Instruction manual

Cascade Controller Option
Service
parameters
■ Relay status
The display panel on the AFD allows reading
the status of the relays.
Press the [DISPLAY MODE] key. Use the [+] and [-] keys
to scroll through the list to RELAY STATUS. The relay
status readout consists of 8 binary digits. The first digit
(starting from left) indicates the status of Relay 01 which
is located in the power section of the AFD. The second
digit is Relay 02 which is located on the AFD control
card. Digits 3 - 6 indicate the four relays of the cascade
controller, relays 06, 07, 08 and 09 which are located on
the option board. Digits 7-8 are reserved for future use.
The readout can be very useful during commissioning
to see how many fixed speed or slave pumps
are in operation.
175ZA690.10
SETUP
1
RELAY STATUS
1001010010010100
1001010010010100
10010100
AUTO REMOTE RUNNING
Value:
Relay open [0]
Relay closed [1]
NOTE
For readout via serial communication,
parameter 537 must be used.
Bit 7 = Relay 01,
Bit 6 = Relay 02,
Bits 5-2 = Relays 06 - 09.
MG.60.I5.22 - VLT is a registered Danfoss trademark
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