Rockwell Automation 440R Lichtgittermodul MSR22LM mit umschaltbaren Funktionen Light curtain controller - Manual (Page 16)

16
Troubleshooting
When a failure is detected the relays K1, K2 are de-energized.
The diff erent failures are indicated by diff erent fl ashing codes on the LEDs
run 1 and run 2. The failures are split into 2 groups.
Failure group 1:
System failure
On occurrence of such a failure the unit locks out and shows the failure
code, the module can only be reset by switching the unit off and on again.
These failures are only indicated on LEDs run 1 and/or run 2. At the same
time 2 diff erent codes can be indicated on the 2 LEDs. The outputs (48 and
58) are always off in this state.
Failure group 2:
Function failure
These failure codes are only displayed on LED run 1 and output 48 while
LED run 2 remains on permanently.
The relays K1, K2 are de-energized in this state, the module is still active and
the relays can be activated by pressing the start button after the failure has
been removed.
System failure: (indicated only on LEDs run 1 and/or run 2)
No.* ) Description Measures and notes
0 Internal failure (LEDs off )
If both LEDs are off the relay is
defective and has to be sent
back for examination.
5 Faulty setting
1) The switches on both
channels are not identically
2) The selected setting is not
allowed.
6 Undervoltage detection
Left LED is fl ashing when the
voltage drops under the allowed
level (< approx. 0.85 UN). After
returned to normal a reset is
made (similar to power up of the
unit).
6 Overvoltage detection
The right LED is fl ashing when the
voltage rises over the allowedlevel
of > approx. 1,15 UN + 5 % residual
ripple.
7 Input failure
1) A short circuit occurred on
the start button or machine
contact input 2)
2) Both signals of one LC are
not identically (short circuit,
broken wire of defective LC)
8
Failure on output contacts
K1, K2
Please check the output K1, K2
circuit and contact current,
relay has to be repaired.
9
10
11
Internal failure
Please try to evaluate the
circumstances that led to this
fault and check with the
supplier or manufacturer.
12
13
Internal failure The relay has to be repaired.
*) No.: number of fl ash pulses in a series
Troubleshooting
Function failure: indication on LED run 1 and output 48
No.* ) Description Measures and notes
1 LC failure
1) One LC has been interrupted.
2) All LC inputs that are not
used must be bridged:
LC 2: S21-S22, S23-S24
LC 3: S31-S32, S33-S34
2 Failure on start button
1) During start up of the unit
and initialising the start
button must not be pressed
2) The start button must not
be pressed longer than 3 s.
3
Protective operation failure
in feed back circuit
1) An operating mode with feed
back circuit ist selected and and
the circuit connected to S41-S42
is not closed before activation
of K1, K2.
3
Stepping operation
contact failure
1) The machine contact is not
closed in initial position (waiting
for start)
2) With contact type 1 the machine
contact was not closed at the end
of the required fi rst interruption
of the light curtain.
4
Muting failure
(blocked LC)
1) The selected max. muting
time had been exceeded
(muting lamp on).
4
Muting failure
(lamp)
2) The muting lamp is not
connected between terminals
48 and M1 and M2.
3) The necessary bridge is not
connected between terminal
S41-S42.
4) The muting lamp is defective.
5) The measuring circuit for the
muting lamp is defective,
the unit has to be repaired.
5
Stepping operation
(key failure)
1) Both contacts of the key switch
to select the number of steps
are open
*) No.: number of fl ash pulses in a series
Status indication
run 1 and output 48 are fl ashing fast with 3 Hz
Muting operation:
Override possible
Minimum one muting sensor is
active, LC 1 is interrupted and the
start button is pressed. After 3 s
with activated start button the
override is started for max. 12 s.
Stepping operation:
Wait for access
The unit is waiting for the required
number of interruptions of the LC
so that the safety relays can be
activated.
Maintenance and repairs
- The device contains no parts that require maintenance.
- In case of failure, do not open the device but send it to manufacturer
for
repair.