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installation
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parameters
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Mentor MP User Guide                       53
Issue: 3                        www.controltechniques.com
24 Digital I/O 1
25 Digital I/O 2
26 Digital I/O 3
Terminal 24 default function AT SPEED output
Terminal 25 default function DRIVE RESET input
Terminal 26 default function RUN FORWARD input
Type
Positive or negative logic digital inputs, 
positive or negative logic push-pull outputs 
or open collector outputs
Input / output mode controlled by... Pr 8.31, Pr 8.32 and Pr 8.33
Operating as an input
Logic mode controlled by... Pr 8.29
Absolute maximum applied voltage 
range
+30V, -18V relative to 0V
Impedance
6k
Ω
Input thresholds 10.0V ±0.8V
Operating as an output
Open collector outputs selected Pr 8.30
Nominal maximum output current 200mA (total including terminal 22)
Maximum output current 240mA (total including terminal 22)
Common to all modes
Voltage range 0V to +24V
Sampling period
250
μs if configured with the destination as 
Pr 6.35 or Pr 6.36. 4ms for all other 
destinations
27 Digital input 4
28 Digital input 5
29 Digital input 6
Terminal 27 default function RUN REVERSE input
Terminal 28 default function LOCAL/REMOTE select
Terminal 29 default function JOG SELECT input
Type of input Negative or positive logic digital inputs
Logic mode controlled by... Pr 8.29
Voltage range 0V to +24V
Absolute maximum applied voltage 
range
+30V, -18V relative to 0V
Impedance
6k
Ω
Input thresholds 10.0V ±0.8V
Sampling period
250
μs if configured with the destination as 
Pr 6.35 or Pr 6.36. 4ms for all other 
destinations
30 0V common
Function
Common connection for all external 
devices
31 ENABLE
Function Drive enable
Type Positive or negative logic digital input
Absolute maximum applied voltage 
range
+30V, -18V relative to 0V
Input threshold 10.0V ±0.8V
Sampling period 4ms
Drive commissioning output
Function
Instantaneous armature current 
feedback
Type of output Unipolar single-ended voltage
Full scale voltage range 10V ±5%
Maximum offset 7mV
Protection
~25mA max. Short circuit protection to 
ground (0V).
Model
Full scale range of drive 
commisioning output
MP25A4(R) MP25A5(R)
2.29 x Drive rated current 
(Pr 11.32)
MP45A4(R) MP45A5(R)
2.30 x Drive rated current 
(Pr 11.32)
MP75A4(R) MP75A5(R)
2.42 x Drive rated current 
(Pr 11.32)
MP105A4(R) MP105A5(R)
2.29 x Drive rated current 
(Pr 11.32)
MP155A4(R) MP155A5(R)
2.30 x Drive rated current 
(Pr 11.32)
MP210A4(R) MP210A5(R)
2.41 x Drive rated current 
(Pr 11.32)
MP350A4(R) MP350A5(R) MP350A6(R)
2.73 x Drive rated current 
(Pr 11.32)
MP420A4(R)
2.27 x Drive rated current 
(Pr 11.32)
MP470A5(R) MP470A6(R)
3.34 x Drive rated current 
(Pr 11.32)
MP550A4(R)
2.85 x Drive rated current 
(Pr 11.32)
MP700A4(R) MP700A5(R) MP700A6(R)
2.24 x Drive rated current 
(Pr 11.32)
MP825A4(R) MP825A5(R) MP825A6(R)
2.46 x Drive rated current 
(Pr 11.32)
MP900A4(R)
2.25 x Drive rated current 
(Pr 11.32)
MP1200A4(R) MP1200A5(R) MP1200A6(R)
3.44 x Drive rated current 
(Pr 11.32)
MP1850A4(R) MP1850A5(R) MP1850A6(R)
2.23 x Drive rated current 
(Pr 11.32)
41 Tachogenerator positive input
42 Tachogenerator negative input
Function
Speed feedback inputs for 
tachogenerator feedback device
Maximum voltage  300V
Feedback scaling controlled by Pr 3.51 (Fb02, 0.72)
Sampling period 4ms
Status relay contacts are over-voltage category II.
A fuse or other over-current protection should be installed to 
the relay circuit.