Edwards Signaling 200 User Manual

Series 200 Safety Switches

Installation Instructions

Mounting Configurations

Figure 1

Perpendicular

Actuation

OK OK

* Actuation surface

Parallel

Actuation

NO

Door

Actuation

Actuator

Rotated

Actuation

*

Actuator

OK

Installation

Mounting Instructions

1. Do not wire the switch until it is mounted and tested.
(See testing)

2. Select a mounting location where the switch and actuator can
be installed with their labels reading in the same direction.

3. Mount the switch on the stationary frame of the machine and
the actuator on the moveable guard, door or gate.

4. For best protection against operator defeat, mount with
non-removeable screws, bolts, or nuts. (See accessories)

5. The switch and actuator must be mounted so that the actuator
moves in one of the approved directions ( Figure 1).

6. Parallel actuation is NOT recommended and may cause switch
failure. An on/off/on (double actuation) signal may result when
the actuator passes by the switch rather than coming to rest in
proximity to it.

7. When mounting on a hinged gate or door, mount the switch
and actuator at least 6" away from the hinges so a more face
to face approach is achieved.

8. The actuator can be mounted at a 90° rotation.

9. Keep the switch and actuator within the listed sense range (see
specific switch electrical specifications).

10. Mounting on a ferrous (steel) material will reduce the sense
range a minimum of 50%. A 1/4" nonferrous (plastic or
aluminum) spacer installed under the actuator and switch will
restore most of the lost gap.

11. When mounting a metal switch to an ungrounded machine,
connect the ground lead to one of the switch mounting screws.

CAUTION — Particular care must be taken to determine the ac­tual load of the switch circuit.

1. Surges from coils, motors, contactors, solenoids and
tungsten filaments must be considered.

2. Transient protection, such as back-to-back zener diodes
(Transorb) or an RC network, is recommended for such loads
to ensure that maximum ratings of the switch are not
exceeded.

3. Line capacitance and load capacitance must be considered.
An in-line resistor can be added to limit the inrush current .

4. The resistor can only be added in series with the last red wire
just before the load.

5. The voltage drop and the power rating of the resistor must
be considered.

Voltage drop = I • R

200 SERIES

SAFETY

1-800-336-4206

www.edwardssignalling.com

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