TDK-Lambda GENESYS 10KW - Safe Start and Auto-Restart Modes; Over Temperature Protection (OTP); Series Operation

83
-
530
-
000 Rev.
G
37
5.11 SAFE START AND AUTO
-
RESTART MODES
When turning on the power supply, it can start to its last
setting of Output Voltage and Current limit with the output
enabled (Auto
-
restart) or start with the output disabled (Safe mode). Press and hold the OUT button to select b
e-
tween Safe start and Auto
-
restart modes. The VOLTAGE display will continuously cycl
e between “SAF” and “AUT”
every 3 seconds. Releasing OUT push
-
button while one of the modes is displayed, selects that mode. The default
setting at shipment is Safe mode.
5.11.1 Automatic start mode
In this mode, the power supply restores its last operatio
n setting. Upon start
-
up, the output is enabled
or disabled a
c
cording to its last setting.
5.11.2 Safe start mode
In this mode, the power supply restores its last operation setting and sets the Output to Off state. At
start
-
up, the ou
t
put is disabled and t
he output voltage and current are zero. To enable the output and
restore the last output voltage and current limit values, momentarily press OUT button.
5.12 OVER TEMPERATURE PROTECTON (OTP)
The OTP circuit shuts down the power supply before the internal c
omponents can exceed their safe
i
n
ternal operating temperature. When an OTP shutdown occurs, the display show “OTP” and the
ALARM LED blinks.
Resetting the OTP circuit can be automatic (non
-
latched) or manual (latched) depending on the Safe or
Automatic re
start mode.
1.
Safe start mode:
In Safe start mode, the power supply stays off after the over temperature cond
i-
tion has been removed. The display continues to show “OTP” and the ALARM LED co
n
tinues to
blink. To reset the OTP circuit, press OUT button (or sen
d OUT ON command via the serial port).
2.
Auto
-
restart mode:
In Auto
-
restart mode, the power supply recovers to its last setting automat
i-
cally when the over temperature condition is removed.
5.13 LAST SETTING MEMORY
The power supply is equipped with Last Sett
ing Memory, which stores power supply parameters at
each AC turn
-
off sequence.
STORED PARAMETERS:
1.
OUT On or Off
2.
Output voltage setting
3.
Output current limit
4.
OVP level
5.
UVL level
6.
FOLD setting
7.
Start
-
up mode (Safe or Auto
-
restart)
8.
Remote/Local (If the last set
ting was Local Lockout, the supply will return to Remote mode)
9.
Address setting
10.
Baud rate
11.
Locked/Unlocked Front Panel
(Items 8, 9, 10 are related to Remote digital control operation and explained in Chapter 7)
5.14 SERIES OPERATION
Power supplies of the SA
ME MODEL can be connected in series to obtain increased output voltage.
Split connection of the power supplies gives positive and negative output voltage.