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50 Mentor MP User Guide
www.controltechniques.com Issue: 3
Table 4-24 Fan supply specification
Cabling should be 300V rated. Rated for at least 3A continuous in line
with local wiring regulations. Cabling should be protected 3A non time
delay fuses i.e. gG, Class CC or Class J and rated for at least 300V, in
accordance with local wiring regulations.
4.13 Control connections
Refer to Figure 4-20 to understand the connection of the different power
connections.
4.13.1 General
Table 4-25 The control connections consist of:
Key:
All analog terminal functions can be programmed in menu 7.
All digital terminal functions (including the relays) can be programmed in
menu 8.
The setting of Pr 6.04 can cause the function of digital inputs T25 to T27
to change. For more information, refer to section 11.22.5 Start / stop
logic modes on page 143.
Table 4-26 Control connection recommended cable sizes
Fan configuration Supply specification
230V 230V ±10%
115V 115V ±10%
Function Qty Control parameters available
Terminal
number
Differential analog input 1
Destination, offset, invert,
scaling
5,6
Single ended analog
input
2
Mode, offset, scaling, invert,
destination
7,8
Analog output 2 Source, mode, scaling, 9,10
Digital input 3 Destination, invert, logic select 27, 28, 29
Digital input / output 3
Input / output mode select,
destination / source, invert,
logic select
24, 25, 26
Relay 2 Source, invert
51, 52, 53
61, 62, 63
Drive enable 1 Logic select 31
+10V User output 1 4
+24V User output 1 22
0V common 6
1, 3, 11, 21,
23, 30
+24V External input 1 2
Destination
parameter:
Indicates the parameter which is being controlled by the
terminal / function
Source
parameter:
Indicates the parameter being output by the terminal
Mode
parameter:
Analog - indicates the mode of operation of the terminal,
i.e. voltage 0-10V, current 4-20mA etc.
Digital - indicates the mode of operation of the terminal,
i.e. positive / negative logic, open collector.
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.
Terminal Minimum cable size Maximum cable size
Machine armature
0.5mm
2
20 AWG
5mm
2
10 AWG
Auxiliary
Control I/O
1.31mm
2
16 AWG
Encoder
Tachogenerator
2.5mm
2
12 AWG
Status relays
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