Chapter 4 External Control; External Input/Output Connector And Signals; Connector Type And Signal Pinouts - Hioki SM7860-01 Instruction Manual

External Control
Connect the device's EXT I/O
connector to the signal output
or input device.
4.1 External Input/Output Connector and
Signals

4.1 External Input/Output Connector and Signals

This chapter describes how to use the EXT I/O connector on the rear of the
device to control the device.
To avoid electric shock or damage to the equipment, always observe the
following precautions when connecting to the EXT I/O connector.
• Always turn off the power to the device and to any devices to be con-
nected before making connections.
• During operation, a wire becoming dislocated and contacting another
conductive object can be serious hazard. Ensure that the cable is
securely attached to the EXT I/O connector.
• Ensure that devices and systems to be connected to the EXT I/O connec-
tor are properly isolated.
To avoid damage to the device, observe the following cautions:
• Do not apply voltage or current to the EXT I/O connector that exceeds their rat-
ings.
• When driving relays, be sure to install diodes to absorb counter-electromotive
force.
See: "Connector Type and Signal Pinouts" (p.34)
Chapter 4
Rear Panel
33