Endress+Hauser memo-graph Version II Betriebsanleitung Seite 101

Collective relays 1 relay, changeover, 230 V / 3 A, for limit indication/power failure
Safety EN 61010-1, class I, overvoltage category II
Installation depth: approx. 211 mm incl. terminals, panel cut-out:
+1
138
Panel thickness: 2...40 mm, Fixing to DIN 43834 stainless steel
casing, weight approx. 3.5 kg, front bezel/door in die cast metal
Model/weight sintered matt chrome coating (colour similar to RAL 9006),
H x W = 144 mm x 200 mm
Installation elevation to DIN 16257: NL90 +/-30°
Front ingress protection: IP 54 (EN 60529, Cat. 2)
Rear ingress protection: IP 20 (EN 60529, Cat. 2)
Keyed screw plug-in terminal strips,
wire cross section analogue inputs/digital I/O max. 1.5 mm²
Connections Power supply/relays max. 2.5 mm² (with ferrules)
Front mounted RS 232 interface (3.5 mm Stereo plug)
Rear mounted RS 232 interface (9 pin., Sub-D, socket)
7 digital inputs:
To DIN 19240: Logic "0" equals -3...+5 V, active with logic "1"
(equals +12...+30 V, max. 25 Hz, max. 32 V, input current approx.
1.5 mA)
Selectable function per input: Control input (time synchronisation,
set up lock, text display, group selection, display switch off),
Digital I/O on impulse counter, on/off event, operation time counter, combination
power supply event + operation time counter
board Auxiliary voltage for digital input control when using potential free
contacts, approx. 24 V DC max. 150 mA short circuit protected
unstabilised
Outputs (not SELV circuits):
4 relays closing contacts, 230 V / 3 A for limit infringement
transmission can be set as opening contacts
1 open collector output (max. 100 mA / 25 V)
Either 1 or 2 digital I/O boards can be additionally plugged in.
Each of these subsitutes one universal analogue board.
Digital I/O board
One digital I/O board ontains 15 digital inputs and 6 relay outputs.
For technical data see section "Digital I/O on power supply board"
(four additional, calculated channels; can be cascaded)
mathematical combination of analogue channels, basic
mathematics functions, (+, -, *, /), constants, integration (quantity
calculation of analogue channels) and expanded mathematics
functions: log, ln, exp, abs, sqrt, quad, sin, cos, tan, asin, acos,
Mathematics
atan
package
Formula schematic:(g (y1) * a) ? (y2 * b) + c;
RS 422 alternative RS 485 (rear mounted) presettable unit
Serial interface addresses
Cable length max. 1000 m screened cable
+1
x 138 mm
g = mathematics function
y1/y2 = analogue or mathematics channels
a/b = factors
c = constant
9. Technical data
Technical data
(Continued)
Electrical safety
Housing/installation
Options
99