Diagnostics
5
© ELETTROQUADRI S.r.l.
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INSTALLATION MANUAL
Er - 18
No opening of the up (S) or down (D) contactors
Not
recoverable
Before starting, or for more than 20 seconds on arrival at the floor, the board reads 24 VDC at
input J11/2 (UD): the up (S) or down (D) contactors are still attracted.
Verify:
•
Mechanical blockage of the up (S) or down (D) contactors.
•
Outputs J8/2 (S) or J8/3 (D) are still active on the board.
•
The releveling circuit, if separate from the board (hydraulic lifts).
Er - 19
Rope lift with variable speed drive - No opening of contactors TL1 or TL2
Not
recoverable
Before starting, or for more than 20 seconds on arrival at the floor, the board reads 24 VDC at
input J11/5 (CCS): the power (TL1 or TL2) contactors are still attracted.
Verify:
•
Mechanical blockage of the power contactor (TL1 or TL2).
•
Outputs J8/2 (S) or J8/3 (D) are still active on the board.
Er - 20
Excessive time at high speed
Not
recoverable
Via reed switches UM and DM, the board detects high speed travel between consecutive floors
of more than 45 seconds (time adjustable up to 60 seconds in parameter t0).
Hydraulic: the car goes to the lowest floor.
Rope: the car remains where it is.
Verify:
•
During commissioning, check that the distance (m) between consecutive floors is greater
than that obtained by multiplying the car speed (m/s) by 45 seconds; if the result is greater,
a dummy floor must be created.
•
Operation of UM and DM reed switches.
•
Magnetic strip position.
•
What can move the car at low speed or stop it between floors with the contactors excited
(the 24 VDC at inputs J11/1 (FSC) and J11/2 (UD) remains):
▪ Lack of a phase to the hoist motor or hydraulic power pack.
▪ Rope: hoist brake not excited (but leaving the floor is still permitted).
▪ Hydraulic: high speed solenoid valve not powered.
▪ Variable speed drive: variable speed drive in error and car stopped between floors
▪ Variable speed drive: no high speed signal to the variable speed drive.
Er - 21
Excessive time at low speed
Not
recoverable
Via the UM and DM reed switches, the board detects a low speed travel time between the
start of slowdown and the destination floor in excess of 20 seconds.
Hydraulic: the car goes to the lowest floor.
Rope: the car remains where it is.
Verify:
•
Operation of UM and DM reed switches.
•
Magnetic strip position.
•
What can impede or delay arrival of the car at the floor, in the low speed travel space (PV),
with contactors excited (24 VDC to board inputs J11/1 (FSC) and J11/2 (UD) is not lacking):
▪ Rope: lack of a phase to the hoist motor.
▪ Rope, 2 speeds: hoist brake not excited at low speed.
▪ Variable speed drive: variable speed drive in error and car stopped between floors.
▪ Variable speed drive: no low speed signal to the variable speed drive.
▪ Variable speed drive: insufficient motor torque.
ELETTROQUADRI
SINCE 1983
MP3
