Unidrive M100 / M101 Control User Guide
13
Issue Number: 1
4 Electrical installation
4.1 24 Vdc supply
The 24 Vdc supply connected to the +24 V supply terminals on the AI-
Backup adaptor provides the following functions:
•
It can be used to clone or load parameters in order to pre-configure
drives when the line power supply is not available. The keypad can
be used to setup parameters if required. However, the drive will be in
the Under Voltage state unless the line power supply is enabled,
therefore diagnostics may not be possible. (Power down save
parameters are not saved when using the 24 V back-up power
supply input).
The working voltage range of the 24 V back-up power supply is as
follows:
Minimum and maximum voltage values include ripple and noise. Ripple
and noise values must not exceed 5 %.
Figure 4-1 Location of the 24 Vdc power supply connection on the
AI-Backup adaptor
4.2 Control connections
4.2.1 General
Table 4-1 The control connections consist of:
Key:
All analog terminal functions can be programmed in menu 7.
All digital terminal functions (including the relay) 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.
0V
0V (connected internally to 0V common - Control
terminal 1)
+ 24 V
+ 24 V Backup supply input
Nominal operating voltage
24.0 Vdc
Minimum continuous operating voltage
19.2 V
Maximum continuous operating voltage
30.0 V
Minimum start up voltage
12.0 V
Minimum power supply requirement at 24 V
20 W
Recommended fuse
1 A, 50 Vdc
Function
Qty
Control parameters available
Terminal
number
Single ended analog
input
1
Mode, offset, invert, scaling,
destination
2
Digital input
3
Destination, invert
11, 12, 13
Digital input / output
1
Input / output mode select,
destination / source, invert
10
PWM or frequency
output
1
Source, scaling, maximum
output frequency, mode
10
Relay
1
Source, invert
41, 42
Drive enable
1
11
+10 V User output
1
4
+24 V User output
1
9
0V common
1
1
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 0-10 V, current 4-20 mA etc.
Digital - indicates the mode of operation of the
terminal, (the Drive Enable terminal is fixed in
positive logic).
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.
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
WARNING
CAUTION
NOTE
Содержание Unidrive M100
Страница 100: ...0478 0352 01 ...
