Table 4-25 Control Connection Recommended Cable Sizes - Emerson Quantum MP User Manual

High performance dc drive size 1 and size 2 45a to 700a, 480v two or four quadrant operation

page of 175

/ 175
Contents
Table of Contents
Bookmarks

Table of Contents

Safety

Product

Mechanical

Information

Installation

Source

Indicates the parameter being output by the terminal

parameter:

Mode

Analog - indicates the mode of operation of the terminal,

parameter:

i.e. voltage 0-10V, current 4-20 mA etc.

Digital - indicates the mode of operation of the terminal,

i.e. positive / negative logic, open collector.

All analog terminal functions can be programmed in menu 7.

All digital terminal functions (including the relays) can be programmed in

menu 8.

The setting of Pr 6.04 can cause the function of digital inputs T25 to T27

to change. For more information, refer to section on page 144.

If the control circuits are to be connected to other circuits

classified as Safety Extra Low Voltage (SELV) (e.g. to a

personal computer), an additional isolating barrier must be

included in order to maintain the SELV classification.

WARNING

If any of the digital inputs (including the drive enable input)

are connected in parallel with an inductive load (i.e.

contactor or motor brake) then suitable suppression (i.e.

diode or varistor) should be used on the coil of the load. If no

CAUTION

suppression is used then over voltage spikes can cause

damage to the digital inputs on the drive.

The control circuits are isolated from the power circuits in the

drive by basic insulation (single insulation) only. The installer

must ensure that the external control circuits are insulated

from human contact by at least one layer of insulation

WARNING

(supplementary insulation) rated for use at the AC supply

voltage.

Status relay contacts are over-voltage category II.

WARNING

A fuse or other over-current protection should be installed to

the relay circuit.

WARNING