Siemens 353 User Manual page 234

Model Designation and Specifications
Millivolt Overvoltage
Case Rear Terminals
45, 46, 47, or 48 to
station common
Analog Input: (1)
Input Range ...................................................0-5 Vdc (standard calibration 1-5 Vdc)
Zero.................................................0-1 Vdc
Span ................................................4-5 Vdc
Type ........................................................Single ended
Accuracy ......................................................0.10 %
Resolution ....................................................0.024 %
Software Output Type ...................................Analog [configurable (default 0.0 - 100.0)]
Normal Mode Rejection ................................>50dB @ 60Hz.
Input Impedance............................................>1 megohm
Maximum Continuous Input .........................+/-30 Vdc
Analog Output: (1)
Standard Calibration......................................4-20 mAdc
Zero.................................................4 mAdc +/- trim
Span ................................................16 mAdc +/- trim
Accuracy ......................................................0.10 %
Resolution ....................................................0.003 %
Software Input Type......................................Analog [configurable (default 0.0 - 100.0)]
Current Range Limits ....................................2.4 to 21.6 mA dc
Signal Reference ...........................................Neg. (-) output tied to station common
Output Load ..................................................800 Ohms
Overvoltage Protection..................................30 Vdc
Digital Input: (1)
Logic "1" Range............................................15-30 Vdc
Logic "0" Range............................................0-1 Vdc
Overvoltage ...................................................+/-30 Vdc
Minimum Required ON Time .......................>Scan Time
Software Output Type ...................................Digital
Isolation.........................................................100 Vdc
Universal Digital Inputs: (2)
Logic "1" Range............................................4-30 Vdc
Input Current .................................................<7 mA @ 30 V
Logic "0" Range............................................0-1 Vdc
Overvoltage ...................................................+/-30 Vdc
Frequency Range...........................................0 to 25,000 Hz.
Accuracy .......................................................0.03 % of reading
Minimum Operating Frequency ....................0.05 Hz.
Pulse Width ...................................................20 μsec (minimum)
Signal Types..................................................Sine Square, Pulse, Triangle, or Contact Closure
13-8
Case Rear Terminals
AINU1
46 to 47
45 to 47
48 to 47
49, 50, 51, or 52 to
station common
AINU2
50 to 51
49 to 51
52 to 51
(contacts require external power)
Maximum
+/- 30 Vdc
+5/-0.7 Vdc
+/- 30 Vdc
UM353-1B
April 2012