Siemens SIRIUS 3RK3 - Diagnostics Via Leds; Displays on the 3 RK3 Basic

Diagnostics / service
8.2 Diagnostics via LEDs
Modular Safety System 3RK3
238 System Manual, 10/2008, 926 2530-02 DS 02
8.2 Diagnostics via LEDs
8.2.1 Displays on the 3RK3 Basic
LED Display Description
off No voltage, undervoltage, overvoltage
green Device OK, user program in safety mode
green flashing System power-up
flickering green Device OK, user program in test mode
yellow User program stopped; device in safe state (configuring
mode; configuration not released; no configuration)
yellow flashing Factory settings restored
flickering yellow See Restoring factory settings (Page 284)
red Device defective
flashing red Error in configuration
DEVICE
flickering red See
Restoring factory settings (Page 284)
off No group error
red Group error (communications error, etc.)
SF
flashing red Group error: logic error (sequence, etc.)
off Input signal not present
green Input signal present
green flashing
(1.75 s on / 0.25 s off)
Error detected (cross-circuit at input)
Input signal present
IN1, IN2,
IN3, IN4,
IN5, IN6,
IN7, IN8
green flashing
(0.75 s on / 1.25 s off)
Error detected (cross-circuit at input)
Input signal not present
off Output signal not present Q1, Q2
green Output signal present