IDEC SG4 Type 4 Finger & Hand - Manual (Page 44)

SG4-B Series Instruction Manual
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7. DIAGNOSTIC FUNCTIONS
7.1. User interface
Curtain operating status is visualised through an one-digit display
present on both the receiver and emitter units.
SG4-B also has four LEDs on the receiver and two LEDs on the
emitter.
Fig.25 shows all LEDs signalling modes: OFF, ON and BLINKING.
Fig. 25
LED OFF
LED BLINKING
LED ON