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 effecti-
veness 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 charac-
teristics of a given machine 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 combination C571-AC in EMERGENCY STOP devices as
per EN 418 and in safety circuits as per VDE 0113 Part 1 (11.98) and/or
EN 60 204-1 (12.97), e.g. with movable covers and guard doors. Depending on
the external connections, safety categories 3 and 4 as per DIN EN 954-1 are
achievable.
When the safety combination is used in "Automatischer Start" mode, automatic
restarting (as per EN 60 204-1, Sections 9.2.5.4.2 and 10.8.3) must be prevented
by the higher-level control system in the event of EMERGENCY STOP.
The Safety combination C571-AC has two release (safe) circuits which are confi-
gured 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 combination and the
external contactors are checked for proper functioning.
Connect the EMERGENCY STOP button or the limit switch to terminals Y11, 12
and Y21, 22. The ON button is connected in series with the NC contacts of the
external contactor (feedback circuit) at terminals Y33, 34.
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 Main catalog, part1.
WARNING:
HAZARDOUS VOLTAGE
CAN CAUSE ELECTRICAL SHOCK
AND BURNS.
DISCONNECT POWER BEFORE PROCEEDING
WITH ANY WORK ON THIS EQUIPMENT.
IMPORTANT NOTICE
Application
Functions and connections
Terminal
assignments
Operating
voltage
A1
A2
L
N
Sensors
Y11, 12
Y21, 22
Y33, 34
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
150 nF/km
max. 1000 m (total cable length for
sensors)
Figures
Fig. I:
Dimension drawings (dimensions in mm)
Fig. II:
Installation / Cage Clamp
Fig. III:
Internal circuit:
¿
power pack,
À
control logic,
Á
Channel 1,
Â
Channel 2
Fig. IV: Two-channel autostart for contactor monitoring,
safety category 3 and 4 per EN 954-1
Figures
Fig. V:
Two-channel
EMERGENCY STOP with additional ON
button, safety category 3 and 4 per EN 954-1
Fig. VI:
Single-channel
EMERGENCY STOP with additional
ON button, safety category 2 per EN 954-1
Operating states
LEDs
Operation
POWER Channel 1 Channel 2 PS
EMERGENCY
STOP
ON Release
circuits
ON
not activated 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
Fault
clearance
1. Switch supply voltage off.
2. Clear fault or replace device.
3. Switch supply voltage back on.
Technical data
Permissible ambient temperature T
u
Operation/storage
-25 to +60°C/-40 to +80°C
Degree of protection to EN 60 529
IP 40, IP 20 at terminals
Rated insulation voltage U
i
300 V
Rated impulse withstand voltage U
imp
4 kV
Rated control supply voltage U
s
C571-AC-115
115 V AC
C571-AC-230
230 V AC
Rated power
1.5 W
Operating range
0.85 to 1.1 x U
s
Shock resistance (half-sine) as per IEC 60068
8
g
/10 ms
Weight
0.250 kg
Recovery time after EMERGENCY STOP
minimum 120 ms
Release time after EMERGENCY STOP
max. 100 ms
Response time
max. 500 ms
Utilization
category
as per DIN VDE 0660
Part 200, IEC 60947-5-1
Rated operational
voltage U
e
Rated operational current I
e
with all release circuits loaded
AC-15
230 V
6 A
DC-13
24 V
6 A
115 V
0,2 A
230 V
0,1 A
Continuous current I
th
6A
Short-circuit protection
for release circuit
Fuse links
DIAZED
Duty class
gL(gG) 6 A
quick response 10 A
2
Safety Combination
C571-AC
DIN EN 60 439 Part 1, VDE 0660 Part 500
Instructions
Order No.:
1SAC 105 198 S4001
English
9260224.book Seite 1 Montag, 3. Juni 2002 11:04 11
