ElmoMC Power Supplies-TAM-20 - Manual (Page 26)

Tambourine 20 Power Supply Installation Guide
MAN-TAMIG (Ver. 1.501)
|Mounting and Wiring the Tambourine 20| www.elmomc.com
26
Table of Contents
3.4.6 Connecting the Main Power Cable
To connect the AC power cable:
1. For best noise immunity, a shielded (not twisted) cable is recommended (not mandatory) for
the AC input cable.
2. When operating with a three-phase power source, a 4-wire shielded cable should be used:
a. Connect the 3-phase leads of the main input cable to the AC1, AC2 and AC3 terminals of the
main input connector.
b. For safety requirements, the green/yellow-wire must be connected to the protective earth
(PE terminal). Connect the Protective Earth wire to the PE terminal on the main input
connector.
When operating with a single-phase power source, a 3-wire shielded cable should be used:
a. Connect the first phase lead of the main input cable to the AC1 terminal of the main input
connector.
For an output of 1 to 10 A:
The second lead can be connected into either terminal AC2 or AC3.
For an output of 10 A and higher:
The second lead must be connected into both terminal AC2 and AC3.
b. For safety requirements, the green/yellow-wire must be connected to the protective earth
(PE terminal). Connect the Protective Earth wire to the PE terminal on the main input
connector.
3. The gauge of the cable strands is determined by:
a. For three-phase source, the sum of the actual current consumption of the drives being fed
by the Tambourine 20.
b. For single-phase source, twice the sum of the actual current consumption of the drives
being fed by the Tambourine 20.
4. The Tambourine 20 has a dual-terminal input for each phase. Whenever the total output-
current from the Tambourine 20 exceeds 10 A – each input phase MUST be connected through
both twin-terminals.