Magnetek Enrange CAN-6 Información técnica descargar pdf (Pagina 19)

Enrange MHR Instruction Manual

August 2014

Page 18 of 57

Figure 08: MHR driving Current Compensated or PWM load using Return Pin and internal

diodes

NOTE: This is a simplified schematic.

Figure 09: MHR PWM or Digital ON/OFF load using external ground and external diodes

NOTE: This is a simplified schematic.

PWM and digital outputs are not required to make use of the return pin. However, if the return pin

is utilized, use of an external diode is not needed for inductive loads.

NOTE: When the return pin is not utilized for PWM or digital outputs, a clamping diode must be

placed between the source and the output to provide protection against voltage transients. The

clamping diode should be placed as close to the load as possible. Magnetek recommends the

use of Magnetek P/N 14-105-0021E (clamping diode, 3A/1000V) in this situation, but depending

on the load, other clamping diodes might be used instead.

When configured as frequency or digital inputs, the IOs have 20K Ohm input impedance. The

return pin is not used in conjunction with an input.

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Magnetek Enrange CAN-6 Información técnica Pagina 19