Control unit 81
AC500 module AI523 #1 (A510)
Signal/parameter name Optional Interface type I/O terminal
M1 DC CURRENT MEASUREMENT Analog input ±4 V DC / ±10 V DC AI0
M1 DC SECTION HUMIDITY Analog input 0…20 mA /
4…20 mA
AI1
M1 AC SECTION HUMIDITY Analog input 4…20 mA AI2
M1 LCL SECTION TEMP. Analog input PT100 AI3
M1 AC SECTION TEMP. Analog input PT100 AI4
M1 DC SECTION TEMP. Analog input PT100 AI5
LCL AIR CHANNEL TEMP. Analog input PT100 AI6
MAIN AIR CHANNEL TEMP. Analog input PT100 AI7
M2 DC CURRENT MEASUREMENT Analog input ±4 V DC / ±10 V DC AI8
M2 DC SECTION HUMIDITY Analog input 4…20 mA AI9
M2 AC SECTION HUMIDITY Analog input 4…20 mA AI10
M2 LCL SECTION TEMP. Analog input PT100 AI11
M2 AC SECTION TEMP. Analog input PT100 AI12
M2 DC SECTION TEMP. Analog input PT100 AI13
SPARE AI2 (MV TRANSFORMER AI1) X Analog input ±4 V DC / PT100 AI14
SPARE AI3 (MV TRANSFORMER AI2) X Analog input ±4 V DC / PT100 AI15
AC500 module AI523 #2 (A511)
Signal / parameter name Optional Interface type I/O terminal
M1 DC INPUT CURRENT 1 X Analog input ±4 V DC / ±10 V DC AI0
M1 DC INPUT CURRENT 2 X Analog input ±4 V DC / ±10 V DC AI1
M1 DC INPUT CURRENT 3 X Analog input ±4 V DC / ±10 V DC AI2
M1 DC INPUT CURRENT 4 X Analog input ±4 V DC / ±10 V DC AI3
M1 DC INPUT CURRENT 5 X Analog input ±4 V DC / ±10 V DC AI4
M1 DC INPUT CURRENT 6 X Analog input ±4 V DC / ±10 V DC AI5
M1 DC INPUT CURRENT 7 X Analog input ±4 V DC / ±10 V DC AI6
M1 DC INPUT CURRENT 8 X Analog input ±4 V DC / ±10 V DC AI7
M2 DC INPUT CURRENT 1 X Analog input ±4 V DC / ±10 V DC AI8
M2 DC INPUT CURRENT 2 X Analog input ±4 V DC / ±10 V DC AI9
M2 DC INPUT CURRENT 3 X Analog input ±4 V DC / ±10 V DC AI10
M2 DC INPUT CURRENT 4 X Analog input ±4 V DC / ±10 V DC AI11
M2 DC INPUT CURRENT 5 X Analog input ±4 V DC / ±10 V DC AI12
M2 DC INPUT CURRENT 6 X Analog input ±4 V DC / ±10 V DC AI13
M2 DC INPUT CURRENT 7 X Analog input ±4 V DC / ±10 V DC AI14
M2 DC INPUT CURRENT 8 X Analog input ±4 V DC / ±10 V DC AI15
AC500 module AI561 #1 (A520)
Signal/parameter name Optional Interface type I/O terminal
M1 DC INPUT CURRENT 9 X Analog input ±4 V DC / ±5 V DC AI0
M1 DC INPUT CURRENT 10 X Analog input ±4 V DC / ±5 V DC AI1
M1 DC INPUT CURRENT 11 X Analog input ±4 V DC / ±5 V DC AI2
M1 DC INPUT CURRENT 12 X Analog input ±4 V DC / ±5 V DC AI3