Miyachi Unitek ISA Series, Руководство оператора

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APPENDIX B. ELECTRICAL AND DATA CONNECTIONS
ISA-4001CR INVERTER POWER SUPPLY
B-2 990-364
Section II. Input/Output Signal Configuration
Input/Output Signal Connections
NOTE:
Input/output signals can enter either the top or bottom of the Power Supply. If routed in from
the top, they can be made through the RS-485 connector plate. If routed in from the bottom, they can be
made through the current coil connector plate. We recommend removal of the cover plate to an area
away from the Power Supply before drilling holes for the I/O signals. This will reduce the need to
protect the electronics from metallic shards that otherwise could damage the unit or injure personnel.
CAUTION: If you remove the plate, be careful not to damage the attached connector.
1. Open the front door.
2. Remove the connector from the respective cover plate that you wish to use for I/O signal entry.
3. Remove the four screws that secure that cover plate to the Power Supply. Drill appropriate
hole in the plate to receive the I/O signal wires. Be sure all metal shards are removed and re-
insall the plate and connector.
NOTE: You can snap the I/O signal terminal blocks from their mounting bracket to facilitate
installation of I/O signal wires.
4. Connect the Inut/Output (I/O) signals
to the I/O signal terminal shown on the
right.
Make the appropriate connections, as
described on the following five pages
(
Input/Output Signal Configuration,
Input/Output Signals, and
Configurations for Common Input
Connections
).
I/O Signal Terminal Block
NOTE:
There are four signals that
must
be present, or their respective pins must have a
jumper:
x
Emergency Stop
( heck safety codes for Emergency Stop switch requirements.)
x
Flow Switch
(see Cooling Water Hose Connections )
x
Weld ON/OFF
Thermostat
In addition, one of the four external signal power and common input connections needs to be
made as shown in
Section II, Input/Output Signal Configuration .