Siemens A07903 fault code meaning
Siemens / A07903
Series: G110M, G120-CU240B-E-2
Drive: Motor speed difference
converter
Meaning: The speed difference between the setpoint (p2151) and the actual speed (r2169) has exceeded the tolerance threshold (p2163) for longer than the delay time (p2164, p2166). This alarm is output only when p2149.0 = 1. Possible causes: The load torque is greater than the torque setpoint. - The torque/current/power limit is reached during acceleration. If the limits are insufficient, the selected drive may be too small. - In torque control, the speed setpoint does not track the actual speed. - When the Vdc controller is valid. In V/f control, the activated I_max controller detects an overload. See: p2149 (Monitoring configuration)
Possible causes
Source: SINAMICS G110M P716; SINAMICS G120, Control Unit CU240B-2_CU240E-2 P744
Series: G115D
Drive: Motor speed difference
converter
Meaning: The speed difference between the setpoint (p2151) and the actual speed (r2169) has exceeded the tolerance threshold (p2163) for longer than the delay time (p2164, p2166). This alarm is output only when p2149.0 = 1. Possible causes: - The load torque is greater than the torque setpoint. - The torque/current/power limit is reached during acceleration. If the limits are insufficient, the selected drive may be too small. - In torque control, the speed setpoint does not track the actual speed. - The Vdc controller is active. In V/f control, activation of the I_max controller indicates an overload. See also: p2149 (Monitoring configuration).
Possible causes
Source: SINAMICS G115D P774
Series: G120-CU230P-2, G120C, G120D, G120P-Cabinet
Motor speed difference
converter
Meaning:
Possible causes
Source: Converter SINAMICS G120, with Control Unit CU230P-2 P495; Converter SINAMICS G120C P406; Converter SINAMICS G120D, with Control Unit CU250D-2 P330; SINAMICS G120P Cabinet P512
Series: G120-CU250S-2
Drive: Motor speed difference
converter
Meaning: The speed difference between the two setpoints (p2151, p2154) and the actual speed (r2169) has exceeded the tolerance threshold (p2163) for longer than the delay time (p2164, p2166). This alarm is output only when p2149.0 = 1. Possible causes: - The load torque is greater than the torque setpoint. - The torque/current/power limit is reached during acceleration. If the limits are insufficient, the selected drive may be too small. - In torque control, the speed setpoint does not track the actual speed. - When the Vdc controller is valid. In V/f control, the Imax controller detects an overload. See: p2149 (Monitoring configuration).
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1416
Series: G120X, G120XA
Drive: Motor speed difference
converter
Meaning: The speed difference between the setpoint (p2151) and the actual speed (r2169) has exceeded the tolerance threshold (p2163) for longer than the delay time (p2164, p2166). This alarm is output only when p2149.0 = 1. Possible causes: - The load torque is greater than the torque setpoint. - The torque/current/power limit is reached during acceleration. If the limit is insufficient, the selected drive may be too small. - The Vdc controller is active. In V/f control, activation of the I_max controller indicates an overload. See also: p2149 (monitoring configuration)
Possible causes
Source: SINAMICS G120X converter P1389; SINAMICS G120XA PN converter P1300
Series: G130-G150
"Motor
converter
Meaning:
Possible causes
Source: G150 P734
Series: G210, S220
Drive: Motor speed difference
converter
Meaning: The absolute difference between the speed setpoint (c2151) and the actual speed (r2169) has exceeded the tolerance threshold (p2163) for longer than the delay time (p2164, p2166). This alarm is output only when p2149.0 = 1. Possible causes: - The load torque is greater than the torque setpoint. - The torque/current/power limit is reached during acceleration. If the limit is insufficient, the selected drive may be too small. - In torque control, the actual speed does not track the speed setpoint. - The Vdc controller is active. - Pulse injection is active and the torque limit (p1557) subsequently takes effect. In V/f control, the I_max controller detects an overload when activated. See also: p2149 (Monitoring configuration)
Possible causes
Source: SINAMICS G210 converter P1157; SINAMICS S220 converter P2357
Series: S110
Drive: Motor speed difference
servo drive
Meaning: The speed differences between the two setpoints (p2151, p2154) and the actual speed (r2169) exceed the tolerance threshold (p2163) and the permissible values (p2164, p2166). This alarm is output only when p2149.0 = 1. Possible causes: The load torque is greater than the torque setpoint. - The torque/current/power limits are reached during acceleration. If the limits are insufficient, the selected drive may be too small. - In torque control, the speed setpoint does not track the actual speed. - The Vdc controller is active. In V/f control, the Imax controller detects an overload. See: p2149 (Supervision configuration).
Possible causes
Source: SINAMICS S110 P1051