Mode 5
Same as mode 1, but with absolute voltage levels and without a validation check.
P 2942[0] - POWF_VOn is used to define the power failure detection limit. P 2942[1]
- POWF_VRef is used to define the voltage setpoint. The configured values will not
be checked to see if they are valid. The user themselves will be responsible for
ensuring that the values entered make sense.
Mode 6
Same as mode 2, but with absolute voltage levels and without a validation check.
P 2942[0] - POWF_VOn is used to define the power failure detection limit. P 2942[1]
- POWF_VRef is used to define the voltage setpoint. The configured values will not
be checked to see if they are valid. The user themselves will be responsible for
ensuring that the values entered make sense.
Mode 7
Same as mode 6, but with pulse operation.
P 2942[0] - POWF_VOn is used to define the power failure detection limit. P 2942[1]
- POWF_VRef is used to define the voltage setpoint. The configured values will not
be checked to see if they are valid. The user themselves will be responsible for
ensuring that the values entered make sense.
MOOG
ID No.: CB40859-001 Date: 11/2020
MSD Servo Drive - Device Help
30
4 Power stage
4.2.1.4 Parameters
P No.
Index Name / Setting
Unit Function
2940
0
CON_PowerFail
Power failure bridging: selector
Off (0)
Function disabled
RET(1)
Function enabled. Return of power allowed if it
occurs within defined time; otherwise, trigger
error upon return
NORET(2)
Function enabled. Return of power not allowed -
> Trigger error upon return.
NOLIM(3)
Function enabled. Return of power cannot be
detected.
RETABS(5)
Same as "RET(1)", bit with absolute voltages
and without validation checks.
NORETABS(6)
Same as “NORET(2)", bit with absolute
voltages and without validation checks.
NORETABSPULSE(7)
Same as "NORETABS(6)", but with pulse
operation.
2941
CON_POWF_VCtrl
Power failure bridging
0
Kr
A/V
Power failure bridging: Gain
1
Tn
ms
Power failure bridging: Reset time
2
imax
A
Power failure bridging: Maximum (negative) q
current
3
imax_pos
A
Power failure bridging: Maximum q current
4
n_min
rpm
Power failure bridging: Minimum speed for
voltage controller
2942
CON_POWF_VLim
Voltage limit for power failure
0
POWF_Von
V
Power failure detection limit
1
POWF_VRef
V
Voltage reference value
2943
0
CON_POWF_RetTime
ms
Setting of time window in which mains power
can be restored
701
MON_ActValues
12
u_zkoff
VDC UZK undervoltage threshold
17
u_bc_on
VDC Braking chopper threshold
Table 4.7: “Power failure bridging” parameters