Enable/Disable Control Via Rear Panel J1 Connector; Cv/Cc Signal; Ps_Ok Signal - TDK-Lambda GENESYS 750W User Manual

5.8

Enable/Disable Control via Rear Panel J1 Connector

Contacts 1 and 14 of J1 (Fig.4-2, item 5) serve as Output Enable/Disable terminals by
switch or relay. This function is Enabled or Disabled by the SW1 Setup switch position 9.
Refer to Table 5-3 for Enable/Disable function and SW1 setting.
SW1-9 setting
Down (Default)
Up
To prevent possible damage to the unit, do not connect any of the
Enable/Disable inputs to the positive or negative output potential.
Safe Start mode-If the Enable/Disable fault condition clears when units in safe start mode
recovery is by pressing OUT button or by sending an 'OUT 1' serial command. Auto Restart
mode-The output will return back ON automatically when the Enable/Disable fault
conditions clears.

5.9 CV/CC Signal

CV/CC signal indicates the operating mode of the power supply, Constant Voltage or
Constant Current. The CV/CC signal is an open collector output with a 30V parallel zener, at
J1-13, referenced to the COM potential at J1-12 (connected internally to the negative sense
potential). When the power supply operates in Constant Voltage mode, CV/CC output is
open. When the power supply operates in Constant Current mode, the CV/CC signal output
is low (0-0.6), with maximum 10mA sink current.
Do not connect the CV/CC signal to a voltage source higher than 30VDC.
Always connect the CV/CC signal to voltage source with a series resistor to
limit the sink current to less than 10mA.

5.10 PS_OK Signal

The PS_OK signal indicates the fault condition of the power supply. PS_OK is a TTL signal
output at J1-16, referenced to IF_COM at J1-2, 3 (Isolated Interface Common). When a fault
condition occurs, the PS_OK level is low, with a maximum sink current of 1mA; when no
fault condition occurs, the PS_OK level is high with a maximum source current of 2mA. The
following faults will set the PS_OK to a Fault state:
*OTP
*OVP
*Foldback
*AC fail
Enable/Disable
Inputs
Open or Short
Open
Short
Table 5-3: Enable/Disable function and SW1 setting
*Enable/Disable open (Power supply is disabled)
*SO (Rear panel Shut-Off, Power Supply is shut off)
*IEEE failure (With optional IEEE interface)
*Output Off
83507013 Rev G
Power supply
output
On
Off
On
CAUTION
NOTE
CAUTION
60
Display ALARM LED
Voltage/Current Off
"ENA"
Blinking
Voltage/Current Off