Danfoss VLT HVAC Drive FC 102 Instruction Manual - Page 12

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Danfoss VLT HVAC Drive FC 102 Instruction Manual
Commissioning
To perform a commissioning test:
•
follow the instructions in chapter 4.5.1 Restart
Prevention for STO Application for applications
without automatic restart after a safe stop, or
•
follow the instructions in chapter 4.5.2 Automatic
4
4
Restart of STO Application for applications with
automatic restart after a safe stop.
4.5.1 Restart Prevention for STO
Application
Application where 5-19 Terminal 37 Digital Input is set to
default value [1]* Safe Stop Alarm or combined STO and
MCB 112 where 5-19 Terminal 37 Digital Input is set to [6]
PTC 1 & Relay A or [9] PTC 1 & Relay W/A:
1.
Remove the 24 V DC voltage supply to terminal
37 using the interrupt device while the adjustable
frequency drive drives the motor (that is line
power supply is not interrupted).
2.
Check that:
3.
Reapply 24 V DC to terminal 37.
4.
Ensure that the motor remains in the coasted
state, and the mechanical brake (if connected)
remains activated.
5.
Send reset signal (via Bus, Digital I/O, or [Reset]
key).
6.
Ensure that the motor becomes operational
again.
The commissioning test is successfully completed when all
the above steps are passed.

4.5.2 Automatic Restart of STO Application

Application where 5-19 Terminal 37 Digital Input is set to [3]
Safe Stop Warning or combined Safe Torque Off and MCB
112 where 5-19 Terminal 37 Digital Input is set to [7] PTC 1
& Relay W or [8] PTC 1 & Relay A/W):
1.
Remove the 24 V DC voltage supply to terminal
37 by the interrupt device while the adjustable
10
2a
The motor coasts.
2b
The mechanical brake activates (if
connected).
2c
The alarm Safe Stop [A68] displays in the
local control panel (LCP), if mounted.
Danfoss A/S © 09/2014 All rights reserved.
Instruction Manual
2.
3.
4.
The commissioning test is successfully completed when all
the above steps are passed.
NOTICE!
See the warning on the restart behavior in
chapter 2.3 Safety Precautions.

4.6 System Configuration Security

•
•

4.7 Service and Maintenance

Conduct a functional test every 12 months to detect any
failure or malfunction of the STO functionality.
To conduct the functional test, perform the following
steps:
1.
2.
3.
4.
5.
6.
7.
frequency drive drives the motor (that is line
power supply is not interrupted).
Check that:
2a
The motor coasts.
2b
The mechanical brake activates (if
connected).
2c
The alarm Safe Stop [A68] displays in the
local control panel (LCP), if mounted.
Reapply 24 V DC to terminal 37.
Ensure that the motor becomes operational
again.
Security measures are the responsibility of the
user.
The adjustable frequency drive parameters can be
password-protected.
Remove the 24 V DC voltage supply at terminal
37.
Check if the LCP displays the alarm Safe Stop A68.
Verify that the adjustable frequency drive trips
the unit.
Verify that the motor is coasting and comes to a
complete stop.
Verify that the motor cannot be started.
Reconnect the 24 V DC voltage supply to
terminal 37.
Verify that the motor is not started automatically
and restarts only by giving a reset signal (via Bus,
Digital I/O, or [Reset] key).
MG37D222