Advanced Energy Thyro-S 1S H 1 Series, Manual

Page: 40 / 54

38
Should nevertheless faults or problems occur, our technical contacts are
at your service.
8.4 CHECKLIST
• LED ON lights up green -> mains voltage or supply voltage is
available
• LED ON not lights up green
· Check fusing of the power unit (built in semi-conductor fuse F1).
If the fuse is defective check load and wiring to load.
· Check synchronisation voltage on X1.1
· Check external back-up fuse
· Check control fuse (F2) 500 V 1.6 A
· With Thyro-S ...H RL 1 check 24 V (AC/DC) power supply where
applicable
• Supply available but no load current
· Check mains voltage
· Switching on signal (digital set point, X22.1 versus X22.3
≥
3)
· Check load circuit for interruptions
· Check flashing LED signals (chapter 3.3)
• Load current does not have the expected value
· Check switching on signal (digital set point) for continuous signal ON.
With optional bus module:
· Check bus switching on signal (bus set point) for continuous signal ON.
· Check all parallel load resistances for current flow.
• Load current is flowing without triggering
· Check the wiring of the power unit (in case of first activating).
In very rare cases a thyristor short circuit may have occurred.