CP : control panel, FC : frequency converter, SB : supply board, CB : cooling board, CC : control cable, LL : lid locking, BC : braking chopper,
BR : brake resistor, MR : mains reset, EC : error cause, ES : error consequence, ER : error remedy, M : measurements, ECR : error-code reset
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4.2. Description and elimination of errors
TACHO - ERROR 01
EC During centrifugation the speedometer pulses are interrupted.
ES The rotor slows down until it stops.
After the rotor stops, there is a DC braking for 30 sec.
An MR during slowing-down causes a DC braking for 3 min.
After the DC braking, the ”open the lid” release takes place.
Further cooling to NOMINAL temperature.
ER
• Speed sensor (speedometer) defective or loose contact on plug.
Measure speedometer pulses on plug X4 / SB, (pin 4 - pin 2).
• CC to CP, or CC to FC is defective.
• SB or CP or FC is defective.
M Also see at SB-X4, CP-X1 (PIN 14 and FC-S501 (PIN 8).
ECR Open the lid. Turn the rotor by hand and perform an MR while the
rotor is turning.
TACHO - ERROR 02
EC There are no speedometer pulses on the CP after startup.
ES The rotor slows down until it stops.
After the rotor stops, there is a DC braking for 30 sec.
An MR during slowing-down causes a DC braking for 3 min.
After the DC braking, the ”open the lid” release takes place.
Further cooling to NOMINAL temperature.
ER
• Startup took place without the rotor.
• Motor not connected.
• Motor is defective.
• Speed sensor (speedometer) defective, or loose contact on plug.
Measure speedometer pulses on plug X4 / SB, (pin 4 - pin 2).
• CC to CP, or CC to FC is defective.
• No release signal to FC.
• SB or CP or FC is defective.
M Also see at SB-X4, CP-X1 (PIN 14 and FC-S501 PIN 8).
ECR Open the lid. Turn the rotor by hand and perform an MR while the
rotor is turning.
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