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Revision:
User's Manual (MUT)
A3486 3Phase 400Vac to 2x2kW/1x4kW 48Vdc
08/10/2007
10
NPO:
Filename:
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Page:
00120/04:A3486.MUTx/10 A3486_REV10.DOC
35
19
INT. FAIL LED (red): lights up in case of internal power supply failures. After the Internal
Fail cause is removed, the LED remains on, unless a “Clear Alarm” is performed.
OVC LED (red): lights up as the channel is in overcurrent (Imon = Iset/Imax hardware).
After the Overcurrent cause is removed, the LED remains on, unless a “Clear Alarm” is
performed.
MAX DROP LED (red): lights up as the maximum allowed voltage drop is exceeded; i.e.:
when Sense Wires are used and the detected drop is larger than 6 V, the channel is
turned off automatically since it is not possible to recover it.
After the Maximum Drop cause is removed, the LED remains on, unless a “Clear Alarm”
is performed.
2.4.3.4 TRACKING
This section allows to track the channels and includes:
1 Slide switch (Parallel/Independent)
1 green LED
Channels can be tracked in order to obtain one 4 kW output: for this purpose it is
necessary to:
-
turn the module off
-
remove the screw-lock protection cap
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set the tracking switch on the “Parallel” position
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connect the output cables in parallel on the load
-
connect the sense wires (if used, see § 2.4.2.3); only one pair is required
-
install the screw-lock protection cap
-
turn the module on
When the channels are tracked, the channels settings (see § 4.1) act on both channels;
in particular: if one channel is disabled via Interlock, neither the other is active; Vset/Iset
must be programmed on Output Channel 0, their value is copied on Output Channel 1
automatically. The green LED lights up as the channels are tracked.
