Amada UB25 - OPTO Selection; PLC Selection

CHAPTER 5: SETUP SOFTWARE
UB25 LINEAR DC RESISTANCE WELDING CONTROL
990-665 5-11
OPTO Selection
This selection accepts an opto coupler switch for eliminating switch debounce problems.
1 From the INPUT SWITCH SELECT
menu, press 2 to display the opto switch
select menu.
2 Press the 1 or 2 key to select how the
input opto switches will initiate the
Power Supply
. The display
automatically returns to the SETUP 1
menu.
• OPTO SWITCH NORMAL OPEN: Turn ON the open collector output transistor of the
opto isolator to initiate the Power Supply.
• OPTO SWITCH NORMAL CLOSED: Turn the open collector output transistor of the
opto isolator OFF to initiate the Power Supply.
NOTE: You will get an INPUT SWITCH ALARM unless you close the Firing Switch
and Foot Switch inputs before selecting the Normal Closed option.
PLC Selection
This option is used only if you are using an automated welding system. This selection accepts +24
VDC from a PLC as a source for activating the Firing Switch and Foot Switch inputs. For detailed
electrical interface information on these input switch selections, see Appendix B, Electrical and Data
Connectors.
1 From the INPUT SWITCH SELECT
menu, press the 3 key to display the PLC
select menu.
NOTE: PLC 0VDC TURN ON
initiates the Power Supply from a PLC
source by changing the PLC voltage
from +24 VDC to 0 VDC.
PLC +24VDC TURN ON initiates the Power Supply from a PLC source by changing the PLC
voltage from 0 to +24 VDC.
NOTE: You will get an INPUT SWITCH ALARM unless you have 0VDC on the Firing
Switch and Foot Switch inputs before selecting the +24 VDC Turn On option.
Press the 1 or 2 key to select how the PLC input switches will initiate the Power Supply. The
display automatically returns to the SETUP 1 menu.
INPUT SELECT SWITCH
1. OPTO COLLECTOR NORMAL OPEN
2. OPTO COLLECTOR NORMAL CLOSED
NUMBER Select, MENU Previous menu
INPUT SWITCH SELECT
1. PLC 0VDC TURN ON
2. PLC +24VDC TURN ON
NUMBER Select, MENU Previous Menu