Frame Ground
J5
4.99k
5.1V
+HV
High Side PWM
Low Side PWM
Motor
Ouputs
4.99k
4.99k
5.1V
STO-1
ENH
STO-2
ENL
DIAG-ON
36V
10
+V
4.99k
STO-LED(+)
STO-2(-)
STO-1(+)
Channel 1
Channel 2
Xenus Plus
STO
Muting
Connections
STO-1(-)
STO-2(+)
STO-LED(-)
2
3
1
4
5
6
7
+24V Output
From 24V input on J4-3
9
Signal ground
8
1
6
9
5
2-9
3-4
5-8
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
Tel: 781-828-8090
Fax: 781-828-6547
Tech Support: E-mail: [email protected], Web:
Page 7 of 28
Xenus
Plus
EtherCAT
RoHS
XEL
DESCRiPTion
The XEL has a safety feature that is designed to provide the Safe Torque Off (STO) function as defined in IEC 61800-5-2. Two opto-couplers are
provided which, when de-energized, prevent the upper and lower devices in the PWM outputs from being operated by the digital control core. This
provides a positive OFF capability that cannot be overridden by the control firmware, or associated hardware components. When the opto-couplers are
activated (current is flowing in the input diodes), the control core will be able to control the on/off state of the PWM outputs.
FUNCTIONAL DIAGRAM
In order for the PWM outputs of the XEL to be activated, current must be flowing through both opto-couplers that are connected to the STO-1 and
STO-2 terminals of J5, and the drive must be in an ENABLED state. The LED outputs on J5 connect an opto-coupler to an external LED and will conduct
current through the LED to light it whenever the PWM outputs can be activated, or the drive is in a diagnostic state. When the LED opto-coupler is oFF,
the drive is in a Safe Torque Off state and the PWM outputs cannot be activated to drive a motor.
STO MUTING
The diagram below shows connections that will energize both STO-1 and STO-2 opto-couplers.
When this is done the STo feature is “muted” and control of the output PWM stage is under control of the digital control core.
if not using the STo feature, these connections must be made in order for the Xenus to be enabled.
FUNCTIONAL DIAGRAM
Pin
SIGNAL
Pin
SIGNAL
1
Frame Gnd
6
STo-LED(+)
2
STo-1(+)
7
STo-LED(-)
3
STo-1(-)
8
24 Vdc Common
4
STo-2(+)
9
+24 Vdc Output
5
STo-2(-)
J5 SIGNALS
SAFE ToRQUE oFF (STo)
STO CONNECTOR MUTING CONNECTIONS
These connections
MUST be made to
enable the Xenus.
