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13
Signal & sensor error display
Section 13.1 - Signal and sensor error info via display front DRSL-DISPLAY
Sensor error (see limits in the table) is displayed as SE.BR (sensor break) or SE.SH (sensor short). Signals
outside the selected range (not sensor error, see table for limits) are displayed as IN.LO indicating low
input signal or IN.HI indicating high input signal. The error indication is displayed in line 3 as text and
at the same time the backlight flashes. Line 4 of the display is a status line which displays status of relay 1
and relay 2, COM (flashing bullet) indicating correct functioning of DRSL-DISPLAY and arrow up/down
which indicates tendency readout of the input signal. If the figure 1 or figure 2 flashes, the unit has detected
that the setpoint has been exceeded and that the relay is in "delay" mode. When the delay time has passed
and the relay makes/breakes, the relay sign either displays or disappears.
Signal and sensor error indication without display front
Status of the unit can also be read from the red/green LED in the front of the device.
Green flashing LED 13 Hz indicates normal operation.
Green flashing LED 1 Hz indicates sensor error.
Steady red LED indicates internal error.
Relay functions
6 different settings of relay function can be selected.
Setpoint:
The unit works as a single limit switch
Window:
The relay has a window that is defined by a low and a high
setpoint. On both sides of the window the relay has the
same status.
Error function: The relay is activated by sensor error.
Power:
The relay is activated as long as the power is on.
Off:
The relay is deactivated.
Latch:
The relay is latched. Only valid for setpoint and window
function.
Increasing/decreasing: The relays can be set to activate at increasing or decreasing input signal.
Delay: An ON and an OFF delay can be set on both relays in the range
0...3600 s.
Hysteresis: 0.0...100.0%.
22
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