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Due to RMS continuous product improvement policy this information is subject to change without notice. 1S20/Issue R/28/02/2010 - 5/11
Figure 7: 1S20 rear view showing configuration switches
Configuration
CONFIGURATION SWITCH
The configuration switches are accessible to the user by first
unplugging the electronic module from the terminal base as
shown in Figure 7.
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
1: ARC SENSOR 2
2: LATCHING TRIP LED
3: INDEPENDENT ARC TRIP
4: LATCHING TRIP CONTACTS
5: ARC SENSOR 3
CONFIGURATION SWITCH SETTINGS
The internal wiring label identifies the position of the following
switch functions:
Switch 1: Arc sensor 2
ON - Arc Sensor 2 fitted
OFF - Arc Sensor 2 not fitted
Switch 2: Arc fault trip indication LED reset
ON - Latching until manually reset
OFF - Automatic self reset (Extinguish) after 4 hours
Will also reset contacts set for latching function
Switch 3: Independent arc trip output contacts
ON - Arc Sensor 1 activates trip output contact 1 &
Arc sensor 2 or 3 activates trip output contact 2
OFF - Arc Sensor 1, 2 or 3 activate both trip outputs
Switch 4: Arc fault trip output contact reset
ON - Latching – Reset with trip LED
OFF - Self reset after 2s
Switch 5: Arc sensor 3
ON - Arc Sensor 3 fitted
OFF - Arc Sensor 3 not fitted
