TOA Electronics DA-550F CE Benutzerhandbuch

15.3. About Pin 7 of the Control/Monitor Terminals

A ground common to all the control and monitor terminals is assigned to Pin 7.
Both Pins 7 of the Control/Monitor terminal for CH1 and CH2, and that for CH 3 and CH4 are internally
connected to each other.
Pins 7 are isolated from the unit body.

15.5. Connection Cable and Maximum Cable Length

For the connection cable, use a Shielded Category 5 twisted pair cable for LAN (CAT5-STP).
The maximum cable length is 600 m.

15.4. Terminal Pin Arrangement

• About operation and terminal status

• The same information is output from both Pins 8 (fan status output) of the CH1 and CH2 terminal, and the

CH3 and CH4 terminal.

• Lighting status of the protection indicator on the front panel matches operation of protection status provided

at the monitor terminal.

HI-LEVEL

LO-LEVEL

Control terminal (input)

9 – 14 V DC

0 – 3 V DC

Monitor terminal (output)

OFF

Protection indicator (front panel)

Light off

Light on

Protection status (output)

OFF

Terminal

Pin No.

Pin name

Unit operation status

HI-LEVEL

LO-LEVEL

CH1, 2

CH1 power ON/OFF control (input)

CH1 power OFF

CH1 power ON

CH1 protection status (output)

CH1 normal

CH1 protection activated (irregular)

CH1 power ON/OFF status (output)

CH1 power OFF

CH1 power ON

CH2 power ON/OFF control (input)

CH2 power OFF

CH2 power ON

CH2 protection status (output)

CH2 normal

CH2 protection activated (irregular)

CH2 power ON/OFF status (output)

CH2 power OFF

CH2 power ON

GND (input/output)

–

Fan operation status (output)

Fan stop (irregular)

Normal

CH3, 4

CH3 power ON/OFF control (input)

CH3 power OFF

CH3 power ON

CH3 protection status (output)

CH3 normal

CH3 protection activated (irregular)

CH3 power ON/OFF status (output)

CH3 power OFF

CH3 power ON

CH4 power ON/OFF control (input)

CH4 power OFF

CH4 power ON

CH4 protection status (output)

CH4 normal

CH4 protection activated (irregular)

CH4 power ON/OFF status (output)