Safety Relay
C576, C577
DIN EN / IEC 60947-5-1
Operating Instructions
Order No.: 2CDC 113 017 M9701
English
2
The relay must be installed in switchgear cubicles complying with degree
of pro-tection 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.
You can use the safety relay C576 in safety circuits as per
DIN EN / IEC 60204-1, e.g. with movable covers and guard doors; the safety relay
C577C577 in EMERGENCY STOP devices as per DIN EN / IEC 60947-5-5. Depen-
ding on the external circuit, 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 achie-
ved. The user must carry out an evaluation of the overall systems.
The safety relay C576/C577 have two release circuits (safety circuits) configured
as NO circuits. The number of release circuits can be increased by adding one or
more C579 extension modules. Three LEDs indicate operating state and function.
When the EMERGENCY STOP button or the limit switch is unlocked and when
the ON button is pressed, the internal circuit of the safety relay and the external
contactors are checked for proper functioning.
On the C577, the ON circuit Y33, Y34 is checked for short-circuit. This means
that a fault is detected when Y33, Y34 is closed before the EMERGENCY STOP
button is closed.
Connect the EMERGENCY STOP button or the limit switch to terminals Y11, Y12,
Y21, Y22. Connect the ON button in series with the NC contacts of the external
contactors (feedback circuit) to terminals Y33, Y34.
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.
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 certi-
fied components.
IMPORTANT NOTICE
Application
Functions and connections
Terminal
assignments
Operating
voltage
A1
A2
L/+
N/-
Sensors
Y11, Y12
Y21, Y22
Y33, Y34
Channel 1 EMERGENCY STOP or limit switch
Channel 2 EMERGENCY STOP or limit switch
ON button, feedback circuit
Outputs
13, 14
23, 24
Release circuit 1 (NO)
Release circuit 2 (NO)
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. III:
Safety data
Fig. IV:
Internal circuit:
¿
PTC fuse,
À
Power pack,
Á
Control logic,
Â
Channel 1,
Ã
Channel 2
Fig. V:
C576 with
Autostart
for guard door monitoring,
Fig. VI: C577 with
monitored start
for EMERGENCY STOP,
!
Operating states
LED
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
• Short-circuit in ON circuit
(only with C577)
open
Cross or ground faults in
EMERGENCY STOP circuit (min. fault
current I
Kmin
= 0.5 A; PTC fuse trips)
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 (half-sine) as per
DIN EN / IEC 60068
8
g
/ 10 ms
Weight
0.240 kg
Recovery time after EMERGENCY STOP
C576
C577
minimum 200 ms
minimum 400 ms
Release time after EMERGENCY STOP
max. 20 ms
Response time
C576
C577
max. 80 ms
max. 30 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
for enabling circuits
and signaling
circuits
Please adhere to the respective user information!
(Order No.: C98130-A7524-A1-05-7419)
The safety relay is protected by an internal self-healing PTC
fuse (multifuse).
Note! This product is obsolete. For replacement see Sentry safety relays.
