GE Security GuardSwitch Series 300 301-BT, GuardSwitch Series 300 303-BT Installation Guide

Page 1

Description

The 301-BT Series 300 DPST safety interlock switch is designed for use with safety monitored relays or monitored circuits. To achieve the optimum Series 300 defeat resistant feature of the 301-BT, both the switch circuit (Circuit 1) and the tamper circuit (Circuit 2) must be connected. An optional third circuit can be provided to indicate at the panel which guard is open.

Notes:

1. Environmental: Pollution Degree II

2. Correct use of this control device is an essential part of proper machine cycle control.

3. Failure to follow ALL instructions could lead to serious bodily injury or death.

4. Maintenance to be done by qualified personnel only

5. The connecting cables between the INT devices and the switches must be located in an IP 23 type enclosure (minimum).

6. The mounting for the switch and the actuator magnet must be accomplished per this specification.

7. Non-removable hardware must be used for installation.

8. The housing of the 300-BT must be connected to the PE (Primary Earth) ground circuit via a lock washer on the mounting screw. The PE ground symbol must be placed adjacent to the screw.

To verify switch operation with an ohmmeter:

Set range at 20 mega ohms (switches with triac output, set ohm range at 20 kilo ohms). For a normally open switch, the meter will read a high impedance with the actuator away. It will read very high to infinity range (triac switches will read high kilo ohm to infinity range) with the actuator within sense range. You will see the opposite reading for a normally closed switch.

Dimensions

0.98''

2.49cm

1.48''

3.76cm

0.57''

1.45cm

0.69''

1.75cm

0.40''

1.02cm

0.67''

1.70cm

0.16'' x 0.24''

0.41cm x 0.61cm slot

3.07''

7.80cm

1.75''

4.45cm

3.07''

7.80cm

2.13''

5.41cm

0.20''

0.51cm

0.74''

1.88cm

0.66''

1.68cm

GuardSwitch™ Series 300

Safety Interlock Switch

301-BT-06(J)(K)

301-BT

301-BT-06J-NH 301-BT-12(J)(K)

303-BT

301-BT-12J-NH 301-BT-15J-NH 301-BT-25J-NH 301-BT-20J 301-BLT-06(J)(K)

Installation

Use non-removable screws, bolts, or nuts to mount the switch and actuator. Do not over-torque mounting hardware.

1. Position the switch and actuator so the labels are reading in the same direction (See Figure 1.)

2. Mount the switch on the stationary frame of the machine and mount the actuator on the moveable guard, door or gate. Keep the switch and actuator within the listed sense range. (See Ordering Information.) See Figure 2 for recommended mounting configurations.

3. Mounting on a ferrous material will effect the sense range a minimum of 50%. However, a 1/4" non-ferrous spacer positioned under the magnet and/or switch should restore most of the lost sense range.

4. For best protection against operator defeat, mount with non-removable screws, bolts or nuts. See ordering information for details.

5. Caution! When not used with a Sentrol INT relay particular care must be taken to determine the actual load of the switch circuit. High voltage transients from coils, motors, contactors and solenoids must be considered. Transient protection, such as back-to-back zener diodes (TransZorb such loads to ensure that maximum ratings of the switch are not exceeded. Not recommended to be used with tungsten filament loads because of high current inrush surges. Line capacitance and load capacitance must be considered.

) or an RC network, is recommended for

301-BLT-12(J)(K) 301-B3T-06(J) 301-B3T-12(J) 301-B3T-20J 301-B3T-12J-NH 301-B3T-25J-NH 301-B3LT-12(J)(K)

continued

Page 2

Excessive line capacitance can be caused by cable lengths over 50' when using a maximum 48 VAC. A resistor can be added in series to limit the inrush current (at least 48 ohms for 24 Volt applications).

The resistor can be added in series just before the load. The voltage drop and the power rating of the resistor must be considered.

Voltage drop = I•R;

Watts = I

•R (I = maximum continuous current of the load).

6. When mounting the switch on an ungrounded machine, ground the switch housing by connecting your ground lead to one of the switch mounting screws.

Figure 1

CIR.1

CIR.2

CIR.3

BLK

WHT

BLUE

RED

BRN

ORG

Circuits*

without LED

S2 S3

Circuits*

with optional LED

BLK

CIR.

WHT

CIR.

BLUE

RED

BRN

ORG

Optional LED

S2 S3

Actuator

Switch

sensing face

S1,S5 Normally open reed switch, closed when actuator is within 0.6" S2, S3 Normally open reed switches, will close if misaligned or tampered with a

standard magnet

S4 Biased closed reed switch, open when actuator is between 0.3" and 0.6"

*Circuits shown with magnet actuator away from switch.

Mounting Configurations

Figure 2

Perpendicular

Actuation

Best Best

Door

Actuation

Pivot Actuation

Good

Parallel Actuation

Not Recommended

N.O. circuit: Black and white wires. N.C. biased tamper circuit: Red and blue wires. N.O. monitor circuit: Orange and brown wires.

The parallel actuation can result in on/off/on signal if the actuator passes by the switch rather than coming to rest in proximity to it. This is NOT a recommended configuration for safety interlock applications.

Wiring Diagram for Category 3

Inputs shown with safety gates/guards in closed position. One Series 300-BT GuardSwitch™ required for each safety gate.

(–)

INT-03-230: 230V AC INT-03-120: 120V AC INT-03-024: 24V DC

(+)

Required Fast or Slow-Acting Fuse: (250V, 5x20 mm F) INT-03-230: 40mA INT-03-120: 80mA INT-03-024: 1/4A

RESET

L1 L2 1 2 X1 X2 Y1 Y2

–

N.O. N.C.

Series Circuit

W H T

Parallel Circuit

B L U

Required Fast or SlowActing Fuses: 4A (250V, 5x20 mm F

GE Security Industrial

230 VAC

60 VDC

Safety Monitor Relay INT-03

SAFE AUX.

BCD

LOADS

OUTPUTS

EFG

GuardSwitchTM Series 300

*300-BLT-

*Or other DPST GuardSwitch

(See the 300-BT Series installation instructions)

Note – The LED on the BLT model will be ON when the guard is open

Fuses: 1 A (250 v)

Multiple DPST GuardSwitches – Shown with actuators in position, all guards closed.

120 VAC

30 VDC

The L.E.D of the BLT model will be on when the guard is open. If multiple guards

are open, L.E.D will be dimmer. The maximum number of GuardSwitches that can

be used is 50, although troubleshooting and line resistance must be considered.

(Do not exceed 30 Ohms of combined contact and line resistance. Each GuardSwitch

will have less than 0.5 Ohms of resistance.)

*300-BLT-

Page 3

CE Compliance Information

These switches are TUV certified for CE applications only when used with the INT Safety Monitor Relays. See Risk Category 3 and Category 4 wiring diagrams above.

European Directives

Machinery Directive (89/392/EEC) EMC Directive (89/336/EEC) Low Voltage Directive (73/23/EEC)

Specific European Standards

EN60204-1 Safety of electrical equipment of industrial machines EN292 Part 1, 2 Safety of Machinery, basic

Declaration of Conformity

available upon request.

terminology, technical principles EN954-1 Risk Assessment Category 3 or 4 depending on wiring method, see diagrams EN55081-2 Electromagnetic Emissions EN50082-2 Electromagnetic Immunity EN1088 Interlocking Devices EN947-5-3 Control Circuit Devices EN50178 Safety of Electrical Equipment IEC 664-1 Insulation requirements IEC 68, part 2-1, 2-2, 2-3, 2-8, 2-14, 2-27, 2-30

General Specifications

Enclosure 304 Folded Stainless steel

Temperature Range -40°F to 180°F (-40°C to 80°C)

Environmental Hermetically Sealed Contact Switch

Encapsulated in Polyurethane

NEMA Rating 1, 2, 4, 4X, 5, 12, 12K

Protection Class IP 66

Response Time 1 msec (5.4VA); 10 msec (150VA)

Individual circuits The two circuits do not switch

simultaneously, and depend on

the speed of the guard closure.

Based on closure speed of 1' per

second and a gap of 1/8", a delay

less than 50 msec is typical.

