Current Display Accuracy; To Release Units From Slave Mode - TDK-Lambda GENESYS 750W User Manual

5.15.2.4
In the advanced parallel mode, the Master unit calculates the total current
by multiplying the Master output current by the number of Slave units. In
this method, the CURRENT display accuracy is 2% +/- 1 count. In cases
that higher accuracy is required, it is recommended to use the basic
parallel operation mode.
5.15.2.5
Slave units can be released using the following procedure:
a) After exiting from the Slave operation the unit's parameters will be set to:

Programmed Voltage to zero

Programmed Current to zero

UVL to zero volts

OVP to its maximum value
b) To unlock the front panel, depress Preview button until the display shows
"UFP"
To J1-10
SLAVE#2
POWER SUPPLY
With local sensing it is important to minimize the wire length and resistance. Also the
positive and negative wire resistance should be close as possible to each other to
achieve current balance between power supplies.
Make sure that the connection between –Vo terminals is reliable to avoid disconnection
during operation. Disconnection may cause damage to the power supply.

CURRENT Display Accuracy

To Release Units from Slave Mode

1. Depress the FINE button for 3 seconds. The Master/Slave
configuration will be displayed on the CURRENT display.
2. Select H1 mode using the CURRENT encoder.
3. Depress the FINE button again or wait 5 seconds.
4. Turn the AC power Off to store the new setting.
+LS
-S -LS
MASTER
POWER SUPPLY
J1-25
P
IPGM
J1-8 J1-12 J1-10
SLAVE#1
POWER SUPPLY
-S -LS +LS +S
Fig.5-4: Parallel connection with local sensing
NOTE
CAUTION
67
83507013 Rev G

AST OFF

OUT OFF

Foldback protection OFF

Locked Front Panel
+S
As short as possible
+
V
Twisted
-
pair
V
+
V
-
V
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