Danfoss VLT Refrigeration Drive FC 103 Programming Manual page 71

Parameter Description
5-19 Terminal 37 Safe Stop
Use this parameter to configure the Safe Torque Off functionality.
A warning message makes the frequency converter coast the
motor and enables the automatic restart. An alarm message
makes the frequency converter coast the motor and requires a
manual restart (via a fieldbus, Digital I/O, or by pressing [RESET]
®
on the LCP). When the VLT PTC Thermistor Card MCB 112 is
mounted, configure the PTC options to get the full benefit from
the alarm handling.
Option: Function:
[1] Safe Stop Alarm Coasts the frequency converter when
Safe Torque Off is activated. Manual
reset from LCP, digital input, or
fieldbus.
[3] Safe Stop Coasts the frequency converter when
Warning Safe Torque Off is activated (terminal
37 off). When the Safe Torque Off
circuit is re-established, the frequency
converter continues without manual
reset.
[4] PTC 1 Alarm Coasts the frequency converter when
Safe Torque Off is activated. Manual
reset from LCP, digital input, or
fieldbus.
[5] PTC 1 Warning Coasts the frequency converter when
Safe Torque Off is activated (terminal
37 off). When the Safe Torque Off
circuit is re-established, the frequency
converter continues without manual
reset, unless a digital input set to [80]
PTC Card 1 is still enabled.
[6] PTC 1 & Relay A This option is used when the VLT
PTC Thermistor Card MCB 112 gates
with a stop key through a safety relay
to terminal 37. Coasts the frequency
converter when Safe Torque Off is
activated. Manual reset from LCP,
digital input, or fieldbus.
[7] PTC 1 & Relay
This option is used when the VLT
W
PTC Thermistor Card MCB 112 gates
with a stop key through a safety relay
to terminal 37. Coasts the frequency
converter when Safe Torque Off is
activated (terminal 37 off). When the
Safe Torque Off circuit is re-
established, the frequency converter
continues without manual reset,
unless a digital input set to [80] PTC
Card 1 is still enabled.
[8] PTC 1 & Relay This option makes it possible to use a
A/W combination of alarm and warning.
[9] PTC 1 & Relay This option makes it possible to use a
W/A combination of alarm and warning.
MG16H202
Programming Guide
NOTICE
Options [4] PTC 1 Alarm to [9] PTC 1 & Relay W/A are only
available when the MCB 112 is connected.
NOTICE
Selecting Auto Reset/Warning enables automatic restart
of the frequency converter.
Function
No Function
Safe Torque Off
Alarm
Safe Torque Off
Warning
PTC 1 Alarm
PTC 1 Warning
PTC 1 & Relay A
PTC 1 & Relay W
PTC 1 & Relay A/W
PTC 1 & Relay W/A
Table 3.11 Overview of Functions, Alarms, and Warnings
W means warning and A means alarm. For further information, see
Alarms and Warnings in the Troubleshooting section in the design
guide or the operating instructions.
®
A dangerous failure related to Safe Torque Off issues alarm
72, Dangerous Failure.
Refer to Table 5.3.
5-20 Terminal X46/1 Digital Input
This parameter is related to the digital input on VLT
®
Relay Card MCB 113. The parameter contains all options and
functions listed in parameter group 5-1* Digital Inputs except for
option [32] Pulse input.
5-21 Terminal X46/3 Digital Input
This parameter is related to the digital input on VLT
Relay Card MCB 113. The parameter contains all options and
functions listed in parameter group 5-1* Digital Inputs except for
option [32] Pulse input.
5-22 Terminal X46/5 Digital Input
This parameter is related to the digital input on VLT
Relay Card MCB 113. The parameter contains all options and
functions listed in parameter group 5-1* Digital Inputs except for
option [32] Pulse input.
Danfoss A/S © 05/2016 All rights reserved.
Num PTC Relay
ber
[0] – –
[1]* – Safe Torque Off
[A68]
[3] – Safe Torque Off
[W68]
[4] PTC 1 Safe Torque –
Off [A71]
[5] PTC 1 Safe Torque –
Off [W71]
[6] PTC 1 Safe Torque Safe Torque Off
Off [A71] [A68]
[7] PTC 1 Safe Torque Safe Torque Off
Off [W71] [W68]
[8] PTC 1 Safe Torque Safe Torque Off
Off [A71] [W68]
[9] PTC 1 Safe Torque Safe Torque Off
Off [W71] [A68]
®
®
®
3 3
Extended
Extended
Extended
69