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ATTENTION
The controller lock may also be set via the interfaces!
ATTENTION
The control device is to be operated only with casing.
8.3 SERVICE
The devices delivered have been tested according to the state of the art and have been produced
to a high quality standard (DIN EN ISO 9001). Still, should any faults or problems occur, our 24 hour
service hotline, Tel.: +49 (0) 2902/763-100 is available to you.
8.4 CHECKLIST
No frontside LED is on:
• for 690V devices, the power supply for the control device A70 to be provided by the customer is
missing. (Attention, maximum nominal input voltage 500V)
• check voltage at terminal X1.1 and X1.2 of the control device A70
• check semiconductor fuse and the fuses F2 and F3 on the controller card A1.
CAUTION
In any case, set the device voltageless and check if it is voltageless
Terminal X1.3 on the controller card A1 not connected.
• if the semiconductor fuse is defective, then the following parameters must be checked in case of
transformer load for the operating modes TAKT and SSSD:
phase angle of the fi rst half-wave (phase angle 1) = 60 degrees;
possibly optimize. Check for the model type 1P, 2P or 3P
Menu: Parameters/Operating mode/Number of phases controlled 1 2 3)
No load current
• RESET X5.2.12 is not jumpered for X5.1.14 (LED ON lit in red)
• supply voltage of the control device outside of the tolerable range
• controller lock X5.2.15 is not jumpered for X5.1.14 (LED PULSE LOCK is on)
• no set point is set. Using the LBA, check the total set point (effective total), or measure set point
on X5.2.10 and X5.2.11.
• set points are not cleared (STD, Local, Remote, ANA)
• parameterization of the set point inputs 20mA, 5V, 10V, does not matched to output of the
temperature controller
• parameters STA and STE of the control characteristic are wrong
• parameter for linkage of the set points is not set to ”ADD“
• parameters IEMA, UEMA, PMA are set too small
• controller parameters T
i
and K
p
are set too large.
CAUTION
Check fuses on the controller cards A1, A3, A5. In any case, set the device voltageless and check if
it is voltageless.
• Load connection by the customer is missing (only for type 1P).
Check connection on A1 terminal X1.3.
• Check synchronization voltage at the control device A70 at the terminal blocks X7.1 and X7.2.