II F 2-10
Description of I/O signals SDCS-CON-2
Mechanical system installed in the basic unit
Terminals
Screw-type terminals for finely stranded wires up to max. 2.5 mm
2
cross-sectional area
Functionality
ð 1 tacho input
Resolution: 12 bit + sign; differential input; common-mode range ±20 V
3 ranges from 8...30...90...270 V- with n
max
ð 4 analogue inputs
Range -10...0...+10 V, 4...20 mA, 0...20 mA
All as differential inputs; R
E
= 200 kΩ; time constant of smoothing
capacitor ≤2 ms
Input 1: Resolution: 12 bit + sign.; common-mode range ±20 V
Inputs 2, 3, 4: Resolution: 11 bit + sign; common-mode range ±40 V
ï 2 outputs
+10 V, -10 V, I
A
≤ 5 mA each; sustained-short-circuit-proof
for reference potentiometer voltage supply
ï 1 analogue output
bipolar current feedback - from the power section; decoupled
IdN ⇒ ±3 V; I
A
≤ 5 mA, short-circuit-proof
ï 2 analogue outputs
Range -10...0...+10 V; I
A
≤ 5 mA
Output signal and scaling can be selected by means of the software
Resolution: 11 bit + sign
ð 1 pulse generator input
Voltage supply for 5 V/12 V/24 V pulse generators (sustained-short-
circuit-proof)
Output current with 5 V: I
A
≤ 0.25 A
12 V: I
A
≤ 0.2 A
24 V: I
A
≤ 0.2 A
Input range: 12 V/24 V: asymmetrical and differential
5 V: differential
Pulse generator as 13 mA current source: differential
Line termination (impedance 120Ω), if selected
max. input frequency ≤300 kHz
ð 8 digital inputs
The functions can be selected by means of the software
Input voltage: 0...8 V ⇒ "0 signal", 16...60 V ⇒ "1 signal"
Time constant of smoothing capacitor: 10 ms
R
E
= 15 kΩ
The signal refers to the unit casing potential
Auxiliary voltage for digital inputs: +48 V-, ≤ 50 mA, sustained-short-
circuit-proof
ï 7+1 digital outputs
The function can be selected by means of the software
7 outputs: relay driver with free-wheel diode, total current limitation
≤ 160 mA, short-circuit-proof
1 relay output - on power pack board SDCS-POW-1 (N.O. contact
element: AC: ≤250 V/ ≤3 A / DC: ≤24 V/ ≤3 A or ≤115/230 V/ ≤0.3 A)
protected by VDR component.
Description of I/O signals SDCS-IOB-2x & SDCS-IOB-3
Mechanical system always external, outside the basic unit
Terminals
Screw-clamp terminals for finely stranded wires up to max. 2.5 mm
2
cross-sectional area
Functionality of SDCS-IOB-3
ð 1 tacho input
Resolution: 12 bit + sign; differential input; common-mode range ±20 V
Range 8 V- with n
max
; if higher tacho voltages are in use the tacho
adaptation board PS 5311 is needed.
ð 4 analogue inputs
All as differential inputs; time constant of smoothing capacitor ≤2 ms
Input 1: Range -10 V/-20 mA...0...+10 V/+20 mA; 4... 20 mA unipolar;
R
E
= 200 kΩ/ 500Ω/ 500Ω; Resolution: 12 bit + sign; common-mode
range ±20 V
Inputs 2+3: Range as with input 1, in addition -1 V...0...+1 V
R
E
= 200 kΩ/ 500Ω/ 500Ω/ 20kΩ; Resolution: 11 bit + sign; common-
mode range with -1 V...0...+1 V range ±10 V, otherwise ±40 V
Input 4: Range as with input 1
R
E
= 200 kΩ/ 500Ω/ 500Ω; Resolution: 11 bit + sign; common-mode
range ±40 V
ð Error current detection in combination with analogue input 4
(sum of phase currents ≠ 0)
ï 2 outputs
+10 V, -10 V, I
A
≤ 5 mA each; sustained-short-circuit-proof
for reference potentiometer voltage supply
ï 1 analogue output
Bipolar current feedback - from the power section; decoupled
IdN ⇒ ±3 V (at gain = 1); I
A
≤ 5 mA, U
Amax
= 10 V, gain can be adjusted
by means of a potentiometer between 0.5 and 5, short-circuit-proof
ï 2 analogue outputs
Range -10...0...+10 V; I
A
≤ 5 mA; short-circuit-proof
Output signal and scaling can be selected by means of the software
Resolution: 11 bit + sign
ï Current source for PT 100 or PTC element evaluation
I
A
= 5 mA / 1.5 mA
ð 1 pulse generator input
Voltage supply, output current, input range: as with IOB1
Inputs electrically isolated from 0 V (casing earth) by means of optocou-
pler and voltage source.
Functionality of SDCS-IOB-2x
3 different designs available:
m SDCS-IOB-21 inputs for 24...48 V-; R
E
= 4.7 kΩ
m SDCS-IOB-22 inputs for 115 V AC; R
E
= 22 kΩ
m SDCS-IOB-23 inputs for 230 V AC; R
E
= 47 kΩ
Terminals
Screw-clamp terminals up to max. 4 mm
2
cross-sectional area
ð 8 digital inputs
The functions can be selected by means of the software
The signal status is indicated by an LED
all isolated by means of optocouplers
Input voltage: IOB-21:0...8 V ⇒ "0 signal", 18...60 V ⇒ "1 sig."
IOB-22:0...20 V ⇒ "0 signal", 60...130 V ⇒ "1 sig."
IOB-23:0...40 V ⇒ "0 signal", 90...250 V ⇒ "1 sig."
Filter time constant: 10 ms (channels 1...6), 2 ms (channels 7+8)
Auxiliary voltage for digital inputs: +48 V-, ≤ 50 mA, sustained- short-
circuit-proof; referenced to the unit casing potential
ï 8 digital outputs
The functions can be selected by means of the software
The signal status is indicated by an LED
6 of them potential-isolated by relay (N.O. contact element: AC: ≤250 V/
≤3 A / DC: ≤24 V/ ≤3 A or ≤115/230 V/ ≤0.3 A) , protected by VDR
component.
2 of them potential-isolated by optocoupler, protected by Zener diode
(open collector) 24 V DC external, I
A
≤ 50 mA each.
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