Watson-Marlow MM440 - Manual (Page 225)

Issue 10/06 3 Functions
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0 225
Permissible min.
load characteristic
P2186
P2182
|Torque| [Nm]
|Frequency|
[Hz]
P2188
P2183
P2190
P2184
P2185+P2187+P2189
Rated load
characteristic
Fig. 3-90 Load torque characteristic with minimum permissible load
b) P2181 = 2 / 5
Load torque monitoring as anti-stall protection. This means that when a fault
occurs, the actual load torque is above the permissible tolerance bandwidth.
In this case, the load torque characteristic with maximum permissible load
should be determined.
Permissible max.
load characteristic
P2189
P2182
|Torque| [Nm]
|Frequency|
[Hz]
P2187
P2183
P2185
P2184
P2186+P2188+P2190
Rated load
characteristic
Fig. 3-91 Load torque characteristic with maximum permissible load
c) P2181 = 3 / 6
Load torque monitoring to detect whether the drive is blocked (stalled) or a
transmission belt has broken. This means that when a fault occurs, the load
torque is either above or below the permissible tolerance bandwidth. In this
case, the load torque characteristic with the minimum and maximum
permissible load should be determined.