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Interlock Switches

Non contact Switches

Sipha Control Units

Description

With the increasing speed and complexity of applications a simple

magnetic switch may be insufficient to meet the increased risks,

therefore Sipha’s design incorporates several magnetically sensitive

elements which must be triggered in a particular sequence to operate

correctly. The Sipha sensor, designed to operate with its own

actuator, helps prevent defeatability by a simple magnet.

The control unit is available in three types. The Sipha 1 control unit

operates on 24V AC/DC and offers 1 N.O. safety output and 1 N.C.

solid state auxiliary output. The Sipha 2 control unit operates on

either 24V AC/DC, 110V AC or 230V AC and offers 2 N.O. safety

outputs and 1 N.C. auxiliary output. The Sipha 6 has wiring

terminals for up to 6 sensors, a delayed output for Category 1 stops

and offers the same wide range of power supply capability as the

Sipha 2 control unit. Between 2 and 6 Sipha sensors can be directly

connected to the Sipha 6 control unit. An internal DIP switch mutes

the unused connections to sensors 1, 2, 3 and 4. This allows for

individual monitoring to each interlock and provides enhanced

safety integrity when compared to six interlocks running off a single

Sipha 2 control unit.

The Sipha control units are designed to operate with the Sipha

sensors and actuators. The controllers have automatic reset.

Features

• Non contact actuation

• Magnetic coded sensing

• Control Unit acts as safety relay

• Four types of switches

Specifications

Standards

EN954-1, ISO13849-1, IEC/EN60204-1,

NFPA79, EN1088, ISO14119,

IEC60947-5-1, ANSI B11.19, AS4024.1

Category

Sipha 1 & 2

Sipha 6

Cat. 3 per EN954-1

Cat. 4 per EN954-1

Approvals

CE marked for all applicable directives,

Power Supply

Sipha 1

Sipha 2 & 6

24V AC/DC

24V AC/DC and 110/230V AC

Power Consumption

Sipha 1

Sipha 2 & 6

<2VA

<4VA

Specifications (continued)

Safety Inputs

Sipha 1

Sipha 2 & 6

1 N.C. & 1 N.O.

6 x (1 N.C. & 1 N.O.)

Maximum Input Resistance

Terminals 1 – 4

Terminals 2 – 3

200

Ω

150

Ω

Minimum Approach Speed

17mm/s (0.67in/s)

Safety Outputs

Sipha 1

Sipha 1

Sipha 6

1 N.O.

2 N.O.

2 N.O. + 1 N.O. Delayed (0.6 to 30sec)

Output Rating

B300, AC-15, 4A/250V AC

P300, DC-15, 2A/30V DC

Minimum Switched Current/

Voltage

10mA/10V

Maximum Recommended

Output Fuse

5A quick blow AC, 3A quick blow DC

Auxiliary Outputs (not for

safety use)

Sipha 1

Sipha 2 & 6

1 N.C. Photovoltaic MOSFET (on

resistance typically 36

Ω)

1 N.C.

Auxiliary Output Switching

Capability

Sipha 1

Sipha 2 & 6

100mA/230V AC, 100mA/24V DC

2A/230 V AC, 2A/24 V DC

Indication LEDs

Green LED = Power on

Green LED = Output closed

Impulse Withstand Voltage

2500V

Installation Group

C in accordance with VDE 0110

Pollution Degree

3

Operating Temperature

-10°C to +55°C (+14° to +131°F)

Humidity

90% RH

Torque Settings—

Terminal Screws

1N

Conductor Size

Case Material

Red Polycarbonate

Mounting

35mm DIN Rail

Weight

Sipha 1

Sipha 2

Sipha 6

140g (0.31lbs)

410g (0.90lbs)

675g (1.49lbs)

Electrical Life

220V AC/4A880VA

cos

ϕ=.35

220V AC/1.7A375VA/

cos

ϕ=.6

30V DC/2A60W

10V DC/0.01A/0.1W

100,000 operations

500,000 operations

1,000,000 operations

2,000,000 operations

Mechanical Life

2,000,000 operations

Vibration

1mm, 10 to 55Hz

Shock

30g, 11ms half-sine