Drives
3.
Ref.1912
· 125 ·
DDS
HARDWARE
The following table shows the values for gap, tightening torque, sections
and other data of the plug-in connector for X2.
The description of the pins of this connector is:
SPEED ENABLE AND DRIVE ENABLE
Normal operating mode
1 Activate the Drive Enable and Speed Enable inputs (24 V DC) in the
desired order. Before activating, the Soft Start process ( smoothly
reaching the power bus voltage ) must be over. The motor will have torque
only when Drive Enable is active and there is voltage at the power bus.
The motor speed will be controlled with a command when the Speed
Enable function is active.
2 The motor will respond to all analog command variations only while
both inputs (Drive Enable and Speed Enable) are at 24 V DC. If any of
them is deactivated, the following will happen. See the operation modes
in figure F. H3/60.
Deactivation of the Drive Enable input
The Drive Enable input lets the current circulate through the motor stator
windings. When it is powered with 24 V DC the current is enabled and the
drive can work.
If the Drive Enable input drops to 0 V DC (no voltage), the power circuit is off
and the motor will have not torque, hence not being governed and will turn
freely until it stops by friction.
T. H3/7 Pins of aerial plug-in connector X2. Technical data.
AXD|SPD|MMC 1.XX 2.XX 3.XX
Connector data
Nr of poles 8 8 8
Gap (mm) 5 5 5
Min./max. tightening torque (N·m) 0.5/0.6 0.5/0.6 0.5/0.6
Screw thread M3 M3 M3
Min./max. section (mm²) 0.2/2.5 0.2/2.5 0.2/2.5
Rated current In (A) 12 12 12
Connection data
Length to strip (mm) 7 7 7
T. H3/8 Signals at the pins of connector X2 of the modular drive.
1
GND
Control signals
Reference 0 V for control signals
2
Drive Enable Drive current enable (24 V DC)
3
Speed Enable Drive speed enable (24 V DC)
4
Drive OK
Contact indicating module status
(it opens in case of failure). Limit 1 A at 24 V DC.
5
Drive OK
6 Chassis Chassis connection.
7 0 V DC (IN)
Supply input
for the control
circuit
Reference 0 V
8 +24 V DC (IN)
Positive voltage input
(2128 V DC)
INFORMATION. Activating the Drive Enable function requires to be
requested by the system in three different ways. They are: Electrical signal
at connector X2, variable BV7 (F00203), and variable DRENA of the PLC
when using the SERCOS-II or CAN interface. It could be deactivated through
any of them. Only via connector X2 is certified. See chapter 9. FUNCTIONAL
SAFETY.
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