Agilent Technologies TwisTorr 305-IC SF, User Manual

Page: 245 / 279

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