EMC INDUSTRIAL GROUP LTD Inputs
MW93A_IM_ALL_SV6.09f_en 34/59
Q22352 AI1 signal P 8710 mV/V
Q22353 AI1 signal Q 8712 mV/V
Q22354 AI1 signal R 8716 mV/V
Q22355 AI1 signal S 8718 mV/V
Displays each loadcell signal when scanning has been enabled. (refer to Q22314)
Q22350 loadcell check 8914, g7 off=0
Set to 1 (on) to measure mV/V signal of each loadcell.
Loadcell trim
These settings are used to trim the input gain of up to four loadcells. This can be used to correct for
sensitivity differences when using 2, 3 or 4 loadcells. A typical application is corner adjustment of a
platform scale.
Q22361 trim 1 [-1250 to 1251] 8132, g7 disabled =1251
Q22362
trim 2 [-1250 to 1251]
8134, g7 disabled =1251
Q22363
trim 3 [-1250 to 1251]
8136, g7 disabled =1251
Q22364
trim 4 [-1250 to 1251]
8138, g7 disabled =1251
The trim settings are set to 1251 when not in use, which sets the excitation voltages to their maximum.
Corner adjustment procedure:
1. Set trim 1 through to excitation 4 to the value 0.
2. Calibrate the scale (zero and span) with the test weights applied centrally.
3. Apply the test weight as close to loadcell1 as possible, adjust the setting ‘trim 1’ so that the
weight reading corresponds to the test weight value.
4. Repeat for each of the remaining loadcells.
Current/Voltage input (remote flowrate setpoint)
When AI2 is available, a remote setpoint signal can be connected as either a current (eg 4 to 20mA) or
as a voltage (eg 0 to 10V). The transmitter auto-detects whether the current or voltage input is active
and uses the relevant calibration from the following settings.
Q2241 AI2 current low 8140, g2 4.000 mA
This is the low point of the analog signal (when using the current input) within the range 0 to 20 mA
(typically set this variable to 4 mA).
Q2242 AI2 current high 8142, g2 20.000 mA
This is the high point of the analog signal (when using the current input) within the range 0 to 20 mA
(typically set this variable to 20 mA).
Q2243 AI2 voltage low 8144, g2 0.000 V
This is the low point of the analog signal (when using the voltage input) within the range 0 to 10 V
(typically set this variable to 0 V).
Q2244 AI2 voltage high 8146, g2 10.000 V
This is the high point of the analog signal (when using the voltage input) within the range 0 to 10 V
(typically set this variable to 10 V).
Q2245 AI2 signal type 8148, g2
11
3
This allows correct units and ranging to be applied to the AI2 signal. For example a setting of 1 con-
verts the signal to a weight, a setting of 3 converts the signal to a flowrate.
Q2246 AI2 signal low 8150, g2
12
0 t/h,kg/h
This is the signal that should correspond with the ‘AI2 current low’ or ‘AI2 voltage low’ point.
Q2247 AI2 signal high 8152, g2
12
1000 t/h,kg/h
This is the signal that should correspond with the ‘AI2 current high’ or ‘AI2 voltage high point.
Q2248 AI2 current/voltage 8720, g2 mA or V
Displays the remote analog signal as a current or voltage.
Q2249 AI2 signal 8722, g2 t/h,kg/h
Displays the remote analog signal in engineering units.
Input options
Q2201 local/remote option 8188, g8 0
11
0=general, 1=weight, 2=belt speed, 3=flowrate, 4=total, 5=belt loading, 6=length, 7=short length, 8=current, 9=voltage
12
Signal units are determined by units of AI2 signal type
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