Copley Controls Xenus PLUS Manual page 7

Xenus
SAFE TORQUE OFF (STO)
DESCRIPTION
The 800-1782 provides the Safe Torque Off (STO) function as defined in IEC 61800-5-2. Three 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.
INSTALLATION
DANGER
STO BYPASS (MUTING)
In order for the PWM outputs of the 800-1782 to be activated, current must be flowing through all of the opto-couplers that are connected
to the STO-IN1 and STO-IN2 terminals of J6, and the drive must be in an ENABLED state. When the opto-couplers are OFF, the drive is in a
Safe Torque Off (STO) state and the PWM outputs cannot be activated by the control core to drive a motor. This diagram shows connections
that will energize all of the opto-couplers from an internal current-source. When this is done the STO feature is overridden 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
through all of the opto-
* STO bypass connections on the 800-1782 and
Xenus XEL models are different. If both drives are
installed in the same cabinet, the diode should be
wired as shown to prevent damage that could occur
if the STO bypass connectors are installed on the
wrong drive. The diode is not required for STO
bypass on the 800-1782 and can be replaced by a
wire between pins 7 and 9.
STO CONNECTOR J6
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
Tech Support: E-mail: sales@copleycontrols.com, Web:
PLUS
Refer to the Xenus Plus Dual-Axis STO User Manual
The information provided in the Xenus Plus Dual-Axis STO User Manual must be
considered for any application using the 800-1782 drive's STO feature.
Failure to heed this warning can cause equipment damage, injury, or death.
STO BYPASS CONNECTIONS
Bypass Plug Connections
Jumper pins:
2-4, 3-5, 6-8, 7-9 *
Current must flow
couplers before the
800-1782
can be enabled
2-Axis EtherCAT
800-1782
Xenus Plus Dual-Axis
J6
STO-1(+)
2
STO-1(-)
3
STO-2(+)
4
STO-2(-)
5
STO-1(+)
6
STO-1(-)
7
*
STO-PWR (6.5 mA)
8
STO-GND (Sgnd)
9
* XE2 and XEL-XPL STO bypass connections are different.
The diode shown should be used if XE2 and XEL-XPL drives are used on the same
Frame Ground
equipment. Otherwise, the diode may be replaced by a jumper.
1
XE2 STO bypass connectors are not compatible with XEL-XPL drives.
J6 SIGNALS
PIN SIGNAL
1 Frame Gnd
2 STO-IN1+
3 STO-IN1-
4 STO-IN2+
5 STO-IN2-
Tel: 781-828-8090
http://www.copleycontrols.com
800-1782
to be enabled.
V_in
EN
Voltage
+VI
Regulator
+VI
Upper IGBT Gate Drive
+VI
Lower IGBT Gate Drive
PIN SIGNAL
6 STO-IN1+
7 STO-IN1-
8 STO-Bypass
9 STO-Gnd
Fax: 781-828-6547
Page 7 of 32
RoHS
PWM Signals
Buffer
+HV
PWM
Outputs