
Installation Instructions for Innotech Genesis Systems
Edition 011100
4-4
Check 24Vac and 24Vdc inputs as follows:
a.
Ensure power to the unit is turned off.
b.
For 24Vac units, ensure the AC Neutral is connected to Terminal 2 and the resistance
between Terminal 2 and the enclosure’s main earth link is 3.0 Ohms, or less.
c.
Disconnect the power lead from Terminal 1 (Figure 4-1).
d.
Connect a digital voltmeter red (+) test lead to the disconnected power lead and the
black (-) test lead to Terminal 2.
e.
Set the voltmeter to the proper range to measure 24 Volts.
f.
Turn on the power.
g.
The voltmeter should read 24 Volts 10%. For 24Vdc units, make sure the power lead
going to Terminal 1 is positive and Terminal 2 is negative.
h.
Turn off the power.
i.
Disconnect the digital voltmeter and reconnect the wire to Terminal 1.
j.
Repeat Steps a. through i. for the other 24-Volt units.
For units not included in this manual, refer to the appropriate data sheet in Appendix B.
Figure 4-1. Checking Power Input.
AC
V
DC
240Vac POWER
POINT
24Vac
TRANSFORMER
VOLT-OHM
METER
EARTH
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