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Error no.
Error text
Error cause
M S
913
DC: U_DC>U_BC
Cause:
When stopped, the internal measured voltage at the DC-link is higher
than the engagement voltage of the brake chopper
Remedy:
Compare the displayed value
“
U_DC
”
in the
“
Brake Chopper
”
info
menu with the measured value at the DC+ and DC- terminals (measuring
range 1000 VDC, ATTENTION: High voltage). If the voltage displayed deviates
by more than 5%, there is a defect in the device. If the measured voltage is
greater than 620V, the line voltage is not compliant with the standards
Check the supply voltage between the supply phases, max. value = 440 VAC
The synchronous motor is moved away when stopped
Switch the ZAdyn off and back on
●
●
914
Rotary encoder missing
Cause:
No rotary encoder is detected when the ZAdyn is switched on
Remedy:
Check the rotary encoder connection
Check the
“
ENC_TYP
”
parameter in the
“
Rotary encoder & BC
”
menu
For further information, see the
“
Rotary encoder
”
info menu
Switch the ZAdyn off and back on
915
Cause:
No rotary encoder is detected at XENC-15 when switching on the
frequency inverter
Remedy:
Check rotary encoder connection
Reset frequency inverter
●
917
BRxx activ
Cause:
The internal transistor for the brake resistor is still activated 5.5 s after
the end of travel
Remedy:
Compare the displayed value
“
U_DC
”
in the
“
Brake Chopper
”
info
menu with the measured value at the DC+ and DC- terminals (measuring
range 1000 VDC, ATTENTION: High voltage). If the voltage displayed deviates
by more than 5%, there is a defect in the device. If the measured voltage is
greater than 620V, the line voltage is not compliant with the standards
Check the supply voltage between the supply phases, max. value = 440 VAC -
Synchronous motor is moved away when stopped
Switch the ZAdyn off and back on
●
919
ZR: BC error
Cause:
ZArec error message - No signal at the digital input
“
BC
”
Remedy:
Use the ZArec display to check for an error on the ZArec
Switch the ZAdyn off and back on
●
920
Overcurrent standstill.
Cause:
Overcurrent at standstill
Remedy:
Check the wiring of the brake chopper (if
fi
tted)
Check EMC-compatible installation (screening, etc.)
For persistent occurrence: Please contact ZIEHL-ABEGG Customer Service
931
Internal error
Cause:
Internal device error
Remedy:
Switch the ZAdyn off and back on
For persistent occurrence: Please contact ZIEHL-ABEGG Customer Service
●
935
MP: PWM on
Cause:
Internal device error
Remedy:
For persistent occurrence: Please contact ZIEHL-ABEGG Customer
Service
●
950
TD_CNT: Limit
Cause:
The maximum number of changes of direction has been reached
Remedy:
Replace the suspension means and reset the counter
One journey is possible after switching the ZAdyn off and back on
●
960
STO: Diagnostic
Cause:
The status of the STO_A and STO_B signals was different for longer
than 310 ms. The ZAdyn is the locked by internal hardware diagnostics
Remedy:
Check actuation of the STO inputs
Error can only be reset once the ZAdyn4B is switched off
●
961
STO: Hardware
Cause:
Hardware error in the STO diagnostics
Remedy:
Please contact ZIEHL-ABEGG Customer Service
●
●
970
DC: U < UDC_MIN
Cause:
The DC-link voltage has fallen below the limit value for the minimum
voltage during travel
Remedy:
There is a power failure during travel, check the voltage of the 3
phases of the power supply
Check the
“
UDC_MIN
”
parameter in the
“
Power unit
”
menu (factory setting:
450 V)
Check the mains connection (line voltage, cable cross-section, line reactor
design, mains impedance)
●
Original operating instructions
ZAdyn4B 110-180
Error diagnosis
R-TBA15_01-GB 2014 Index 005
Part.-No. 00163453-GB
145/200
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