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Note! This product is obsolete. For replacement see Sentry safety relays.
Safety Relay
Operating Instructions
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.
The relay must be installed in switchgear cubicles complying with degree
of pro-tection IP32, IP43 or IP54, depending on the prevailing environmental
conditions..
IMPORTANT NOTICE
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.
Application
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.
Functions and connections
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.
Terminal
Operating
A1
assignments
voltage
A2
Sensors
Y11, Y12
Y21, Y22
Y33, Y34
Outputs
13, 14
23, 24
2
Cable
for 2 x 1.5 mm
lengths
Figures
Fig. I:
Dimension drawings (dimensions in mm)
Fig. II:
Installation/Cage Clamp
Fig. III:
Safety data
Fig. IV: Internal circuit:
Á
Control logic,
Fig. V:
C576 with Autostart for guard door monitoring,
Fig. VI: C577 with monitored start for EMERGENCY STOP,
2
L/+
N/-
Channel 1 EMERGENCY STOP or limit switch
Channel 2 EMERGENCY STOP or limit switch
ON button, feedback circuit
Release circuit 1 (NO)
Release circuit 2 (NO)
max. 1000 m (total cable length for
sensors and power supply lines)
PTC fuse,
À
Power pack,
¿
Â
Channel 1,
Ã
Channel 2
Order No.: 2CDC 113 017 M9701
Operating states
LED
Operation
POWER
Channel 1 Channel 2 PS
ON
Faults
• Relay fusion-welded
• Motor contactor fusion-welded
• Defect in electronics
• Short-circuit in ON circuit
Cross or ground faults in
EMERGENCY STOP circuit (min. fault
current I
Technical data
Permissible ambient temperature T
u
Operation / storage
Degree of protection to DIN EN / IEC 60529
Rated insulation voltage U
i
Rated impulse withstand voltage U
imp
Rated control supply voltage U
s
Rated power
DC operating range
AC operating range
Shock resistance (half-sine) as per
DIN EN / IEC 60068
Weight
Recovery time after EMERGENCY STOP
Release time after EMERGENCY STOP
Response time
Utilization category
Rated operational
as per VDE 0660-200,
voltage U
e
DIN EN / IEC 60947-5-1
(V)
AC-15
230
DC-13
24
115
230
Continuous current I
th
Short-circuit
Fuse links
protection
for release circuit
Duty class
for enabling circuits
Please adhere to the respective user information!
and signaling
(Order No.: C98130-A7524-A1-05-7419)
circuits
The safety relay is protected by an internal self-healing PTC
fuse (multifuse).
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.
C576, C577
DIN EN / IEC 60947-5-1
English
EMERGENCY
ON
Release
STOP
circuits
not activated was activated closed
activated
not activated open
not activated not activated open
open
(only with C577)
= 0.5 A; PTC fuse trips)
Kmin
–25 to +60 °C / –40 to +80 °C
IP40, IP20 at terminals
300 V
4 kV
24 V AC / DC
1.5 W
0.85 to 1.2 x U
s
0.85 to 1.1 x U
s
8 g / 10 ms
0.240 kg
C576
minimum 200 ms
C577
minimum 400 ms
max. 20 ms
C576
max. 80 ms
C577
max. 30 ms
Rated operational current I
with all release circuits loaded
(A)
50 °C
60 °C
70 °C
5
4.5
4
5
4.5
4
0.2
0.2
0.2
0.1
0.1
0.1
5
4.5
4
DIAZED
gL (gG) 6 A / quick response 10 A
e
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