Rockwell-automation T7480 ICS Regent+Plus Guarded Analog Output Module Manual de usuario descargar pdf (Pagina 23)

Guarded Analog Output Modules

(T7480)

7026

Mar

Connect the six termination resistors to the I/O extender

jumper posts as shown in Figure

. Use test clips as

required to make the connections.

Remove the four screws on one side of the module and

remove the printed circuit board from the module

clamshell hous

ing.

With the printed circuit board removed from the system,

check the forward voltage drop (in

circuit) on all 12 output

diodes with a digital multimeter in the diode test mode (2

mA current source). Verify that the forward voltage drop

is within the following tolerances:

0.6 to 0.8 volts for CR100, CR200, CR300, CR400, CR500,

and CR600.

0.2 to 0.45 volts for CR101, CR201, CR301, CR401. CR501

and CR601.

Check the resistance (in

circuit) of the 12 output diodes

reversely polarized with a digital mu

ltimeter set to 20

MOhm resistance range, by connecting the (+) lead of the

meter to the cathode and the (

) lead of the meter to the

anode of the diode. Verify that the resistance is within the

following tolerances:

> 20 MOhm for CR100, CR200, CR300, CR400, CR500,

and CR600.

> 1 MOhm for CR101, CR201, CR301, CR401. CR501 and

CR601.

If any of the tests in steps 6 or 7 fails, the board should be

returned to the factory for repair or replacement. If the

tests passed continue to step 9.

Install the printed circuit board into the I/O extender

module. Perform a voted reset (press two of the processor

module Reset buttons) and verify that the module is Active

(green Active LED is on and red Fault LED is off). Allow

the board to warm up for approximately one minute.

10.

Connect a 47K Ohm, 5% resistor between TP4 (AGND) and

the top lead of the first resistor (10K Ohm) on the SIP

resistor network RN101 (Figure

shows the exact

location of this resistor). Verify that the module signals a

1 2 ... 18 19 20 21 22 23 24 25 26

Comentarios a estos manuales

Sin comentarios

Rockwell-automation T7480 ICS Regent+Plus Guarded Analog Output Module Manual de usuario Pagina 23

Comentarios a estos manuales

Relacionado con productos y manuales para Equipo Rockwell-automation T7480 ICS Regent+Plus Guarded Analog Output Module