Minimum Hz (V/Hz); Minimum Speed (Vector) - Reliance electric GV3000/SE Instruction Manual

P.003

Minimum Hz (V/Hz)

Minimum Speed (Vector)

Parameter Range: V/Hz:
Vector: 0 RPM
Initial Setting: V/Hz:
Vector: 150 RPM
Type: Tunable (at rest or during operation)
Refer to: P.004 Maximum Speed. With Terminal strip Speed (P.008) selected, refer also to
P.009, P.010, P.011.
Description: V/Hz:
Vector: Speed in RPM achieved at minimum of selected speed reference.
The drive can operate at and maintaining zero speed. The user is responsible for ensuring safe
conditions for operating personnel by providing suitable guards, audible or visual alarms, or other
devices to indicate that the drive is operating or may operate at or near zero speed. Failure to
observe this precaution could result in severe bodily injury or loss of life.
P.004 Maximum Hz (V/Hz)
Maximum Speed (Vector)
Parameter Range: V/Hz:
Vector: 10 RPM - Value in Motor Top Speed (U.017 ) in RPM
Initial Setting: V/Hz:
Vector: 1400
Type: Tunable (at rest or during operation)
Refer to: P.028 Speed Display Scaling
H.022 Overfrequency Limit
U.017 Motor Top Speed
The user is responsible for ensuring that driven machinery, all drive-train mechanisms, and process
line material are capable of safe operation at the maximum operating speed of the drive. Overspeed
Detection in the drive determines when the drive shuts down. For Vector regulation, this is factory
set to 130% of Maximum Speed (P.004). For V/Hz regulation, this is fixed at the frequency level set
in Overfrequency Limit (H.022). Failure to observe this precaution could result in bodily injury.
Description: V/Hz: This parameter specifies the maximum allowed speed in Hz. The drive is
equipped with configurable overspeed protection at the frequency level set in
Overfrequency Limit (H.022).
Vector: This parameter specifies the maximum allowed speed in RPM. The drive is
equipped with fixed overspeed protection at 130% of Maximum Speed (P.004).
Note: When changing Maximum Speed (P.004) value, also rescale the Speed
Display Scaling (P.028) parameter to the same value so the RPM monitor mode
corresponds to maximum speed.
49'1329 e
4 - GENERAL PARAMETERS, DESCRIPTION
0.5 Hz - Value in P.004 'Maximum Frequency' (Hz)
- Value in P.004 'Maximum Speed' (RPM)
5 Hz
Output frequency achieved at minimum of selected frequency reference.
DANGER
15 Hz - Value in Overfrequency Limit (H.022) in Hz
50
WARNING
GV3000/SE
(max. 200 Hz)
4 - 5