Figure 3.21, Limiting the number of starts per hour, Table 3.r – Rockwell Automation 825 Smart Motor Manager User Manual User Manual

Page 66: Starts per hour setting parameters

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3-33 Functions

Publication 825-UM001B-EN-P January 2001

Limiting the Number of Starts per Hour (Start Lockout)

Function

When the set number of starts is reached and the motor is switched off, a new start is
prevented. Depending on its setting, either the main relay changes to “Fault”, or the selected
auxiliary is activated.
As soon as a new start is permissible, the start lockout is automatically reset.

Figure 3.21 Limiting the Number of Starts per Hour

,

First start

,,

Second start

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The selected relay (MR, or #1…#5) remains in the tripped position until 60 min. have expired. If an additional start is
allowed, the number of starts can be increased by one.

Table 3.R Starts per Hour Setting Parameters

➊ If auxiliary relays #2 and #3 are assigned to the communication (refer to page

5-16

) they cannot be selected

here.

Note: The thermal protection of the motor is independent of this function. Each start
depends on the thermal reserve of the motor.

Function

Factory setting

Off

Setting

Setting range

1…10 starts/hour

Factory setting

2 starts/hour

Setting increments

1

Output Relay

Selection (relays)

MR, AL, #1…#5

Factory setting

MR

ATTENTION

!

The motor manufacturer's instructions regarding the permissible
number of starts per hour and the minimum waiting time between
individual starts must be complied with.

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t

w

I

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60 min.

II

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