VLT® PTC Thermistor Card MCB 112
Operating Guide
4.4.9 Functions, Alarms, and Warnings
Table 2: Overview of Functions, Alarms, and Warnings
Function
Number
No function
[0]
Safe stop alarm
[1]*
Safe stop warn-
[3]
ing
PTC 1 alarm
[4]
PTC 1 Warning
[5]
PTC 1 & Relay A
[6]
PTC 1 & Relay W
[7]
PTC 1 & Relay
[8]
PTC 1 & Relay
[9]
W/A
A dangerous failure related to Safe Torque Off issues alarm 72, Dangerous failure, see
A = alarm, W = warning. For further information, see the section Alarms and Warnings in the drive-specific operating guide or design guide.
1
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PTC
Relay
–
–
–
Safe stop [A68]
(1)
–
Safe stop
[W68]W = warn-
ing
PTC 1 safe stop
–
[A71]
PTC 1 safe stop
–
[W1]
PTC 1 safe stop
Safe stop [A68]
[A71]
PTC 1 safe stop
Safe stop [W68]
[W71]
PTC 1 safe stop
Safe stop [W68]
[A71]
PTC 1 safe stop
Safe stop [A68]
[W71]
Description
No function.
Coasts the drive when Safe Torque Off is activated. Manual
reset from LCP, digital input, or fieldbus.
Coasts the drive when Safe Torque Off is activated (terminal
37 off). When Safe Torque Off circuit is re-established, the
drive continues without manual reset.
Coasts the drive when Safe Torque Off is activated. Manual
reset from LCP, digital input, or fieldbus.
Coasts the drive when Safe Torque Off is activated (terminal
37 off). When Safe Torque Off circuit is re-established, the
drive continues without manual reset, unless a digital input
set to [80] PTC Card 1 is still enabled.
This option is used when the PTC option gates with a stop
button through a safety relay to terminal 37. Coasts the drive
when Safe Torque Off is activated. Manual reset from LCP,
digital input, or fieldbus.
This option is used when the PTC option gates with a stop
button through a safety relay to terminal 37. Coasts the drive
when Safe Torque Off is activated (terminal 37 off). When
Safe Torque Off circuit is re-established, the drive continues
without manual reset, unless a digital input set to [80] PTC
Card 1 is still enabled.
This option makes it possible to use a combination of alarm
and warning.
This option makes it possible to use a combination of alarm
and warning.
6.2.2 Alarm/Warning Code
AQ267038105120en-000101 / 130R0104 | 23
Commissioning
List.
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Questions and answers
Is PTC Thermistor card required in PESO certification also?