P&B MPR3E5 User Manual

14/1/98 Page 20 Issue H
Action Numerical
Value
Set
Y/N
Value
Enable Hot Restart 128 Y 128
32 64
16 32 Y 32
8 16
4 8 Y 8
2 4
1 2
0.5 1
168
7.4.7 Speed switch Matrix, Snnn
This setting, range 000 to 255, Enables/Disables the Speed Switch operation and selects the
reduction in t6x time for a stalled motor.
Example
To configure the relay such that the Speed Switch is enabled with the effect of decreasing the t6x
time by 75%, then the value set would be: 192
Action Numerical
Value
Set
Y/N
Value
50% 128 Y 128
25% 64 Y 64
Reserved 32
Reserved 16
Reserved 8
Reserved 4
Reserved 2
Reserved 1
192
If neither 50% or 25% are selected then Speed Switch is assumed to be disabled.
7.4.8 Advanced relay Matrix, Xnnn
Advanced Relay Matrix, Xnnn
This setting, range 003 to 140 sets the overload pick-up and also selects the fault inhibit feature.
Overload pick-up
This can be set at either 1.05 times FLC or 1.10 times FLC, depending on whether the most
significant bit is enabled or not. The cold and hot trip characteristics are the same irrespective of the
overload settings.

P&B MPR3E5 Specifications

General

Brand	P&B
Model	MPR3E5
Category	Relays
Language	English