Logic Table For Sto Function; Description Of Sto Channel Delay - INVT Goodrive20-EU Series Operation Manual

Goodrive20-EU Series VFD
Control
circuit

3.3.1 Logic table for STO function

Input states and corresponding faults of STO function:
STO input state
H1, H2 opens simultaneously Trigger STO function, the drive can't operate normally
H1, H2 closes simultaneously Don't trigger STO function, the drive can operate normally
Either H1 or H2 opens or
closes

3.3.2 Description of STO channel delay

STO channel trigger and indication delay time:
STO mode
STO fault: STL1
STO fault: STL2
STO fault: STL3
STO fault: STO
+24V
H1
H2
COM
UDC+
PWM+
U/V/W
Drive
circuit
PWM-
UDC-
Figure 3-16 STO function schematic
Trigger STL1/STL2/STL3 fault, fault code:
38: Safety circuit of channel 1 is abnormal (STL1)
39: Safety circuit of channel 2 is abnormal (STL2)
40: Internal circuit is abnormal (STL3)
STO trigger delay
Trigger delay < 10ms
Indication delay < 280ms
Trigger delay < 10ms
Indication delay < 280ms
Trigger delay < 10ms
Indication delay < 280ms
Trigger delay < 10ms
Indication delay < 100ms
-24-
Switch, relay, etc.
Note: The contact of safety switch must be
opened/closed within 250ms; the cable between the
VFD and safety switch should be no longer than
25m.
Corresponding STO fault
1
and STO indication delay
Installation guidelines
2