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6F3A4768
2.3.11.2 Voltage Protection
(1) DC overvoltage
OVP,OVN
Activated when the DC voltage supply exceeds the setting value.
The operation level is automatically set to 120% of the equipment rating from CP_OV_LVL and
CS_DC_VOLT. Manual setting for $CP_OV is also possible.
(2) DC undervoltage
UVP,UVN
Activated when the DC voltage supply drops below the setting value.
The standard setting is DC undervoltage (UVP, UVN) detection level = 50.0%.
2.3.11.3 Motor Speed Protection (TMdrive-30)
(1) Overspeed
OSS
Overspeed is detected when the motor speed exceeds the preset speed.
The standard setting is $CP_OSP = 115.0%.
(2) Overfrequency
OSS_FO
Excessive output frequency is detected when the output frequency exceeds the setting value.
As the standard setting, the frequency [Hz] corresponding to 115% of the maximum frequency is set at
$CP_OSS_FO.
For operation up to 50Hz, set $CP_ISS_FO = 58 Hz.
(3) Speed detection error
SP_ERR, SP_ERR2
Activated when a speed sensor error (disconnection, etc.) is detected.
When a resolver is used as the speed sensor and when sensor-less speed control is used, SP_ERR is
activated upon error detection.
When PLG is used as the speed sensor, SP_ERR2 is activated upon error detection.
2.3.11.4 Control Circuit and Power Supply
(1) Control power supply failure
CPSF
Activated when the control power supply drops below the control power loss detection level.
The higher the setting level, the shorter the time it takes to detect control power loss.
In the standard setting, PSF = 140.0 (V) is set when restart at power failure (optional) is not provided and
160.0 V is set when restart at power failure (optional) is provided.
(2) Gate power supply failure
GDM_F
The power for the gate is supplied from the control power supply via the switching transformer on the gate
board. An error on this circuit (board) is detected.
(3) Equipment ventilation fan stop
C_FN,C_FN_T
Activated when the cooling fan for the equipment stops.
The common use is that an alarm is output with a C_FN signal and the equipment is stopped when a
C_FN_T is activated after an elapse of time specified by the TIME_CFAN timer.
The standard setting is TIME_CFAN = 10.0 (s).
(4) Equipment overheat timer
OH_T
A temperature sensor is attached to the IGBT cooling fan of the equipment. If this is activated, the
equipment stops after an elapse of time specified by the TIME_OH timer.
The standard setting is TIME_OH = 5.0 (s).
(5) Phase fuse blown
F_U,V,W
A fuse is provided for each phase to prevent damage expansion at short-circuit occurrence. A blown fuse is
detected by the microswitch.
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