Recora Neptune NF-2 Foot Switch - Manual (Page 6)

CALCULATION EXAMPLE
In this example the Switchmat being used with a machine whose worst case response
time has been measured as 0.485 seconds.
Using the formulae above,
T = t1 + t2 S = (1600 x 0.520) + 1200mm
= 35mS + 485mS = 832 + 1200MM = 2032mm
= 520mS = 0.520S
Sensor mats will be required from 2032mm right up to the edge of the machine baseplate
.
NOTE- Ramp edging is often used to secure a safety mat to the proper location and also
helps to minimize tripping hazards.
Other considerations for Recora Switchmats would be as follows:
1. Machine installations must be capable of stopping motion anywhere in the
stroke or cycle. Do not use the Switchmat (presence sensing device) on a
power press with a full revolution clutch.
2. Do not use a safety mat to initiate machine motion.
3. Do not use a Switchmat or controller in an environment that may degrade the
integrity of the device such as a caustic or corrosive environment.
4. Additional guarding may be necessary to protect personnel from machinery or
hazardous areas. Switchmats may be used to complement other guarding such
as light curtains and hard guards.
Electrical Requirements
All Recora Switchmats are designed for low voltage operation, Class II N.E.C. circuit
operation, 100-volt amperes at 24 Volts AC or DC. Switch is single pole, single throw,
normally open, momentary contact type designed to activate with 10-15 pounds foot
pressure.
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