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
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
) 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 ➊
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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60 min.
II
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