Interface, 5 p5 - 24 vdc back-up power input, 6 p6 - braking resistor and dc bus – Lenze S94P01G Position Servo User Manual

Page 24

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S94P01G

22

Interface

P4B Pin Assignments (Resolver Feedback - E94R Drives)

Pin

Name

Function

RESOL

VER

1

5

P4

9

6

1

Ref +

Resolver reference connection

2

Ref -

3

N/C

No Connection

4

Cos+

Resolver Cosine connections

5

Cos-

6

Sin+

Resolver Sine connections

7

Sin-

8

PTC+

Motor PTC Temperature Sensor

9

PTC-

4.1.5 P5 - 24 VDC Back-up Power Input

P5 is a 2-pin quick-connect terminal block that can be used with an external 24 VDC
(500mA) power supply to provide “Keep Alive” capability: during a power loss, the logic
and communications will remain active. Applied voltage must be greater than 20VDC.

P5 Pin Assignments (Back-up Power)

Pin

Name

Function

+

-

+

-

24

1

+24 VDC

Positive 24 VDC Input

2

Return

24V power supply return

WARNING!
Hazard of unintended operation! The “Keep Alive” circuit will restart the
motor upon restoration of mains power when the enable input remains
asserted. If this action is not desired, then the enable input must be
removed prior to re-application of input power.

4.1.6 P6 - Braking Resistor and DC Bus

P6 is a 5-pin quick-connect terminal block that can be used with an external braking
resistor (the PositionServo has the regen circuitry built-in). The Brake Resistor connects
between the Positive DC Bus (either P6.1 or 2) and P6.3.

P6 Terminal Assignments (Brake Resistor and DC Bus)

Pin

Terminal

Function

B+

B-

BR

B-

B+

1

B+

Positive DC Bus / Brake Resistor

2

B+

3

BR

Brake Resistor

4

B-

Negative DC Bus

5

B-

DANGER!
Hazard of electrical shock! Circuit potentials are up to 680 VAC above
earth ground. Avoid direct contact with the printed circuit board or
with circuit elements to prevent the risk of serious injury or fatality.
Disconnect incoming power and wait 60 seconds before servicing the
drive. Capacitors retain charge after power is removed.

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