User manual

16
4. Function
4.1. Visualization - LEDs status
The hybrid motor starter visualizes the operating modes with four LEDs. The functions of the LEDs are
oriented towards the NAMUR recommendation NE
44.
• The general device status is displayed by a green LED (PWR).
• The activation of the drive is displayed using a yellow LED (ON).
• An internal or external error (process error: overcurrent, asymmetry, phase failure) is indicated by a red
LED (ERR).
After the control supply voltage is applied, all LEDs light up once as an LED test.
4.2. Diagnostics function
Thanks to the diagnostics functions, the hybrid motor starter is in a condition to identify several internal
errors as well as external errors (errors in the I/O).
• If an error is detected, the device is switched to a safe switch-off mode.
• All internal errors cannot be acknowledged and are saved in the device. The device then cannot be
operated.
• In the case of external errors, an error acknowledgment is required to exit the safe switch-off mode.
Explanation:
A = LED switched off / E = LED permanently lit / B = LED flashes approx. 2 Hz (50:50)
1)
Bridge between the terminals "RES" and "AUT" /
2)
No other measures necessary
Status Description LED: PWR ERR ladj ON Error acknow-
ledgement
Green Red Yellow
Off No supply voltage (control supply voltage)
present
A A A A -
Readiness
for operation
Supply voltage (control supply voltage) present E A A A -
Drive switched on E A A E
Internal error Internal device error -
Device replacement required
E E A A Not possible
External error
in activation or I/O
(maintenance
requirement,
NE44)
Bimetal function:
The motor current is greater than the nominal
motor current specification (e.g. class 10 A):
Cooling time on! (20 minutes)
E B A E Automatic
1)
"ON" flashes after 2 minutes:
A manual reset is possible.
E B A B Manual
Error when restoring the system state:
Checksum erroneous.
The thermal memory of the bimetal function is set
to the max. value.
The error must be manually acknowledged in
automatic mode.
E B B B Manual
Symmetry: The two motor currents deviate from
each other by more than 33 %.
E B A A Manual
Phase failure: Phase failure with pending control
signal
B B A E Automatic
2)
Blocking: The max. measurable motor current is
exceeded for more than 2 s.
E B A B Manual