Earth Bonding; Electrical Interfaces - Innovative Technology SMART Coin System User Manual

Smart Coin System User Manual

5.3 Earth Bonding

It is very important that the base plate is bonded to earth, as lack of proper bonding
can cause communication issues and failures with the SMART Coin System.
The earth bond should be made to any of the 6 holes in the bottom of the base plate
and be bonded to mains earth, typically through the Power Supply Unit.
Information
Earth resistance.

5.4 Electrical Interfaces

SMART Hopper
All the connectors needed to set up the SMART Coin System are easily accessible on
the bottom base: there are two connectors that are used to allow interfacing and
programming:
Information
Power always required
regardless of connection
type.
The first connector is a 4 pin socket used to power up the SMART Hopper.
Pin 3
Pin 2
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The resistance between the base plate and the Earth
pin on the mains plug should be less than 0.7 ohms.
Power is always required on pins 3 and 4 of the 4
way connector.
Pin 4
Pin 1
Page 20 of 28
Pin Description
1 +24V DC
2 0V / Ground Connection
3 N/C
4 N/C
GA02033