QSHT 5700 Inverter Safe Torque-off Function
Hardwired Safe Torque-off
QuickStick HT User Manual 277
Rockwell Automation Publication MMI-UM007F-EN-P - September 2020
Safe Torque-off Feature Bypass
The QSHT 5700 inverters do not operate without a safety circuit or safety bypass wiring. For
applications that do not require the safe torque-off feature, jumper wires must be installed to
bypass the safe torque-off circuitry.
QSHT 5700 inverters ship with a 16-pin wiring plug for wiring to safety devices. To bypass
the safety function, wire these signals as shown in Figure 7-8. With the jumper wires installed,
the safe torque-off feature is not used.
Figure 7-8: Safe Torque-off Bypass Wiring
IMPORTANT If the safe torque-off function is not required for the QSHT
5700 inverter, the bypass jumper wires must be applied to the
safety (STO) connector plugs.
SB+/NC
S1A
SCA
S2A
SB-
S1B
SCB
S2B
1
2
12
3
4
5
6
7
8
9
10
11
13
14
15
16
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