2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
Connect the PTC thermistor as shown below. The voltage that is obtained by dividing the input
voltage to the terminal [PTC] with a set of internal resistors is compared with the preset detection
voltage level (H27).
0V
Comparator
Resistor
27 k
Ω
DC+10V
PTC
thermistor
[11]
[PTC]
Rp
External
alarm
H27
H26
(Operation level)
H30
Communications Link Operation
H30 specifies the sources of a speed command and run command: "inverter itself" and "computers or
PLCs via the RS485 communications link or the CAN communications link", and setting means of
speed command and run command.
RS485
CAN
Link function
selection
Terminal [LE] unassigned
Terminal [LE] ON
=0
=1
y99
H30
Loader link
function
selection
Inverter
Command
selection
Command sources selectable
Command sources
Description
Inverter itself
Command sources except RS485 communications link and
CAN communications link
Speed command
:
Source specified by F01 (e.g., multistep
speed command)
Run command: Via the keypad or digital input terminals
RS485 communications link (port 1)
Via the standard RJ-45 port used for connecting keypad
RS485 communications link (port 2)
Via the terminals DX+ and DX- on the terminal blocks
CAN communications link
Via CAN communications link
2-93
Содержание Frenic lift
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