Safety Relay
C6702
DIN EN / IEC 60947-5-1
Operating Instructions
Order No.: 2CDC 113 025 M9701
English
2
The safety relay must be installed in switchgear cubicles complying
with degree of protection IP32, IP43 or IP54, depending on the prevailing
environmental conditions.
The products described herein are designed to be components of a customized
machinery safety-oriented control system. A complete safety-oriented system
may include safety sensors, evaluators, actuators and signaling components. It
is the responsibility of each company to conduct its own evalution of the effec-
tiveness of the safety system by trained individuals. ABB AG, its subsidiaries
and affiliates (collectively "ABB") are not in a position to evaluate all of the cha-
racteristics of a given system or product or machine not designed by ABB.
ABB accepts no liability for any recommendation that may be implied or stated
herein. The warranty contained in the contract of sale by ABB is the sole war-
ranty of ABB. Any statements contained herein do not create new warranties or
modify existing ones.
The C6702 safety relay can be used in EMERGENCY STOP devices according to
DIN EN / IEC 60947-5-5 and in safety circuits according to
DIN EN / IEC 60204-1, e.g. in movable guards and protective doors or in non-
contact protective devices in accordance with DIN EN / IEC 61496-1 , electrical
equipment for furnaces in accordance with DIN EN 50156-1 and automatic firing
systems for gas burners in accordance with DIN EN 298 . Depending on the
external circuit, max. Performance Level PL e / Cat. 4 according to
DIN EN ISO 13849-1 and/or SIL 3 according to IEC 62061 can be achieved. The
user must carry out an evaluation of the overall systems.
The C6702 solid-state safety relay 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.
Connect the EMERGENCY STOP button and/or the position switches or light
arrays to terminals Y11, Y12 and Y21, Y22. Connect the ON button in series with
the NC contacts of the external actuators to the supply voltage L+ (24 V DC) and
to terminal Y34. Connect cascading input 1 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, 24. It must be
ensured that the actuators or loads and the C6702 electronic safety relay have
the same frame potential. Paralleling outputs 14 and 24 to increase the load cur-
rent is not permissible.
If electronic sensors (light-array monitoring, etc.) are used, and in single-channel
operation, Y35 must be connected to L+ (24 V DC). For autostart operation, Y32
must be connected directly to L+ (24 V DC) 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!
1
)
Sensor circuits open; Cross-circuit between the sensors; Short-circuit of sensors to frame
2
)
only when using circuit variant with "cross-circuit detection"
3
)
Safe outputs disconnected for test purposes; sufficiently slow actuators are not
affected.
4
)
Delay time running
For further data and accessories see Catalog.
Read and understand these instructions before installing,
operating, or maintaining the equipment.
DANGER
Hazardous voltage.
Will cause death or serious injury.
Turn off and lock out all power supplying this device before working
on this device.
CAUTION
Reliable functioning of the equipment is only ensured with certified compo-
nents.
IMPORTANT NOTICE
Application
Functional description and instructions for connection
Terminal
assignments
Operating
voltage
A1
A2
L+
M
Sensors
Y11, Y12
Y21, Y22
Y35
Y32
Y34
Channel 1 EMERGENCY STOP or position switch
Channel 2 EMERGENCY STOP or position switch
With / without cross-circuit detection
Autostart
ON button, feedback circuit
Input
Outputs
1
14
28
Cascading input
Safe solid-state output
Safe solid-state output, time-delayed
!
Cable lengths
for 2 x 1.5 mm
2
max. 2000 m (total cable length for sensors)
Figures
Fig. I/Ia: Dimension drawings (dimensions in mm) / Terminal designation
Fig. II:
Installation / Connection
Fig. IIIa: Safety data
Fig. IIIb: Application data
Fig. IV: Internal circuit:
¿
power pack,
À
sensors,
Á
Output 1,
Â
Output 2
Fig. V:
Protective-door monitoring, two-channel, autostart;
with voltage-operated e.l.c.b. and delayed disconnection, stop
Fig. VI: EMERGENCY STOP, single-channel, monitored start with additional
ON button; with voltage-operated e.l.c.b. and delayed disconnection,
stop
Fig. VII: EMERGENCY STOP, two-channel, monitored start with additional ON
button; with voltage-operated e.l.c.b. and delayed disconnection
Fig. VIII: EMERGENCY STOP, two-channel, monitored start with additional
ON button and protective-door monitoring, two-channel, autostart
Fig. IX: Light-array monitoring, two-channel, autostart
Fig. X:
Safety mat, two-channel, autostart
Operating states
LEDs
Operation
POWER
RUN
FAULT
PS
EMERGENCY
STOP
ON button
Outputs
ON
not activated was activated
on
activated
1
)
not activated
off
not activated not activated
off
flashes
4
)
activated not
activated
off/on
on startup self-test approx. 7 sec.
Faults
flashes
• Defect in electronics
• Change in terminal assignment
during operation
• Short-circuit to 24V
2)
off
No supply voltage
Technical data
Permissible ambient temperature T
u
Operation / storage
–25 to +60 °C / –40 to +80 °C
Degree of protection to DIN EN / IEC 60529 IP40, IP20 at terminals
Rated insulation voltage
50 V
Rated impulse withstand voltage
500 V
Rated control supply voltage
24 V DC
Rated power
1.3 W
Operating range
0.9 to 1.15 x U
s
Shock resistance (half-sine) as per
DIN EN / IEC 60068
8
g
/ 10 ms
Weight
150 g
Recovery time after EMERGENCY STOP
min. 200 ms
Recovery time after power failure
7 s
Release time after EMERGENCY STOP
30ms/0.05 to 3s or 0.5 to 30s or 5 to 300s
Pickup time
max. 40 ms
Short-circuit protection
no fusing necessary!
Dark time
3)
<
1 ms
Start signal Y34
pulse (min.200 ms / max. 5 s)
PFH / SFF (%)
5,358x10
–11
/ 99,35 %
MTTR / T1
8 h / 10 Years
Utilization category
as per IEC 60947-5-1
Rated operational
voltage
Rated operational current
per output
DC-13
24 V
1.5 A
Note! This product is obsolete. For replacement see Sentry safety relays.
