Zapi COMBI AC0, Руководство пользователя

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Page - 74/79 AF6ZP0AL - COMBIAC0 & ACE0 - User Manual
B) If the fault is present when the controller drives the outputs, the problem
is located in the harness and in the coils.
19) “EV1/5 DRIVER SHORTED”
Cause:
Electrovalve EV1 or EV2 driver is shorted.
Troubleshooting:
Check if there is a short or a low impedence between the negative of one of
those coils and –BATT. Otherwise the driver circuit is damaged and the
controller must be replaced.
20) “EV2 DRIVER SHORTED”
Cause:
Electrovalve EV2 driver is shorted.
Troubleshooting:
Check if there is a short or a low impedance between the negative of this coil
and –BATT. This warning occurs also if the external load is not present and
the parameter EV2 in the “Set Options” menu is set “PRESENT”, in this case
the warning disappears setting the EV2 parameter “ABSENT”. Otherwise the
driver circuit is damaged and the controller must be replaced.
21) “EV3 DRIVER SHORTED”
Cause:
Electrovalve EV3 driver is shorted.
Troubleshooting:
Check if there is a short or a low impedance between the negative of this coil
and –BATT. This warning occurs also if the external load is not present and
the parameter EV3 in the “Set Options” menu is set “PRESENT”, in this case
the warning disappears setting the EV3 parameter “ABSENT”. Otherwise the
driver circuit is damaged and the controller must be replaced.
22) “EV4 DRIVER SHORTED”
Cause:
Electrovalve EV4 driver is shorted.
Troubleshooting:
Check if there is a short or a low impedance between the negative of this coil
and –BATT. This warning occurs also if the external load is not present and
the parameter EV4 in the “Set Options” menu is set “PRESENT”, in this case
the warning disappears setting the EV4 parameter “ABSENT”. Otherwise the
driver circuit is damaged and the controller must be replaced.
23) “VALVE CONT DRIVER”
Cause:
One or more on/off valve drivers is not able to drive the load (cannot close).
Troubleshooting:
The device or its driving circuit is damaged, replace the controller.
24) “EVP DRIVER KO”
Cause:
The EVP valve driver is not able to drive the load (cannot close).
Troubleshooting:
The device or its driving circuit is damaged, replace the controller.
25) “EVP2 DRIVER KO”
Cause: