JUMO 709062 TYA 202 - Three-Phase Power Controller Operating Manual - Manual (Page 103)

2012-12-31/00561073 [SCR power switch TYA202] 101
9 What to do, if ...
What is happening? Cause / remedy Information
Green Power LED is
flashing - Display switch-off active
h Press any key
v Chapter 5.1.1
"Device data"
Power controller is not
producing power
even though the green
Power LED
is lit and a setpoint value
has been set - Parameters have been changed in the
configuration level but not completed
h Leave the configuration level by pressing
EXIT and wait for a restart
-
- Wire break at the analog input or incor-
rect analog input wiring
v Chapter 3.3
"Connection dia-
gram"
- Setpoint value configuration incorrectly
configured (e.g. set via interface).
v Chapter 5.1.4
"Setpoint value
configuration"
- Input for firing-pulse inhibit active
A padlock symbol is shown in the info line
as the operating mode
Undo connection between screw terminal 7
and 8 at terminal X2_2
v Chapter 4.1.2
"Displaying mea-
sured values"
- Load break
h Check load and load connections
v Chapter 8 "Fault
messages and
alarms"
Fuse LED is lit - Semi-conductor fuse defective due to
short circuit in power section
h Remedy short circuit in the load or load
circuit
h Fit a new semi-conductor fuse
v Chapter 8.2 "Re-
placing a defec-
tive semi-conduc-
tor fuse"
Power controller is pro-
ducing power even
though no setpoint value
(output level) is specified
by the controller - Configuration problem:
Controller output signal set to 4 to 20 mA
and analog input current on power con-
troller set to 0 to 20 mA.
h Check configuration and set same stan-
dard signals at the controller and power
controller
v Chapter 5.1.3
"Analog inputs"
v Chapter 5.1.4
"Setpoint value
configuration"
- Power controller in manual mode
h Exit manual mode by pressing EXIT
v Chapter 6.2
"Manual mode"
- Base load default value set
h Check settings for base load default val-
ue
v See "Base load"
on page 57
- SCR short circuit
v Chapter 8 "Fault
messages and
alarms"