Safety Relay
C571, C573
DIN EN / IEC 60947-5-1
Operating Instructions
Order No.: 2CDC 113 016 M9701
English
2
2CDC 113 016 M9701
The devices must be installed in switchgear cabinets with an adequate
degree of protection which takes the ambient conditions into account.
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 char-
acteristics 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.
You can use the safety relays C571 / C573 in EMERGENCY STOP devices as
per DIN EN / IEC 60947-5-5 and in safety circuits as per DIN EN / IEC 60204-1,
e.g. with movable covers and guard doors.
Using this device, max. Performance Level PL e / Cat. 4 according to
DIN EN ISO 13849-1 and/or SIL 3 according to DIN EN / IEC 62061 can be
achieved. Depending on the estimated risk, it may be necessary to carry out
additional measures in the sensor circuit (e.g. shielded cable laying). When
C571 / C573 is used as a contact extension, the PL / Cat. / SIL that can be
achieved is the same as for the basic device. The user must carry out an evalu-
ation of the overall systems.
Safety relay C573 has three release circuits (safety circuits) which are config-
ured as NO circuits and a signal circuit configured as an NC circuit.
Safety relay C571 has two release (safe) circuits which are configured as NO
circuits. The number of release circuits can be increased by adding one or more
C579 extension modules. Three LEDs indicate the operating state and function.
When the EMERGENCY STOP button or the limit switch is unlocked and when
the ON button is pressed, the internal circuits of the safety relay and the exter-
nal contactors are checked for proper functioning.
Connect the EMERGENCY STOP pushbutton or the limit switch in the supply
cable from A1 to +24 or L24 V. To evaluate over two channels, connect
Channel 2 from A2 to 0 V or N. Connect the ON button in series with the NC
contacts of the external contactor (feedback circuit) to terminals Y1 and Y2
(for circuit examples, see Figs. V to VIII).
Be sure to fit the specified fuses. Otherwise safe interruption in
the event of a fault cannot be guaranteed.
For further data and accessories see Catalog.
Reliable functioning of the equipment is only ensured with certified components.
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
Functions and connections
Terminal
assignments
Operating
voltage
A1
A2
L/+
N/
–
Sensors
Y1, Y2
ON button, feedback circuit
Outputs
13, 14
23, 24
33, 34
41, 42
Release circuit 1 (NO)
Release circuit 2 (NO)
Release circuit 3 (NO)*
Signal circuit (NC)*
*) with C573 only
Cable lengths
for 2 x 1.5 mm
2
max. 1000 m (total cable length for
sensors and power supply lines)
Figures
Fig. I:
Dimension drawings (dimensions in mm)
Fig. II: Installation / Cage Clamp
Fig. IIIa: Safety data
Fig. IIIb: Application data
!
Figures
Fig. IV: Internal circuit:
¿
PTC fuse,
À
power pack,
Á
control logic,
Â
Channel 1,
Ã
Channel 2
Fig. V: EMERGENCY STOP, single-channel
Fig. VI: EMERGENCY STOP, two-channel
Fig. VII: Guard door monitoring, single-channell
Fig. VII: Guard door monitoring, two-channell
Fig. IX: C571 / C573 as a contact extension
Operating states
LEDs
Operation
POWER Channel 1 Channel 2 PS
EMERGENCY
STOP
ON
Release
circuits
ON
not activated
was activated closed
activated
not activated open
not activated
not activated open
Faults
• Relay fusion-welded
• Motor contactor fusion-welded
• Defect in electronics
open
Cross or ground faults in
EMERGENCY STOP circuit (min. fault
current I
Kmin
= 0.5 A; PTC fuse trips) or
supply voltage missing
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 U
i
300 V
Rated impulse withstand voltage U
imp
4 kV
Rated control supply voltage U
s
24 V AC / DC
Rated power
1.5 W
DC operating range
0.85 to 1.2 x U
s
AC operating range
0.85 to 1.1 x U
s
Shock resistance
8
g
/ 10 ms
Weight
0.240 kg
Recovery time
min. 200 ms (DC) / 300 ms (AC)
Release time
max. 200 ms
Response time
max. 150 ms
Utilization category
as per VDE 0660-200,
DIN EN / IEC 60947-5-1
Rated operational
voltage U
e
(V)
Rated operational current I
e
with all release circuits loaded
(A)
50 °C 60 °C
70 °C
AC-15
230
5
4.5
4
DC-13
24
5
4.5
4
115
0.2
0.2
0.2
230
0.1
0.1
0.1
Continuous current I
th
5
4.5
4
Short-circuit
protection
Fuse links
DIAZED
for release circuit
Duty class
gL (gG) 6 A / quick response 10 A
and signal circuit
Duty class
gL (gG) 6 A / quick response 6 A
for enabling circuits
and signaling circuits
Please adhere to the respective user information!
(Order No.: C98130-A7524-A1-05-7419)
Note! This product is obsolete. For replacement see Sentry safety relays.
