MEI CASHFLOW 9520, Design Manual

Page: 5 / 48

CashFlow

9520 / 9524 / 9528 Design Guide

MEI., 2003 Page
5
Rev: G1
SAFETY
Warning
Before cleaning, servicing, removing or replacing CashFlow
®
units ALWAYS SWITCH OFF
or ISOLATE the ELECTRICITY SUPPLY to the host machine.
Caution
This guide is recommended for use by personnel trained to carry out electrical installation.
Maximum Operating Voltage
Do not apply more than the voltage specified on the unit, and within the following:
Full Operating Voltage range: +10V to +15V DC (+12V nominal)
Supply Voltage Ripple: Within Vmin to Vmax up to 100Hz,
<250mV pk - pk for Frequency>100Hz
Current consumption:
•
Quiescent current: 100mA Max
•
Max current: 3A Max
(4 solenoids active, Cashflow
®
9524)
Dangerous Environments
Do not operate the unit in the presence of flammable gasses or fumes, or after the entry of
fluid into the machine.
Disposal of Product
Always dispose of defective units according to local regulations.
Conformance to International Standards
When installed and operated according to the instructions provided for the particular unit,
CashFlow
®
products meet the applicable international and national safety standards for any
country in which they are used.
SAFETY
All electrical connections to the product must be rated according to the requirements for
“Accessible SELV” circuits as defined in EN60335-1. The product is therefore suitable for
use in a class 2 (non-earthed or non-grounded) appliance.
Overcurrent protection is not included in the product and should be provided as part of the
host machine. The recommended fuse value at the rated supply of 12V is:
3A Slow blow (to EN60127)
Other protection methods may be used providing their overcurrent characteristics remain
within the overall operating characteristics of the above fuse.
Warning: This is a class A product. In a domestic environment this product may
cause radio interference, in which case the user may be required to take adequate
measures.