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6. Display and operating buttons
1
4
2
5
3
6
Green LED - operating voltage is applied
1
State when operating voltage is applied:
at uF Ü relay activated
at bF Ü relay deactivated
Numeric display:
2
- Error display
- Display of parameter settings
3
Red LED - Error signal / output relay
4
Acknowledgement button (Q)
5
-button: parameter settings upwards
6
-button: parameter settings downwards
Error display
If the switching thresholds are overrun or underrun the current value
the numeric display will indicate the kind of error.
At error message
Ü Relay deactivated (setting uF)
Ü Relay activated (setting bF)
Kind of error
Display
Current underruns
the lower threshold
Current overruns
the upper threshold
The red LED lights up every time an error is
detected - error signal.
Selectable parameters
All parameters are stored in a EEPROM and are saved in case of
power outage.
Relay function
Setting of function. Monitoring function (uF) or operating function
(bF). The following chart applies for the relay function:
Operating
Relay
Relay
Green
Current
voltage
at uF
at bF
LED
OFF
any
OFF
OFF
OFF
ON
too low
OFF
ON
OFF
ON
correct
ON
OFF
ON
ON
too high
OFF
ON
OFF
Factory setting: uF
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Current type
Setting of the monitored current for alternate current (AC) or
direct current (DC).
Factory setting: AC
Measuring range
Setting of the current value to be monitored.
Measuring range (b1) = 0.0 ... 1 A at contacts B1-B3
Measuring range (b2) = 0.0 ... 15 A at contacts B2-B3
Factory setting: b2
Release hysteresis
The hysteresis is indicated in percent in relation to the respective
threshold. Hysteresis can be set from 1 % to 30 %. The overcurrent
state starts when the upper threshold plus hysteresis are exceeded.
The overcurrent state stops if the upper threshold is again underrun.
Example: With a hysteresis of 15 % and a switching threshold of
0.6 A the overcurrent starts at 0.6 A * 1.15 = 0.69 A and stops at
0.6 A.
The undercurrent state starts if the lower threshold less hysteresis
is underrun. The undercurrent state stops is the lower switching
threshold is exceeded again.
Example: With a hysteresis of 15 % and a switching threshold of
0.4 A the undercurrent starts at 0.4 A * 0.85 = 0.34 A and stops
at 0.4 A.
Factory setting: 10 %
Lower switching threshold
Threshold setting to monitor that the current does not fall below
the set threshold value
Measuring range b1:
0.00 A ... 0.09 A
in steps of 0.01 A and
0.10 A ... 1.00 A
in steps of 0.1 A
Measuring range b2:
0.00 A ... 0.90 A
in steps of 0.1 A;
1.0 A ... 9.8 A
in steps of 0.2 A and
10 A ... 15 A
in steps of 1.0 A
Factory setting: 0 0 (off) in measuring range b1 and b2
Upper switching threshold
Threshold setting to monitor that the current does not exceed the
selected threshold value.
Measuring range b1:
0.01 A ... 0.09 A
in steps of 0.01 A and
0.10 A ... 1.00 A; 99 A
in steps of 0.1 A
Measuring range b2
0.10 A ... 0.90 A
in steps of 0.1 A;
1.0 A ... 9.8 A
in steps of 0.2 A and
10 A ... 15 A; 99 A
in steps of 1.0 A
The upper threshold can not be less then the lower one.
Factory setting: 9 9 (OFF) in measuring range b1 and b2
Starting override
Starting override starts when the operating voltage is switched on.
Current monitoring only starts after the override time.
Starting override time can be set from 0 to 99 seconds.
Factory setting: 0 seconds
Response delay
The response delay defines the time an error (falling below or
exceeding the thresholds) has to exist before it is signalled at the
relay and the display. Also, the current has to be normal again for
Red
the same time before the error indication is automatically turned
LED
off. Response delay can be set from 0.1 to 9.9 seconds.
OFF
Factory setting: 5 seconds
ON
Error memory
OFF
If the error memory is deactivated (FA) the relay is automatically
ON
reactivated if no more error is detected during the response delay
time.
If the error memory is activated (FE), the detected error is stored
until it is acknowledged with the [Q] button. Only then the relay
will switch back to its normal position.
Factory setting: FA
Normal operation
If the current is in the allowed range it is indicated by one of the
following ways. The green LED is lighting, the red LED is off.
Display
...
current 0 - 90 mA
...
current 100 - 990 mA
...
current 1.0 - 9.9 A
...
current 10 - 15 A
If the current is not within the allowed range; the red LED is
lighting and the green one is off. The error is indicated in the
seven-segment-display (see error indications).
Button functions
Parameter storing
When button [Q] is pressed the parameter set last is stored in the
EEPROM and the next parameter setting appears.
Repeat function of the buttons
Short pressing of the buttons [ ] or [ ] reduces or increases the
value by steps, if the button is kept pressed the value changes
stepless.
Timeout
If no button is pressed in a three minutes period during parameter
setting the setting procedure is interrupted. The 7-segment display
turns off and the last parameter is not stored in the EEPROM.
7. Parameter setting
Operating voltage has to be applied to the device for
parameter setting!
7.1 Activate the setting procedure
To activate the procedure
Display
press both buttons
simultaneously.
The display shows the set relay
function.
factory setting
7.2 Setting of relay function
Button
increases the value
Button
lessens the value
Possible indications
Monitoring
Operating
function
function
Display
Button [Q] stores the setting.
The
display
shows
the setting of the type of
current.
Factory setting
7.3 Setting of the type of voltage
Button
increases the value
Button
lessens the value
Possible indications
Alternate
current
Display
Button [Q] stores the value.
The display shows now the
set measuring range.
Factory setting
7.4 Setting of measuring range
Button
increases the value
Button
lessens the value
Possible indications
Measuring
range 1.0 A
Button [Q] stores the value.
Display
The display shows now the
set hysteresis value.
Factory setting
7.5 Setting of release hysteresis
Button
increases the value
Button
lessens the value
Possible indications
lowest value
hysteresis 1 %
Button [Q] stores the value.
Anzeige
The
the set value of the lower
switching threshold.
Factory setting
now
Direct current
Measuring
range 15 A
highest value
hysteris 30 %
display
shows
now
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