Mentor MP Short Form Guide 59
Issue Number: 5 www.controltechniques.com
Safety Information Product information
Mechanical
installation
Electrical
installation
Getting started Running the motor
SMARTCARD
operation
Advanced
parameters
Diagnostics UL listing
4.9 Control connections
Refer to Figure 4-8 to understand the connection of the different control connections.
For the full terminal descriptions, refer to the Mentor MP User Guide.
If the control circuits are to be connected to other circuits classified as Safety Extra
Low Voltage (SELV) (e.g. to a personal computer), an additional isolating barrier must
be included in order to maintain the SELV classification.
If any of the digital inputs (including the drive enable input) are connected in parallel
with an inductive load (i.e. contactor or motor brake) then suitable suppression (i.e.
diode or varistor) should be used on the coil of the load. If no suppression is used then
over voltage spikes can cause damage to the digital inputs on the drive.
The control circuits are isolated from the power circuits in the drive by basic insulation
(single insulation) only. The installer must ensure that the external control circuits are
insulated from human contact by at least one layer of insulation (supplementary
insulation) rated for use at the AC supply voltage
Status relay contacts are over-voltage category II.
A fuse or other over-current protection should be installed to the relay circuit.
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