Safe Stop Commissioning Test; Additional Connections - Danfoss VLT AQUA Drive Design Manual

5. How to Install

5.4.2. Safe Stop Commissioning Test

After installation and before first operation, perform a commissioning test of an installation or
application making use of the FC 200 Safe Stop.
Moreover, perform the test after each modification of the installation or application, which the FC
200 Safe Stop is part of.
The commissioning test:
1.
2.
5
3.
4.
5.

5.5. Additional Connections

5.5.1. DC bus connection
The DC bus terminal is used for DC back-up, with the intermediate circuit being supplied from an
external source.
Terminal numbers: 88, 89
Please contact Danfoss if you require further information.
5.5.2. Brake Connection Option
The connection cable to the brake resistor
must be shielded/armored.
1.
2.
100
Remove the 24 V DC voltage supply to terminal 37 using the interrupt device while the
motor is being run by the FC 202 (i.e., line supply is not interrupted). The test step is
passed if the motor reacts with a coast and the mechanical brake (if connected) is acti-
vated.
Then send reset signal (via Bus, Digital I/O, or [Reset] key). The test step is passed if
the motor remains in the safe stop state, and the mechanical brake (if connected) re-
mains activated.
Then reapply 24 V DC to terminal 37. The test step is passed if the motor remains in the
coasted state, and the mechanical brake (if connected) remains activated.
Then send reset signal (via Bus, Digital I/O, or [Reset] key). The test step is passed if
the motor becomes operational again.
The commissioning test is passed if all four test steps are passed.
NOTE
Dynamic brake calls for extra equipment and safety considerations. For further in-
formation, please contact Danfoss.
Use cable clamps to connect the shield to the metal cabinet of the adjustable frequency
drive and to the decoupling plate of the brake resistor.
Dimension the cross-section of the brake cable to match the brake current.
MG.20.N2.22 - VLT
No 81 82 Brake resistor
.
R- R terminals
+
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VLT ® AQUA Drive Design Guide