Controller functions
Version 1
RES-430
Page 63
10.22 Fault areas and causes
The table below explains the possible fault causes.
Fault area
Explanation
Possible causes
Load circuit interrupted
- Wire break, heatsealing band break
- Contacting to heatsealing band defective
Primary circuit interrupted
- Wire break, triac in controller defective
- Primary winding of impulse transformer interrupted
Secondary circuit interrupted
- Wire break
- Secondary winding of impulse transformer interrupted
Voltage measurement signal
missing, internal controller fault
- Hardware fault (replace controller)
Partial short-circuit (delta R)
- Heatsealing band partially bypassed by conducting part
(clamp, opposite heatsealing bar etc.)
Parallel circuit interrupted
- Wire break, heatsealing band break
- Contacting to heatsealing band defective
Total short-circuit
- Heatsealing band installed incorrectly, insulation at heat-
sealing bar ends missing or incorrectly installed
- Conducting part bypasses heatsealing band completely
Controller voltage measurement
signal outside permissible range
- Check impulse transformer specification, heed information
in ROPEX Application Report
Controller current measurement
signal outside permissible range
- Check impulse transformer specification, heed information
in ROPEX Application Report
Internal controller fault
- Hardware fault (replace controller)
Temperaturregler
HARDWARE
5
6
4
1
3
9
9
2
2
8
7
