Yaskawa Z1000U - Manual (Page 246)

A.2 Drive Specifications
Note: 1. Perform rotational Auto-Tuning to obtain the performance specifications given below.
2. For optimum performance life of the drive, install the drive in an environment that meets the required specifications.
Item Specification
Control
Character-
istics
Control Method
The following control methods can be set using drive parameters:
• V/f Control (V/f)
• Open Loop Vector Control for PM (OLV/PM)
Frequency Control Range 0.01 to 400 Hz
Frequency Accuracy
(Temperature Fluctuation)
Digital input: within ±0.01% of the max output frequency (-10 to +40 °C)
Analog input: within ±0.1% of the max output frequency (25 °C ±10 °C)
Frequency Setting Resolution Digital inputs: 0.01 Hz
Analog inputs: 1/2048 of the maximum output frequency setting (11 bit plus sign)
Output Frequency Resolution 0.001 Hz
Frequency Setting Signal
Main speed frequency reference: DC -10 to +10 V (20 kΩ), DC 0 to +10 V (20 kΩ),
4 to 20 mA (250 Ω), 0 to 20 mA (250 Ω)
Starting Torque
V/f: 150% at 3 Hz
OLV/PM: 100% at 3 Hz
<1>
Speed Control Range
V/f: 1:40
OLV/PM: 1:20
Speed Control Accuracy
V/f: ±0.2 to 3% (25 °C ±1 0°C)
OLV/PM: ±0.2% (25 °C ±10 °C)
<2>
Speed Response OLV/PM: 10 Hz (25 °C ±10 °C)
Accel/Decel Time 0.0 to 6000.0 s (4 selectable combinations of independent acceleration and deceleration settings)
Braking Torque Same value as overload tolerance in motoring or regeneration.
V/f Characteristics User-selected programs and V/f preset patterns possible
Main Control Functions
Momentary Power Loss Ride-Thru, Speed Search, Overtorque/Undertorque Detection, 4 Step Speed
(max), Accel/Decel Switch, S-curve Accel/decel, 3-Wire Sequence, Auto-Tuning (Stationary for Line-
to-Line Resistance, Rotational for V/f Control), Cooling Fan on/off Switch, Slip Compensation, Torque
Compensation, Frequency Jump, Upper/lower Limits for Frequency Reference, DC Injection Braking
at Start and Stop, Overexcitation Braking, PID Control (with sleep function), Energy Saving Control,
APOGEE FLN Comm. (RS-422/RS-485 4.8 kbps), BACnet Comm. (RS-485 max. 76.8 kbps),
MEMOBUS/Modbus Comm. (RS-422/RS-485 max, 115.2 kbps), Metasys N2 Comm. (RS-422/RS-485
9.6 kbps), Fault Restart, Application Presets, Overexcitation Deceleration, Sequence Timer Operation,
Secondary PI Control, Bypass Operation, HOA Keypad, Dynamic Noise Control
Protection
Functions
Power Supply Regeneration Available
Motor Protection Electronic thermal overload relay
Momentary Overcurrent
Protection
Drive stops when output current reaches about 200% of the rated current
Overload Protection Drive stops after 60 s at 150% of rated output current <3>
Overvoltage Protection
200 V class: Stops when input voltage exceeds approx. 315 V
400 V class: Stops when input voltage exceeds approx. 630 V
Undervoltage Protection
200 V class: Stops when input voltage falls below approx. 150 V
400 V class: Stops when input voltage falls below approx. 300 V
Momentary Power Loss
Ride-Thru
Immediately stop after 2 ms or longer power loss <4>
Continuous operation during power loss than 2 s (standard) <5>
Heatsink Overheat Protection Thermistor
Stall Prevention Stall Prevention is available during acceleration, deceleration, and during run.
Ground Protection Electronic circuit protection <6>
Charge LED of Capacitor for
Control Power Supply
Remains lit until control power supply voltage falls below 50 V
A.2 Drive Specifications
246 YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual