Edwards 301-BT Series Installation Instructions

Caution When used without a Sentrol INT relay particular care must taken to determine the actual load of the switch circuit High voltage from coils motors contactors and solenoids must be Transient protection such as back to back zener diodes or an RC network is recommended for such loads to that maximum ratings of the switch are not exceeded Not for use with tungsten filament loads because of high inrush surges Line capacitance and load capacitance must be line capacitance can be caused by cable lengths over 50 ft using a maximum 48 VAC A resistor can be added in series to the inrush current at least 48 for 24 V applications resistor can be added in series just before the load voltage drop and the power rating of the resistor must be drop I R I R I maximum continuous current of the load install the switch Position the switch and actuator so the labels are reading in the Mount the switch on the stationary frame of the machine and the actuator on the moveable guard door or gate Keep the and actuator within the listed sense range See on page 4 for sense ranges See Figure 3 for mounting configurations Mounting on a ferrous material will affect the sense range a of 50 However a 1 4 in nonferrous spacer positioned the magnet and or switch should restore most of the lost range For best protection against operator defeat mount with screws bolts or nuts See ordering information for When mounting the switch on an ungrounded machine ground the housing by connecting your ground lead to one of the switch screws 1 Dimensions direction see Figure 2 Series 300 Interlock Switch 301 BT Sheet GuardSwitch Series 300 Safety Interlock Switch 301 BT is for use with safety monitored relays or monitored circuits To the optimum defeat resistant features of the switch both the circuit Circuit 1 and the tamper circuit Circuit 2 must be An optional third circuit can be provided to indicate at the which guard is open Environmental Pollution Degree II Correct use of this control device is an essential part of proper Failure to follow all instructions could lead to serious bodily injury cycle control death Maintenance to be done by qualified personnel only The connecting cables between the INT devices and the switches be located in an IP 23 type enclosure minimum The mounting for the switch and the actuator magnet must be per this specification Nonremovable hardware must be used for installation The housing of the switch must be connected to the PE primary ground circuit via a lock washer on the mounting screw The ground symbol must be placed adjacent to the screw verify switch operation with an ohmmeter range at 20 M switches with triac output set range at 20 k a normally open switch the meter will read a high impedance with actuator away It will read very high to infinity range triac switches read high k to infinity range with the actuator within sense range will see the opposite reading for a normally closed switch nonremovable screws bolts or nuts to mount the switch and Do not over torque mounting hardware See Figure 1 for 13924 REV F ISS 09SEP15 4 2 Switch actuator position 4 Circuits LED 1 or YLW or GRN 2 3 1 or YLW or GRN 3 optional LED LED 2 S3 shown with magnet actuator away from switch S5 open reed switch closed when is within 0.6 open reed switches will close if or tampered with a standard closed reed switch open when is between 0.3 and 0.6 white or yellow wires blue or green wires and brown wires circuit biased tamper circuit monitor circuit For white and blue colors see the optional color codes shown in 4 3 Mounting configurations 5 Wiring for category 3 For white and blue colors see the optional color codes shown in Figure 4 4 13924 REV F ISS 09SEP15 6 Wiring for category 4 For white and blue colors see the optional color codes shown in Figure 4 number proof screws and screwdriver x 3 4 in L Tampruf Roundhead Screw x 1 1 2 in L Tampruf Roundhead Screw Screwdriver 1 4 in Drive Bit for 6 and 8 screws specifications rating class time circuits cycles types O D folded stainless steel to 180 to 80 sealed contact switch encapsulated polyurethane 2 4 4X 5 12 12K 66 msec 5.4 VA 10 msec 150 VA two circuits do not switch simultaneously depend on the speed of the guard closure on closure speed of 1 ft per second and a of 1 8 in a delay less than 50 msec is under full load to 200,000,000 under dry circuit SJTOW K 0.34 in 0.86 cm PVC Jacketed J 0.19 in 0.48 cm PVC Jacketed J 0.21 in 0.53 cm specifications 1 number IMPORTANT Each electrical rating is an individual maximum and cannot be exceeded configuration type S1 S2 S3 S4 optional LED D1 S5 rating W VA W VA to 1.4 W W VA voltage VAC VDC VAC VDC VDC 3 V drop VAC VDC current A DC 0.7 AAC A mA ADC 0.3 AAC 13924 REV F ISS 09SEP15 4 information number 1 range configuration 2 1 NO 1 NC 1 NO 1 NC 1 NO 1 NC 1 NO 1 NC 1 NO 1 NC 1 NO 1 NC 1 NO 1 NC 1 NO 1 NC w LED 1 NO 1 NC w LED 2 NO 1 NC 2 NO 1 NC 2 NO 1 NC 2 NO 1 NC 2 NO 1 NC 2 NO 1 NC w LED 4 4 4 4 4 4 For all 301 models the cable exits from the left side 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 is required to determine actual sense range for specific applications The NH version does not have a minimum sense range in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm in 3.0 cm range 3 in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm in 1.5 cm range 3 in 0.8 cm in 0.8 cm in 0.8 cm in 0.8 cm in 0.8 cm in 0.8 cm in 0.8 cm in 0.8 cm in 0.8 cm length ft 1.8 m ft 1.8 m ft 3.6 m ft 3.6 m ft 4.6 m ft 6.1 m ft 7.5 m ft 1.8 m ft 3.6 m ft 1.8 m ft 3.6 m ft 6.1 m ft 3.6 m ft 7.5 m ft 3.6 m information number file number file number information contact information see www edwardsfiresafety com 2015 Walter Kidde Portable Equipment Inc