ABB 3AXD50000035158 - Page 54

Measuring circuit / Sensor circuit T1-T2
PTC type A (DIN/EN 44081, DIN/EN 44082)Sensor type
1Number of sensor circuits
< 750 ohmMax. total resistance of sensors connected in series,
cold state
2.83 kohm ± 1%Switch-off resistance
(relays de-energize)
Overtemperature
monitoring
1.1 kohm ± 1%Switch-on resistance
(relays energize)
< 12 ohmSwitch-off resistance
(relays de-energize)
Short-circuit detection
> 19 ohmSwitch-on resistance
(relays energize)
dynamicSwitch-off resistance
(relays de-energize)
Interrupted wire detection
not availableSwitch-on resistance
(relays energize)
configurableNon-volatile fault storage
yesTest function
2.5 V1.33 kohmMaximum voltage in sensor
circuit
3.7 V4 kohm
5.5 V∞ kohm
3.7 mAMaximum current in sensor circuit
2 × 100 m at 0.75 mm
2
Maximum sensor cable length
2 × 400 m at 2.5 mm
2
0.50%Accuracy within the rated control supply voltage
tolerance
0.01%/KAccuracy within the temperature range
on requestRepeat accuracy (constant parameters)
< 100 msReaction time of the safety function
0Hardware fault tolerance (HFT)
Control circuit S1-T2
yesManual resetControl function
adjustableAuto reset
adjustableRemote reset
5.5 VMaximum no-load voltage (S1-T2 open)
0.6 mAMax. current (S1-T2 jumpered)
2 × 100 m at 0.75 mm
2
Maximum cable length
2 × 400 m at 2.5 mm
2
Indication of operational states
"U" LED (green)Control supply voltage
"R" LED (yellow)Relay status
"F" LED (red)Fault message
Operating controls
front-face buttonTest / Reset
54 Technical data