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Instructions
Commissionning & final tests
Final Set-Up and Test
To test the set-up and ensure that the frequency
converter is running, follow these steps.
Safe Stop Commissioning Test
After installation and before first operation,
perform a commissioning test of an installation
or application making use of CD 302 Safe Stop.
Moreover, perform the test after each modifica-
tion of the installation or application, which the
CD 302 Safe Stop is part of.
The commissioning test:
1. Remove the 24 V DC voltage supply to terminal
37 by the interrupt device while the motor com-
Door contact
Safety device Cat.3
(Circuit interrupt
device, possbly with
release input)
Short-circuit protected cable
(if not inside installation cabinet)
130BA073.11
© Danfoss | DCS (CC) | 2019.04
pressor is driven by the CD 302 (i.e. mains supply
is not interrupted). The test step is passed if the
motor compressor reacts with a coast.
2. Then send Reset signal (via Bus, Digital I/O, or
[Reset] key). The test step is passed if the motor
compressor remains in the Safe Stop state.
3. Then reapply 24 V DC to terminal 37. The test
step is passed if the motor compressor remains in
the coasted state.
4. Then send Reset signal (via Bus, Digital I/O, or
[Reset] key). The test step is passed if the motor
compressor gets operational again.
5. The commissioning test is passed if all four test
steps are passed.
"Coast"
High Voltage Test
Carry out a high voltage test by short-circuiting
terminals U, V, W, L1, L2 and L3. Energize by max.
2.15 kV DC for one second between this short-cir-
cuit and the chassis.
NB: When running high voltage tests of the entire
installation, CD302 compressor Drive and com-
pressor electrical motor compressor test can be
conducted together.
Warning: when conducting an high voltage
test make sure the system is not under vacuum:
this may cause electrical motor compressor fai-
lure.
Never apply the high voltage test to the
control circuit.
FC 302
12
37
Safe
channel
5Vdc
Mains
Control
board
Inverter
M
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