Regada STR 1 - Page 12

10 ST 1, STR 1
Electronic positional transmitter (EPV) - converter R/I (B3)
a) 2-wire version - without built-in power supply, or with built-in power supply
Current signal................................................................................................................................ 4 ÷ 20 mA (DC)
Power supply voltage.......................................................................................................................15 to 30 V DC
Load resistance (at version without build-in power supply).......................................max. R
L
=(U
n
-9V)/0,02A [Ω]
(U
n
- power supply voltage [V])
Load resistance (at version with build-in power supply)............................................................max. R
L
= 750 Ω
Temperature dependency................................................................................................ max. 0,020 mA / 10 K
Output signal values at limit positions:
“O“............. 20 mA (terminals 81; 82)
“Z“............... 4 mA (terminals 81; 82)
Values tolerance of output signal of EPV
“Z“ ............ +0,2 mA
“O“ ............ ±0,1 mA
b) 3-wire version - without built-in power supply, or with built-in power supply
Current signal................................................................................................................................ 0 ÷ 20 mA (DC)
Current signal................................................................................................................................ 4 ÷ 20 mA (DC)
Current signal................................................................................................................................. 0 ÷ 5 mA (DC)
Power supply voltage (at version without built-in power supply)...................................................24 V DC ±1,5%
Load resistance......................................................................................................................................max. 3 kΩ
Temperature dependency................................................................................................... max. 0,020 mA / 10 K
Output signal values at limit positions:
“O“.................. 20 mA, or 5 mA (terminals 81; 82)
“Z“.................... 0 mA, or 4 mA (terminals 81; 82)
Values tolerance of output signal of EPV and capacitive transmitter
“Z“ .............+0,2 mA
“O“............. ±0,1 mA
EPV converter linearity error..................................................................................................................... ±2,5[%]
1)
EPV converter hysteresis....................................................................................................................max. 2,5 [%]
1)
1) from rated value of transmitter referred to output values
Electronic position controller (N)
Controller software equipment:
A) Function and parameters
programmable functions:
• ..with functional buttons SW1, SW2 and LED diodes D1, D4 directly placed on controller
• ..with computer or terminal equipped with corresponding programme, using RS 232 interface.
programmable parameters:
• ..control signal
• ..response to SYS-TEST signal
• ..mirroring (ascending/descending characteristics)
• ..insensitiveness
• ..EA limit positions (only with computer and ZP2 programme)
• ..way of regulation
B) Operation states of controller
Error message from error memory: (using LED diodes and RS 232 and personal computer)
• ..control signal missing or faulty
• .. input value of current control signal under 3.5 mA
• ..existence of SYS-TEST signal
• ..activity of switches
• ..failure of feedback position transmitter
Statistic data: (using RS 232 and personal computer)
• ..number of controller operation hours
• ..frequency of relay switching in direction "opening"
• ..frequency of relay switching in direction "closing"