Technical Information
Table 4
Pin N.
1
2
3
4
5
6
7
8
9
10
11
12
For RS232 communication:
13
14
For RS485 communication:
13
14
15
Note: All potentials refer to pin 15 (GND).
Agilent TwisTorr 305-ICQ & 305-IC SF User Manual
Signal characteristics and use
Signal Name
Description
+24VDC IN
Supply Voltage Input
SOFT START
Digital Input (DI) Soft Start Logic Input High Level:
START/STOP
Digital Input (DI1) Start/Stop
RFU
Digital Input (DI2),
reserved for future use
INTERLOCK
Digital Input (DI), Interlock
LOW SPEED/
Digital Input (DI); Speed
SPEED
Setting
SETTING
+24VDC
Supply Voltage Output for
OUTPUT (V+)
digital input
NORMAL/
Digital Output (DO1),
SETPOINT
Normal/Setpoint
FAULT
Digital Output (DO2), Fault
EXTERNAL
Digital Output for
FAN
Accessory (A1),
External Fan
VENT VALVE
Digital Output for Accessory
(B1), Vent Valve
ANALOG
Programmable Analog
OUTPUT
Output (AO1);
Default setting:
Rotational Speed
TX
RS232 COM PORT
RX
RS232 COM PORT
TX
RS485 COM PORT
RX
RS485 COM PORT
GND
Supply Voltage Input
Electric Rating
Nominal voltage: +24 VDC;
Min voltage: +22.8 VDC;
Max voltage: +25.2 VDC;
Max absorption 7.5 A;
Nominal Value: +24 VDC
Input range: +13 VDC to +33
VDC
Logic Input Low Level:
Nominal Value: 0 VDC
Logic Input Low Level,
Nominal Value: 0 VDC;
Input range: -33 VDC to +7
VDC, Max current: ±5mA
Nominal voltage: +24 VDC
Max current: 30 mA
Logic Output active voltage,
Nominal value: +24 VDC;
Max current: 50 mA
Logic Output active voltage,
Nominal value: +24 VDC;
Max current: 200 mA
Analog Output 0-10 VDC;
Max current: 1 mA
Standard RS232, 8 bit no parity bit,
n.1 start bit, n.1..2 stop bit
Standard RS485, 8 bit no parity bit,
n.1 start bit, n.1..2 stop bit
Note
245