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Digitax HD M753 Control User Guide
Issue Number: 3
4.3
Control connections
4.3.1
Digitax HD M75X
control connections
Table 4-3 The control connections consist of:
Key:
All analog terminal functions can be programmed in menu 7.
All digital terminal functions can be programmed in menu 8.
N
Any signal cables which are carried inside the motor cable (i.e. motor
thermistor, motor brake) will pick up large pulse currents via the cable
capacitance. The shield of these signal cables must be connected to
ground close to the point of exit of the motor cable, to avoid this noise
current spreading through the control system.
N
The Safe Torque Off drive enable terminal is a positive logic input only.
It is not affected by the setting of
Input Logic Polarity
(08.029).
N
The control circuits are isolated from the power circuits in the drive by
reinforced insulation.
Figure 4-2 Default control terminal functions
1
. Polarized signal connections.
* The Safe Torque Off / Drive enable terminal is a positive logic input only
Function
Qty
Control parameters
available
Terminal
number
Differential analog input
1
Offset, invert, scaling
9, 10
Digital input
2
Destination, invert,
logic select
11, 13
Digital output
2
Source, invert, logic
select
14, 16
Drive enable (Safe Torque Off)
2
2, 6
+24 V User output
1
Source, invert
12
0V common
7
1, 3, 4, 5, 7,
8, 15
Destination parameter:
Indicates the parameter which is being controlled
by the terminal / function
Source parameter:
Indicates the parameter being output by the
terminal
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.
WARNING
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 and outputs on the drive.
WARNING
CAUTION
NOTE
NOTE
NOTE
0 V common
1
2
3
4
5
6
7
Digital Output 1
Run forward
Run reverse
Safe Torque Off
Input 1*
0 V common
+24 V / Digital Output 3
11
12
13
Safe Torque Off
Input 2*
Digital Output 2
0 V common
0 V common
0 V common
0V common
9
10
8
14
15
16
0 V common
1
Содержание Digitax HD M753 EtherCAT
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