Life Cycles 100,000 Under Full Load;

Up to 200,000,000 Under Dry Circuit

Lead Types/O.D. 18/4 SJTOW (K)/0.34" (0.86cm)

22/4 PVC Jacketed (J)/0.19" (0.48cm)

22/6 PVC Jacketed (J)/0.21" (0.53cm)

UL/CSA All Models

File E 122942

LR89176

Wiring Diagram for Category 4

Inputs shown with safety gate/guard in closed position. Two Series 300-BT GuardSwitches™ with one INT relay are required for each safety gate.

When first applying the INT Safety Monitor Relay, the inputs must be cycled to check for proper operation before the output contacts close. To cycle the inputs, the guard must be opened and then closed. This start-up test is sufficient; however, we recommend that the proper operation of the switches and relay be checked at least every 24 hours.

(–)

INT-03-230: 230V AC INT-03-120: 120V AC INT-03-024: 24V DC

(+)

Required Fast or Slow-Acting Fuse: (250V, 5x20 mm F) INT-03-230: 40mA INT-03-120: 80mA INT-03-024: 1/4A

Required Fast or Slow-Acting Fuses: 4A (250V, 5x20 mm F

230 VAC

60 VDC

LOADS

RESET

L1 L2 1 2 X1 X2 Y1 Y2

–

Safety Monitor Relay INT-03

SAFE AUX.

BCD EFG

N.O. N.C.

OUTPUTS

W H T

*Or other DPST GuardSwitch

(See the 300-BT Series

installation instructions)

120 VAC

30 VDC

*300-BLT-

Note – The LED on the BLT model

will be ON when the guard is open

Fuses: 1A (250V)

W H T

B L K

*300-BLT-

GE Security Industrial

GuardSwitchTM Series 300

Page 4

Electrical Specifications applies to all models

CIRCUIT NUMBER CIRCUIT CONTACT LOAD SWITCHING SWITCHING

TYPE CONFIGURATION RATING VOLTAGE CURRENT

1 Switch: S1 N.O. 40W/VA 48VAC/VDC 1.0ADC, 0.7AAC

2 Tamper: S2, S3, S4 N.C. 10W/VA 48VAC/VDC 0.3A

2 w/optional LED: D1 N.C. 0.1–1.4W 48VDC(3V drop) 30mA

3 Monitor: S5 N.O. 10W/VA 48VAC/VDC 0.3ADC, 0.3AAC

Ordering Information

PART NUMBER

301-BT-06(J)(K) DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 6' (1.8m)

301-BT-06J-NH

301-BT-12(J)(K) DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

301-BT-12J-NH

301-BT-15J-NH

301-BT-20J DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 20' (6.1m)

301-BT-25J-NH

301-BLT-06(J)(K) DPST: 1 N.O., 1 N.C. w/LED 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 6' (1.8m)

301-BLT-12(J)(K) DPST: 1 N.O., 1 N.C. w/ LED 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

301-B3T-06J TPST: 2 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 6' (1.8m)

301-B3T-12J TPST: 2 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

301-B3T-20J TPST: 2 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 20' (6.1m)

301-B3T-12J-NH

301-B3T-25J-NH

301-B3LT-12(J)(K) TPST: 2 N.O., 1 N.C. w/ LED 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

CONTACT

SENSE RANGE

BREAK LEAD LENGTH

CONFIGURATION MINIMUM MAXIMUM RANGE NOMINAL

DPST: 1 N.O., 1 N.C. 0.6"(1.5cm) 1.2"(3.0cm) 6' (1.8m)

DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 15' (4.6m)

DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 25' (7.5m)

TPST: 2 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

TPST: 2 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 25' (7.5m)

Accessories

PART NUMBER TAMPER PROOF SCREWS & SCREWDRIVER

1953 #6 x 3/4"L Tampruf Roundhead Screw

1954 #8 x 1-1/2"L Tampruf Roundhead Screw

1955 Tampruf Screwdriver

1956 Tampruf 1/4" Drive Bit for #6 and #8 screws

Warning— Each electrical rating is an individual maximum and cannot be exceeded!

The part numbers 301 and 303 are the same in all respects except the cable exits, 301 left and 303 right. Not all models are available in 303.

Configuration with actuator away from the switch

Proximity of ferrous materials usually reduces sense range — typically by 50%. The shape and type of material cause a wide diversity of effects. Testing is required to determine actual sense range for specific applications.

The NH version does not have a minimum sense range.

GE Security

Industrial

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