Yaskawa AC Drive Z1000 Bypass Technical Manual Instrukcja Użytkownika Pobierz pdf (Strona 178)

Setting 7: UL3 at Speed Agree (Fault)

Undertorque detection is active only when the output speed is equal to the frequency reference (i.e., no detection during

acceleration and deceleration). The operation stops and triggers a UL3 fault.

Setting 8: UL3 at Run (Fault)

Undertorque detection works as long as a Run command is active. The operation stops and triggers a UL3 fault.

L6-02: Torque Detection Level 1

Sets the detection levels for torque detection function 1 as a percentage of the drive rated output current.

No. Name Setting Range Default

L6-02 Torque Detection Level 1 0 to 300% 15%

Note:

The torque detection level 1 (L6-02) can also be supplied by an analog input terminal set to H3-oo = 7. Here, the analog value has priority

and the setting in L6-02 is disregarded.

L6-03: Torque Detection Time 1

Determines the time required to trigger an alarm or fault after exceeding the level in L6-02.

No. Name Setting Range Default

L6-03 Torque Detection Time 1 0.0 to 10.0 s 10.0 s

L6-13: Motor Underload Protection Selection

Sets Motor Underload Protection (UL6) based on motor load and determines whether the level of L6-02 refers to fbase or

fmax.

Selects the operation of underload detection UL6. Underload is detected when the output current falls below the underload

detection level defined by L6-14 and L2-02

<1>

<1> Details on this function can be found in the standard Z1000 Programming Manual (SIEPC71061645) at

www.yaskawa.com.

No. Name Setting Range Default

L6-13 Motor Underload Protection Selection 0, 1 0

Setting 0: Fbase Motor Load Enabled

Setting 1: Fmax Base Motor Load Enabled

UL Detection Level

L6-02

(0 to 300%)

0 Fmin Fbase

1/f

Fmax

Output

Frequency

L6-14

Motor Underload

Protection at Fmin

Figure 5.50 Motor Underload Protection

L6-14: Motor Underload Protection Level at Minimum Frequency

Sets the UL6 detection level at minimum frequency by percentage of drive rated current

5.9 L: Protection Functions

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