13.3 Inputs and outputs
Signal reference
All voltages refer to signal ground (GND). All currents
return to signal ground.
Absolute maximum voltage and current limits
Exceeding the following electrical limits may result in
severely reduced operating reliability and motor life.
Relay 1:
• Maximum contact load: 250 VAC, 2 A or 30 VDC,
2 A.
Relay 2:
• Maximum contact load: 30 VDC, 2 A.
GENI terminals: -5.5 to +9.0 VDC or less than 25
mADC.
Other input and output terminals: -0.5 to +26 VDC or
less than 15 mADC.
Digital inputs
Internal pull-up current greater than 10 mA at V
i
equal
to 0 VDC.
Internal pull-up to 5 VDC. Currentless for V
i
greater
than 5 VDC.
Input activated level: V
i
less than 1.5 VDC.
Input deactivated level: V
i
from 3.0 VDC to 24 VDC.
Hysteresis: No.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
Safe Torque Off (STO) terminals
S24:
24 V output voltage. Only for use with ST1 and ST2
inputs.
• Output voltage: 24 V -5 % to +5 %
• Maximum current: 50 mADC
• Overload protection: Yes.
ST1 and ST2:
• STO activated: V
in
lower than 1.25 V
• STO deactivated: V
in
greater than 21.6 V and
lower than 25 V
• Input current greater than 10 mA at V
in
equal to
24 V.
When the internal voltage source (connection S24) is
used, the input voltage for ST1 and ST2 is within
accepted limits.
When an external voltage source is used to drive the
STO inputs, the following conditions must be met:
In operational state, the input voltage of ST1 and ST2
with reference to GND must be within:
• V
min
: 21.6 V
• V
max
: 25.0 V.
In the safe state, the input voltage of ST1 and ST2
with reference to GND must be as follows:
• V
max
: 1.25 V.
In the operating state, the current flow into ST1 and
ST2 must be within:
• Minimum contact current: 10 mA
• Maximum contact current: 25 mA.
Input source rating: SELV
Bus input (Ethernet)
Protocols TC/IP GENI, GDP.
Cable type, Standard CAT5, CAT5e or CAT6.
Open-collector digital outputs (OC)
Current-sinking capability: 75 mADC, no current
sourcing.
Load types: Resistive and/or inductive.
Low-state output voltage at 75 mADC: Maximum 1.2
VDC.
Low-state output voltage at 10 mADC: Maximum 0.6
VDC.
Overcurrent protection: Yes.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
Analog inputs (AI)
Voltage signal ranges:
• 0.5 - 3.5 VDC, AL AU
• 0-5 VDC, AU
• 0-10 VDC, AU.
Voltage signal:
• Ri greater than 100 kΩ at 25 °C.
Leak currents may occur at high operating
temperatures. Keep the source impedance low.
Current signal ranges:
• 0-20 mADC, AU
• 4-20 mADC, AL AU.
Current signal: Ri is equal to 292 Ω.
Current overload protection: Yes. Change to voltage
signal.
Measurement tolerance: +/- 2 % of full scale.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m, excluding
potentiometer.
Potentiometer connected to +5 V, GND, any AI: Use
maximum 10 kΩ.
Maximum cable length: 100 m.
Analog output (AO)
Current sourcing capability only.
Voltage signal:
• Range: 0-10 VDC
• Minimum load between AO and GND: 1 kΩ
85
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