NF DP060LM Instruction Manual page 205

-------- Notes ------------------------------------------------------------------------------------------------------------
 Even when the activation of the output relay is disabled, the relay is turned off if the protection
function is activated. While the error message appearing when the protection function is
activated displays "Press Enter Key," pressing the ENTER key clears the message and turns on
the output relay again although the output remains off.
 The output relay is in the off state during the wait time at power-on or after changing the
power unit energization setting even if the activation of the output relay is disabled.
-----------------------------------------------------------------------------------------------------------------------------
 Operation procedure
1. Press the MENU key to move to the root menu, then select [System]. The system setting
window opens.
2. In the [Relay Cntrl] item, select [2:Enable] or [1:Disable]. If you select [Enable], the activation
of the output relay is enabled. If you select [Disable], the output relay is fixed to the on state
and the operation to turn the output on/off is performed by the semiconductor device rapidly.
DP060LM/DP120LM/DP180LM
4.21 Turning the Output On or Off Rapidly
187