Rockwell Automation 825 Smart Motor Manager User Manual - Manual (Page 78)

3-45 Functions
Publication 825-UM001B-EN-P January 2001
Applications
• Large low-voltage motors
• Medium- and high-voltage motors
• Conveyor systems
• Mills
• Mixers
• Crushers
• Saws
• Cranes
• Hoists, etc.
Figure 3.26 Stalling During Starting
Table 3.X Stalling during Start Setting Parameters
Trip
Function
Factory setting Off
Tripping Delay
Factory setting
The trip time t
sp
depends on the trip time t
ov
chosen for the overcurrent as
follows: t
ov
< 400 ms, t
sp
= 600 ms.; t
ov
≥ 400 ms, t
sp
= t
ov
+ 400 ms.
Actuation
Message from zero speed switch to control input #1
Motor running
24V AC/DC at control input #1
Motor standstill 0V AC/DC at control input #1
Output Relay
Selection (relays)
Same relay as for function “High Overload and Jam”
(settable only there)
t v
I
1
2
I e
t
I e
I
1 Normal start without
hindrance by high
overload or stalling
2 Stalling during standing
t
v
Tripping delay