APPENDIX B. ELECTRICAL AND DATA CONNECTIONS
IS-300CA INVERTER POWER SUPPLY
990-418 B-13
Pin No. Name
EtherNet/IP
TM
model
Description
14
WE2 STOP/
WELD COUNT
YES
WE2 stop input or Weld count input pin.
Switch between functions via the mode select settings (refer to Chapter
3, Section 10, Mode Select Screen).
When WE2 STOP is selected
Closing this pin during the WELD2 sequence will switch the sequence
to COOL2.
Closing this pin in the sequence other than WELD2 is neglected. The
sequence will switch to COOL2 if this signal is closed during the
WELD2 sequence operation.
When this pin is closed before WELD2 welding start after startup, the
current is supplied for at least a control cycle and WELD2 is stopped
to switch the sequence to COOL2.
When WELD COUNT is selected
This pin allows you to determine whether or not the number of
deposited welds has reached the WELD COUNT setting.
20ms or more is required for receiving the WELD COUNT input
signal.
15
COM COM pin. This pin is internally connected to the GND chassis.
16
1ST YES
1ST STAGE input pin. Closing this pin will close SOL1 of pin 36 or
SOL2 of pin 37. Since the welding sequence does not start, you can
adjust or check the force position.
When the 2ND STAGE pin is closed after this, a welding can be done
at the most appropriate force position.
Maintaining the 1ST STAGE input pin ends even if it is closed, and the
selected SOL signal, SOL1 or SOL2, is turned OFF.
The start signal stabilizing time can be changed in the range of 1 to
20ms. (Also applied to the 2nd signal.)
17
2ND YES
2ND STAGE input pin. Closing this pin will start the sequence.
The start signal stabilizing time can be changed in the range of 1 to
20ms. (Also applied to the 1st signal.)
18
COM COM pin. This pin is internally connected to the GND chassis.
19
WELD ON/OFF YES
Weld ON pin. Close this pin to turn ON the WELD ON/OFF signal,
and open it to turn it OFF.
Leaving this pin open will shut off welding current even when the
sequence operation is performed. Use this pin, for example, to start the
sequence experimentally.
20ms or more is required for receiving the input signal.
20
THERMOSTAT
Thermostat input pin. Connect to the transformer thermostat or diode
thermostat. Opening the pin will result in a thermostat error.
20ms or more is required for receiving the input signal.
21
FLOWSWITCH YES
Flow switch input pin. Opening this pin will result in a flow rate
error. 20ms or more is required for receiving the input signal.
22
COM COM pin. This pin is internally connected to the GND chassis.
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