CG Drives & Automation 01-7513-11r0
Faults and diagnostics
37
When the STO is activated by e.g. one or both STO-inputs going low, then this
event is detected by the AC drive control board (not part of functional safety,
used only for indication) of the Emotron AC drive. The display and keypad
(PPU) will then indicate this diagnostic state by showing “STO” blinking in
section D of the display (which is the bottom left corner). Upon detection the
AC drive control board will disable PWM modulation to gate driver as well,
although this function is not safety related itself.
Fig. 7
PPU area D
Table 9
Diagnostic LED indication
Diagnostic LED indicator
Comment
Two GREEN LEDs are lit
Normal operation with both STO-
inputs high. STO deactivated meaning
that motor can generate torque.
No LEDs are lit
STO active with one or both STO-
inputs low. IGBT driver made
powerless which means that motor
won’t be able to generate any torque.
One GREEN + one RED LED lit
Possible hardware fault on one
channel (red) whereas the second
(green) channel OK.
100
T
0 rpm
Torque
0% 0.0 Nm
Current
0 A
A
STO
Key/Key
A J K L
I
B
C
D E
F
H
G
Содержание Emotron OSTO 100
Страница 2: ......
Страница 4: ......
Страница 53: ...CG Drives Automation 01 7513 11r0 Appendix 53 ...
Страница 58: ......
Страница 107: ...CG Drives Automation 01 7513 11r0 Anhang 53 ...
Страница 111: ......
Страница 112: ...CG Drives Automation 01 7513 11r0 2021 05 10 CG Drives Automation Sweden AB www emotron com www cgglobal com ...