44
LR
HR
The signal of pump start
( INPUT )
The revolution of Motor
The signal of ready check
( OUTPUT )
The signal of start check
( OUTPUT )
The signal is issued within one second after receiving
the signal of pump start when the pump starts
normally.
This signal is issued when the motor is rotating at
the specified revolution and the temperature of each
part
This signal is issued at the same time with the
signal of start check.
Case 2. 『SET-UP 1』⇒『start up mode』⇒『2』
2.4.3 Communication
Used when operating the pump using a personal computer or checking the operation
history. Contact your local ULVAC service center for the communication functions.
Pin assignment Communication specifications
No. Item Signal format RS-232C/RS485
1 FG (Frame GND)
Baud rate 9600 bps
2 RS-232C RxD Bit
Configuration
Start 1 bit
3 RS-232C TxD Data 8 bits
4 RS-485 B(-) Parity EVN
5 GND Stop 1 bit
6 RS-485 A(+) Data
Configuration
BCD code
7 Terminator CR code
8 RS-485 Terminator
9 RS-485 Terminator
Specifications
Pump side connector D-sub 9pin female
Compatible connector D-sub 9pin male
Compatible wire size AWG #22 Use the shielded cable.
List of communication commands
：
Please refer to attached material in the end of a book for the communication
command and the connection of the communication connector.(c. Supplementation of the communication
system ).
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