ABB C6702 Application Information
14 24
K2
A2
K1
K2
K1
M
A1
L+
Y32 1 Y34
K1
K2
Y21Y35
Y11
Y22
Y12
C6701
M
µC1 µC2
A2
Y12(-) Y22 Y34 28141
A1
Y11
(+)
Y35Y21 Y32
6,3 A
1
1
2
3
4
1 Power pack
2 Sensors
3 Output 1
4 Output 2
Application examples
Electronic
7
Safety relays
ON button and safety gate monitoring category 4/SIL 3
L+
C6701
7
C6702
Y11
Y12
A1
A1 Y32 1 Y34
C6701
Y21Y35
Y11
Y21Y35
Y32 1 Y34
A2
Y22
Y12
A2
Y22
14 24
14 24
EIN
K1
K2
K1
K2
Safety mat, two channel, autostart category 3/SIL 2Emergency Stop, two channel, monitored start with additional
M
M
K1 K2
Application
The C 6702 safety combination can be used in EMERGENCY STOP circuits
according to EN 418 and in safety circuits according to
EN 60 204-1 (11.98), e.g. in movable guards and safety gates. Depending on the
external circuit elements, safety category 4 according to DIN EN 954-1 or SIL 3
according to IEC 61508 can
be achieved.
Functions and connections
The C 6702 solid-state safety combination has one safe solid-state output and one
time-delayed safe solid-state output. Three LEDs indicate the operating state and
the function.
When the device is put into operation it runs through a self-test to test the correct
functioning of the internal electronics. All internal circuit components are monitored
for faults cyclically during operation.
The EMERGENCY STOP button and/or the position switches or light arrays are
connected to terminals Y11, Y12 and Y21, Y22. The ON button is connected in
series with the NC contacts of the external.
The cascading input 1 is connected either via a safe output or directly to the
supply voltage L+ (24 V DC). External actuators or loads can be switched via safe
outputs 14, 28. It must be ensured that the actuators or loads and the C 6702
electronic safety combination have the same frame potential. Paralleling outputs
14 and 28 to increase the load current is not permissible.
If electronic sensors (e.g. light-array monitoring) are used in
single-channel operation, Y35 must be connected to L+ (24VDC).
For autostart operation, Y32 must be connected directly to L+ (24VDC) and Y34
must be connected to it via NC contacts of the external actuators.
Use a power pack to IEC 60536 safety class III (SELV or
PELV) for power supply!
Terminal marking
Supply voltage A1 L/+
A2 M
Inputs Y11, 12 Channel 1 EMERGENCY STOP or
position switch
Y21, 22 Channel 1 EMERGENCY STOP or
position switch
Y35 With / without cross circuit detection
Y32 Autostart changeover switch
Y34 ON button, feedback circuit
Input 1 Cascading input
Outputs 14 Safe solid state output
28 Safe solid state output, time delayed
Operation
LEDs Operation
POWER RUN FAIL PS E-STOP ON Outputs
ON non activated on
activated
activated non off
1 activated
non non off
activated activated
activated non off/on
fl ashes activated
fl ashes
on start up self test approx. 7 sec.
Fault
Change in terminal
fl ashes assignment during
operation
Short circuit to 24V 2
No supply voltage
Defect in electronic off
Fault clearance
1. Switch supply voltage off.
2. Clear fault or replace device.
3. Switch supply voltage back on.
Cable length
for 2 x 1.5mm
2
max. 2000m total cable length for
150nF/km sensors
Internal circuit
1 Sensor circuits open; Cross circuit between the sensors; Short circuit of sensors to frame
2 Only when using device with "cross circuit detection".
7.36 Low Voltage Products & Systems
AC 1000 - 11/03
Loading...