Danfoss FC 300 Design Manual page 57

FC 300 Design Guide
3.12.3 Safe Stop Commissioning Test
After installation and before first operation, perform a commissioning test of an installation or application making use of AutomationDrive FC 300 Safe
Stop.
Moreover, perform the test after each modification of the installation or application, which the AutomationDrive FC 300 Safe Stop is part of.
NB!
A passed commissioning test is mandatory for fulfilment of Safety Category 3 by such an installation or application.
The commissioning test (select one of cases 1 or 2 as applicable):
Case 1: restart prevention for Safe Stop is required (i.e. Safe Stop only where par. 5-19
[1], or combined Safe Stop and MCB112 where par. 5-19
1. Remove the 24 V DC voltage supply to terminal 37 by the interrupt device while the motor is driven by the AutomationDrive FC 302 (i.e. mains
supply is not interrupted). The test step is passed if the motor reacts with a coast and the mechanical brake (if connected) is activated, and if
an LCP is mounted, the alarm "Safe Stop [A68]" is displayed.
2. 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) remains activated.
3. 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. Step 1.4: 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 1.1, 1.2, 1.3 and 1.4 are passed.
Case 2: Automatic Restart of Safe Stop is wanted and allowed (i.e. Safe Stop only where par. 5-19
or combined Safe Stop and MCB112 where par. 5-19
1. Remove the 24 V DC voltage supply to terminal 37 by the interrupt device while the motor is driven by the AutomationDrive FC 302 (i.e. mains
supply is not interrupted). The test step is passed if the motor reacts with a coast and the mechanical brake (if connected) is activated, and if
an LCP is mounted, the warning "Safe Stop [W68]" is displayed.
2. 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) remains activated.
3. Reapply 24 V DC to terminal 37.
The test step is passed if the motor becomes operational again. The commissioning test is passed if all three test steps 2.1, 2.2, and 2.3 are passed.
NB!
The Safe Stop function of AutomationDrive FC 302 can be used for asynchronous and synchronous motors. It may happen that two
faults occur in the frequency converter's power semiconductor. When using synchronous motors this may cause a residual rotation.
The rotation can be calculated to Angle=360/(Number of Poles). The application using synchronous motors must take this into con-
sideration and ensure that this is not a safety critical issue. This situation is not relevant for asynchronous motors.
NB!
In order to use the Safe Stop functionality in conformance with the requirements of EN-954-1 Category 3, a number of conditions must
be fulfilled by the installation of Safe Stop. Please see section
NB!
The frequency converter does not provide a safety-related protection against unintended or malicious voltage supply to terminal 37
and subsequent reset. Provide this protection via the interrupt device, at the application level, or organisational level.
For more information - see section
Terminal 37 Safe Stop
Terminal 37 Safe Stop
is set to [7] or [8]):
Safe Stop Installation
Safe Stop Installation
.
MG.33.BC.02 - VLT ® is a registered Danfoss trademark
3 Introduction to AutomationDrive FC 300
Terminal 37 Safe Stop
is set to default value
is set to [6] or [9]):
Terminal 37 Safe Stop
for further information.
3
is set to [3],
57