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SCU-1 Control Unit



The SCU-1 Control Unit, the main control unit, provides for a HE Series multi-gate machine guarding solution capable of monitoring up to 30 switches in the series. It features built-in LED status indicators for power, output, manual and automatic reset. It is IP55 rated and Din-rail mountable for easy installation.


Supply nominal voltage: 24 VAC/DC (+/- 15 %)
Safety contacts: 2 x NO
Auxiliary contact: 1 x NC
Output contact rating (max): 4 A/230 VAC; 2A/24 VDC(Res.)@Cos=1
Output contact rating (min): 10 V/10 mA
Output contact fuse rating: AC = 5 A; DC = 2.5 A; Quick blow
Drop out time: Deactivation by inputs, 13 ms
Internal fuse: 100 mA Resettable
Internal fuse recovery time: >2 Seconds
Internal switches: Reset Manual / Automatic—Selectable
Max conductor size: 1 x 2.5 mm stranded with sleeves, 1 x 4 mm solid
Installation group (Control unit): C in accordance with VDE0110
IP Rating: Housing IP40, Terminals IP20
Operating temperature: -10C to +55C (85% Humidity max)
Storage temperature: -20C to +60C
Housing material: Polycarbonate Red
Mounting / Fixing: 35 mm Symmetric DIN Rail
Utilization category in accordance with EN 60947-4-1
Safety contacts: AC1 at 230 V: Imin: 10 mA - Imax: 4 A
Safety contacts: DC1 at 24 V: Imin: 10 mA - Imax: 2 A
Air gap creepage in accordance with EN 60947-1: Vibration In Accordance With EN 60068-2-6
Pollution Degree: 2 Weight 210g
Over voltage Category: III Frequency 10-55 Hz
Rated Insulation Voltage: 250 V Amplitude 0.35 mm
Rated Impulse Withstand Voltage: 4.0 KV
Simultaneity Channel 1:
Simultaneity Channel 2:
SAFETY RELATED DATA
PL In accordance with EN ISO 13849-1: PL-e, CAT 4
SIL CL in accordance with EN IEC 62061: SIL 3
PFHd in accordance with EN IEC 62061: 3.62 x 10-09
PFH: 4.43 x 10-09
B10d: 2 X 106
MTTFd: > 100 years (Based on usage rate of 360 days/year, 24 hours/day, 10 operations/hour)
Tm(mission time): 20 years
DC: 96.5%
SFF: 98.2%
APPROVALS
CE: Complies with all relevant sections of the CE marking directive
TUV: CAT 4 SIL3 PLe
EUROPEAN DIRECTIVES: Machinery Directive 2006/42/EC
Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive 2004/08/EC
EUROPEAN STANDARDS
EN ISO 13849-1: Safety of Machinery Safety related parts of control systems
EN ISO 62061: Safety of Machinery - Functional safety of safety related electrical, electronic and programmable electronic control systems
EN 60204: Safety of Machinery Electrical equipment for machines
EN 60947-5-1: Low voltage switch gear and control gear
EN 1088: Interlocking devices associated with guards
EN 60947-5-3: Safety of Machinery Specification for low voltage switchgear and control gear