Siemens UL489 Quick Start Manual page 9

Configurable Digital Output Module
The configurable digital output module can be adjusted via:
- the BDA or BDA Plus units
- the PROFIBUS-DP/MODBUS communications interface
- Switch ES Power software
- WLConfig software
Digital output module
With the digital module, up to 6 binary signals can be transmitted
Terminal assignment 1 – switch position to the left
L Signaling contact overload trip
S Signaling contact short-time delay short circuit trip
I Signaling contact instantaneous short circuit trip
G Signaling contact ground fault trip
G ALARM Signaling contact ground fault alarm
N Signaling contact neutral conductor trip
Output assignment 2 – switch position to the right
PRE TRIP Signaling contact leading overload trip signal (time delay 0s)
TU ERR Signaling contact trip unit fault (ETU)
LD SHED Signaling contact load shedding
LD REST Signaling contact load restore
TEMP Signaling contact temperature alarm
I UNBAL Signaling contact current phase unbalance
Time delay setting
TRIP 0....2s
ALARM 0....2s
The time delay setting determines how long a signal of the overcurrent release must be available
until the associated LED lights up and the signal is set at the corresponding output.
Digital output modules with relay outputs provide changeover contacts at their outputs, digital
output modules with optocoupler outputs provide electronic NO contacts at their outputs.
Current carrying capacity of the outputs
Relay output 250 VAC, 12 A
25 VDC, 12A
Optocoupler 12 VAC, 150 mA
output 24 VDC, 100mA
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