JUMO 709050 IPC IGBT Power Converter IPC 70A Operating Manual - Manual (Page 43)

02.08 [IGBT Power Converter 70A] 43
7 Troubleshooting
What is happening? Cause / Remedy Information
Green power LED does
not light up - Voltage supply to control section not
connected
v Chapter 4 „Electrical
connection“
IPC is not producing any
output power although
green power LED is lit
and a setpoint value set. - Voltage supply to power section not
connected
v Chapter 4.1 „Screw
connections in the
power section“
- Analog control input not connected
correctly
v Chapter 4.1.4
„Wiring of the screw
terminals“
- Switch positions for control input S 101/8
and 9 set incorrectly
v Chapter 5.5 „Control
inputs“
h Check switch for firing pulse inhibit
S 105
v Chapter 5.6 „Firing
pulse inhibit“
- Load break
- Load short circuit (current-limit LED is lit)
h Check load and load connections
IPC is not producing any
output power although
green power LED is lit, a
setpoint value is set and
the load fail LED is lit. - Load break
- Load short circuit (current-limit LED is lit
at the same time)
h Check load and load connections
- Safety cut-out in the power section
v Chapter 5.12.2
„Safety cut-out in
the power section“
IPC is not producing any
output power although
green power LED is lit, a
setpoint value is set and
the overheat LED is lit. - Overtemperature disconnection v Chapter 3.3
„Ambient
conditions“
IPC does not produce
full power, although
setpoint is set to 100% - Switch positions for control input S 101/8
and 9 set incorrectly
v Chapter 5.5 „Control
inputs“
- Control input (max. Power adjust) is not
turned clockwise to the stop
h Check adjustment
v Chapter 5.9 „Control
input adjustment
(max. Power adjust)“
- Current limiting active (when the red
current-limit LED is lit)
h Turn the „max. current adjust“ trimmer
clockwise
v Chapter 5.11
„Setting the current
limit (max. current
adjust)“
- Process-dependent power limiting active
h Check switch S 101/10
v Chapter 5.2 „Setting
switches and
jumpers“
h Check switch S 103
h Check switch S 101/7