NORSTAT Safety Relays - Handbuch (Seite 31)

application guide safety relays from riese electronic page 30
function diagram RS-NAGU.1
Positive intern voltage (appr. 24 V DC) is supplied at all terminals xx+.
Negative intern voltage ( ground ) is supplied at all terminals xx-.
Muting sensors 1 and 4 respectively 2 and 3 are considered to be each a group. At ON or OFF condition
the time difference between both muting groups must not exceed 3 seconds. Muting will remain as long
as two muting sensor group become inactive. Muting will only be switched off 0,25 s after deactivation of
three of the four muting sensors. After recognition of errors all safety outputs will be switched off and the
appropriate error code will be indicated. Pressing of the RESET button will ensure prompt switch-off of
the device. The safety output of the semiconductors as well as the muting lamp will be checked frequently
under switched on condition.
RS-NAGU.1 : 3 safety semiconductor outputs.
RS-NAGU.2f : 3 normally open safety (relay) 3 signal outputs (muting and safety light barrier).
ƒ
O1 = released
ƒ O2 = no signal from BWS
ƒ 73-74 = muting active Æ Example for the control of the outputs - from page93.
+ Q Q
_
MS2+ MS2P MS2N MS2-
monitoring of muting sensor group 2
sender of
light barrier
failsafe dual channel microcontroller circuit
monitoring of muting sensor group 1
+ Q Q
_
MS4+ MS4P MS4N MS4-
+ Q Q
_
MS1+ MS1P MS1N MS1-
MS 1 MS 4 MS 2
ESS+ ESS EST+ EST
monitored
start monitored
keyswitch
ERK ERK+ 53
monitored
feedback
circuit
Output / monitoring
of muting bulb
Y2 Y1
RS - NAGX4
+ 24V
3 solid
state
safety
outputs
RS - NAGU.1
+ Q Q
_
MS3+ MS3P MS3N MS3-
MS 3
24
33
34
23
U21 K21 A2
K22
RS - NAGX4
Output / monitoring of
light barrier
receiver of light barrier
63 BWS1W BWS1P
+ 24V
Q
+ 24V
BWS2P BWS2W
14
13
24V A1
K1
+ 24V DC
Q
_
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