensuring
fast response when there are large dierences between readings.
Note that increasing the window size too far will reduce the ability of the controller to respond
quickly to real changes in input signal.
2.3 - Tare
To access tare features, the controller's Mode must be set to Normal (see 6.2F). It is
then possible to Tare/Reset Tare from the button or rear input pins:
PRO-WEI100-MAN-19V01 (0225)Copyright © 2019 Dene Instruments
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Tare This feature 'zeroes' the display, and is usually used to deduct the weight
of the container from the total weight, leaving only the weight of the
product.
Tare Reset This feature clears the current tare value and shows the gross weight on
the display.
See 6.2H–K and Appendix A for instructions on setting up and operating these features.
2.4 - Zero maintenance
The Zero Maintenance feature is used to automatically compensate for slow dri in
loadcell output due to factors such as temperature change, rain and dust accumula-
tion over time.
When Auto Zero is enabled (see 6.4B), the controller display will zero automatically
if changes to the loadcell are within the user specied Capture Band, Motion Band
and Zero Band parameters (see 6.4C–E):
Capture Band (6.4C) This is the maximum number of display counts that the controller
will automatically zero within. The Capture Band is referenced to
the current zero value. If the input value on the load cell is not
within the Capture Band setting then the controller displays the
current loadcell value and does not zero.
Capture Band can be set from 1 to 254 counts, and should always be
set to less than the smallest weight to be measured. Setting the Cap-
ture Band to 0 will turn the auto zero feature o.
Motion Band (6.4D) This provides a rate of change limit setting, to determine the num-
ber of counts/second allowed within the Capture Band. If the
count change is within the Capture Band, but the speed of the
count change is more than the selected Motion Band, then the
controller displays the current loadcell value and does not zero.
The Motion Band can be set from 0 to 255 counts. Typical value is 1
or 2 counts/sec.
Zero Band (6.4E) This provides a limit for the number of counts of zero offset
allowed to accumulate, relative to the calibrated zero setting. If
the accumulated zero offset becomes greater than this window,
then the controller displays the current loadcell value and does
not zero.
The suggested limit for the Zero Band is 2% of the calibrated span. If
the controller fails to zero, check for mechanical or electrical faults.
PRO-WEI100-MAN-19V01 (0225) Copyright © 2019 Dene Instruments
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3 FRONT PANEL & DISPLAY
3.1 - Front panel
SPX The SP LED's are used to
indicate active setpoints.
NET The net LED indicates
when the net value is being dis-
played, and is also used for the
Flash Gross function (see 6.2L).
96mm (3.78")
48mm
(1.89")
This button is used to access the Input Setup & Calibration menu (Section 6)
and the Factory Analog Output Calibration menu (Section 10).
This button is used to save your settings and advance to the next step in the
setup process. A custom function can also be programmed (see 6.2H).
This button is typically used to scroll through options or increase values in the
setup menu. Pressing this button from the main display will allow you to view/reset
the Peak value, and view the raw input value (see 3.3).
This button is typically used to scroll through options or decrease values in the
setup menu. Pressing this button from the main display will allow you to view/reset
the Valley value (see 3.3).
This button is used to access the Setpoint Setup menu (Section 7) and the Set-
point Direct Access menu (Section 8).
3.2 - Display brightness
To adjust the display brightness, press the and buttons together from the
main display. BRI appears and toggles with the current setting. Use the and
buttons to adjust the LED backlight, and then press to nish.
PRO-WEI100-MAN-19V01 (0225)Copyright © 2019 Dene Instruments
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3.3 - Up and down button shortcuts
Pressing the and buttons from the main operational display allows instant
access to a number of values held in the controller's memory. These variables will ap-
pear in the order shown in the table below, and will cycle continuously at each press
of the or button. Press at any time to return to normal operating mode.
PEAK and VALLEY may be reset to zero by pressing the and buttons at the
same time while the variable is being displayed.
Up and down button shortcuts
PEAK The maximum measured weight since the instrument was turned on or reset
RAW IP The current raw value of the input signal in mV
VALLEY The minimum measured weight since the instrument was turned on or reset
PRO-WEI100-MAN-19V01 (0225) Copyright © 2019 Dene Instruments
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4 WIRING
BEFORE YOU BEGIN WIRING, ensure that the unit is switched o and the power
supply is disconnected.
4.1 - Pinouts
B
EF
A C
D
Key
4.1A Relay Output (See 4.3)
4.1B Serial Port (See 4.5)
4.1C Analog Output (See 4.4)
4.1D Analog Input (See 4.2)
4.1E Function Pins (See 4.6)
4.1F Power Supply HV/LV
(See 4.7)
4.2 - Wire the strain gauge input module
Wire your loadcell input module as shown in the dia-
gram. This input module is pre-calibrated for 0–10,000
counts full scale with a 2.000mV/V load cell sensor.
See 4.1D
-
Sense
+ EXC
+ Sense
Input sig. high
Input sig. low
-
EXC
Guard
Not connected
-
Sense
+ EXC
+ Sense
Input sig. high
Input sig. low
-
EXC
Guard
Not connected
PRO-WEI100-MAN-19V01 (0225)Copyright © 2019 Dene Instruments
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4.3 - Wire the relay outputs (if installed)
If your controller has relay outputs tted, wire them as shown below. Relays can be
programmed to operate within the total span range of the controller.
See 4.1A
SP2 SP1
-R2
SP3SP4 SP1SP2
-R4
4.4 - Wire the analog output (if installed)
If your controller has analog output tted, wire it as shown for either
voltage (0–10V) or current (4–20mA).
See 4.1C
–V
+V
–mA
+mA
-A
4.5 - Wire the serial port (if installed)
If your controller has serial port tted, wire it as
shown in the applicable diagram. (S2R: RS232, RJ11
terminal, S4S: RS485, screw terminal).
See 4.1B
N/C
SGND
+5V DC (option)
RXD
TXD
N/C
-S2R
D
-
D +
SGND
-S4S
PRO-WEI100-MAN-19V01 (0225) Copyright © 2019 Dene Instruments
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4.6 - Wire the function pins
Connect external switches to enable a function to be
executed when its switch is activated.
Pin functions are user congurable, and can be set up
in 6.2I–K.
See 4.1E and Appendix A
User 1
N/C
User 2
COM
User 3
4.7 - Wire the power supply
DO NOT attempt to wire your controller while the power is on. NEVER connect your
low voltage controller to mains power.
Wire your controller for low or high voltage power supply, as show in the diagrams
below. Check the label on the unit against the colour of the connector:
›Orange =
High voltage (85–265V AC,
95–370V DC)
›Black =
Low voltage (15–48V AC,
10–72V DC)
See 4.1F
High
voltage
(HV)
HV power
supply
−DC
Neutral
AC
+DC
Live
AC
Low
voltage
(LV)
LV power
supply
−DC
Neutral
AC
+DC
Live
AC
Once you have completed the wiring process it is safe to switch on your power
supply. Ensure that your display is functioning before you proceed.
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