6
Operating instructions
Safety sensor
RSS260 AS
EN
6. Diagnostic
6.1 LED indications
The LED's have the following meaning (to DIN EN 62026-2):
LED green-red
(AS-i Duo LED):
AS-Interface supply voltage /
AS-Interface communication error /
Slave address = 0 /
Periphery error detected /
Enabling inhibit (tamper protection time) active
Yellow LED:
Device status (enabling status) /
hysteresis signal / device error
6.2 Error
Errors, which no longer guarantee the safe functionality of the
RSS260 AS electromagnetic interlock, cause the safety outputs to be
switched off and are signaled through a flashing pattern of the red LED.
(see table 2).
After fault rectification, the error message can be reset by opening and
closing the relevant guard door. The safety outputs of the safety monitor
can be switched back on, thus enabling the machine.
6.3 Diagnostic information
Table 1: Diagnostic information of the RSS260 AS safety switchgear
The safety switch signals the operational state as well as errors through three coloured LED’s installed on the device.
System condition
LED
Periphery error
Reset
green-red
yellow
AS-i SaW-Code
AS-i duo-LED
Status
FID-Bit
(DI 0 ... DI 3)
Safety guard open
green
Off
0
static 0
Guard door closed
green
on
0
dynamically (authorised operation)
Actuated in limit area
red-green flashing Flashes
1
dynamically (authorised operation)
Enabling inhibit (tamper protection time) active red-green flashing Off
1
static 0
Internal device error / periphery error
red-green flashing Flashes
1)
1
static 0
AS-i error: slave address = 0
or communication error
red
depending on
the condition
0
static 0
1) refer to flash code
Table 2: Error messages / flash codes yellow LED
Flash codes (yellow)
Designation
Autonomous
switch-off after
Error cause
4 flash pulses
Ambient temperature high
0 min
Ambient temperature too high: T > 60 °C
5 flash pulses
Actuator fault
0 min
incorrect or defective actuator
yellow permanent light
Internal error
0 min
Device defective
6.4 Diagnostic signal periphery error
All error messages of the safety switchgear are also transmitted as a
"periphery error" to the control system through the AS-i master.
A "periphery error" (FID input of the AS-i chip) is signaled by the
alternating red and green flashing of the AS-i duo LED on the AS-i
device.
6.5 Read-out of the parameter port
The parameter port P0 to P3 of an AS-i slave can be read out through
the control interface of the AS-i master (see component description) by
means of the "Write parameter" instruction (with hexadecimal value F).
This (non-safe) diagnostic information from the reflected parameters or
the answer to a "Write parameter instruction" can be used by the user
for diagnostic purposes or for the control programme.
Diagnostic information (P0 … P3)
Parameter bit Condition = 1
0
Actuator in
1
Hysteresis signal (FID)
2
Enabling inhibit (tamper protection time) active (FID)
3
Internal device error detected (FID)
Variant with actuator detection (AD) P0 - P3
Parameter bit Condition = 1
0 … 3
Binary number actuator 01 - 15
0 = no actuator detected