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Quantum MP User Guide 47ï€
Issue: A4 www.emersonct.com
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 on page 144.
Table 4-25 Control connection recommended cable sizes
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 4-20 mA 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 - 24V
1.31mm
2
16 AWG
Encoder
Tachgenerator
2.5mm
2
12 AWG
Status relays
120V I/O control
Size 1
120V I/O control
Size 2
2.08mm
2
14 AWG
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