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

5.8.

Enable/Disable Control via Rear Panel J1 Connector

J1-1 and J1-14 (Fig.4-4) serve as the Output Enable/Disable terminals by switch or relay.
This function is enabled or disabled by SW1-9. Refer to Table 5-2 for the Enable/Disable
function and SW1 settings.
SW1-9 setting
Down (Default)
Up
Table 5-2: Enable/Disable function and SW1 setting
To prevent possible damage to the unit, DO NOT connect any of the Enable/Disable inputs
If the Enable/Disable inputs are opened when the unit is in Safe-Start mode, it is required to
short the Enable/Disable inputs and then press the OUT button or send the "OUT 1"
If the Enable/Disable inputs are opened when the unit is in Auto-Restart mode, it is required
to short the Enable/Disable inputs and then the output will turn NOTE
5.9.

CV/CC Signal

The 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 and referenced to the COM potential at J1-12 (connected internally to the
negative local sense potential). When the power supply operates in Constant Voltage
mode, the CV/CC output is open. When the Power Supply operates in Constant-Current
mode, the CV/CC signal output is low (0-0.6V), with a maximum sink current of 10mA.
DO NOT connect the CV/CC signal to a voltage source higher than 30VDC.
Always connect the CV/CC signal to a voltage source with a series resistor to

5.10. PS_OK Signal

The PS_OK signal indicates a fault condition in 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
Table 5-1: SO Logic Selection
Enable/Disable Power supply
inputs output
Open or Short
Open
Short
CAUTION
to the positive or negative output potential.
command to resume operation.
back ON automatically.
limit the sink current to less than 10mA.
*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 (by front panel or remote command)
58
83532002 Rev C
Display
On Voltage/Current
Off "ENA"
On Voltage/Current
CAUTION
ALARM LED
Off
Blinking
Off