LS G100 Variable Speed Drive User Manual

June 12, 2024
LS

LS G100 Variable Speed Drive

Product Information

The LS G100 is a frequency converter that is used in conjunction with an Air Handling Unit (AHU). This manual focuses on the control and communication circuits of the LS G100. The installation of the frequency converter and mains and motor cables should be done according to the LS G100 Manual. The manual provides a list of parameters and their corresponding values for configuring the LS G100. These parameters include ramp-up time, ramp-down time, maximum frequency, U/f ratio, load type, overload protection, number of motor poles, rated slip, rated current, idle run current, and P5 input function. There are different configurations provided in the manual, including local control using the integrated control panel and remote control with three speeds. For each configuration, additional parameters are specified to set the start/stop source, frequency source, and constant speeds. The manual also includes information on exhaust units with VTS control systems and AHUs with VTS control type uPC3. Parameters for these configurations are provided to set the start/stop source, frequency source, address, communication protocol, communication speed, and communication parameters.

Product Usage Instructions

For all configurations, set the common parameter list:

Parameter Code Value Comments
Ramp up time ACC 45 Recommended 45 s.
Ramp down time dEC 45 Recommended 45 s.
Maximum frequency dr-20 100
Rated frequency dr-18 *
U/f ratio Ad-01 1 Square characteristic
Load type Pr-04 0 Light / fan duty
Overload protection Pr-40 2 Active
Number of motor poles bA-11 * 2-12
Rated slip bA-12 **
Rated current bA-13 *
Idle run current bA-14 **
P5 input function IN-69 4 Limit switch

Configurations without VTS controls

Local control using the integrated control panel:

Set additional parameters:

Parameter Code Value
Start/stop source drY 0
Frequency source Frq 0

Use the RUN and STOP/RST buttons on the integrated control panel to control the drive. Use the buttons or potentiometer to set the frequency.

2.2 Remote control with three speeds:

Set additional parameters:

Parameter Code Value
Start/stop source drv 0
Frequency source Frq 0
Constant speed 1 St1 *
Constant speed 2 St2 *
Constant speed 3 St3 *

Use the P1/P3/P4/P5 inputs to set the desired drive function (1=on, 0=off). The corresponding input values are: 0000 = STOP, 1100 = START, 1ST SPEED, 1110 = START, 2ND SPEED, 1111 = START, 3RD SPEED.

Exhaust unit with VTS control system:

Set additional parameters:

Parameter Code Value
Start/stop source drv 1
Frequency source Frq 5
Constant speed 1 St1 *
Constant speed 2 St2 *
Constant speed 3 St3 *

Use the P1/P3/P4/P5 inputs to set the desired drive function (1=on, 0=off). The corresponding input values are: 0000 = STOP, 1100 = START, 1ST SPEED, 1110 = START, 2ND SPEED, 1111 = START, 3RD SPEED.

AHU with VTS controls type uPC3:

To allow control of the G100 frequency drivers, set the VFD type to G100 in uPC3 settings (HMI Advanced mask I03).

Set additional parameters:

Parameter Code Value
Start/stop source drv 3
Frequency source Frq 6
Address CM-01 2
Comm. protocol CM-02 3
Comm. speed CM-03 5
Comm. parameters CM-04 7

Use Modbus RS-485 as the communication protocol with a speed of 9600 bps and 8N1 parameters. To restore G100 to default settings, set dr-93 = 1 and switch off the power supply. v1.01 (08.2023)

THE FOLLOWING MANUAL ASSUMES GOOD KNOWLEDGE OF TECHNICAL DOCUMENTATION INCLUDED WITH THE AIR HANDLING UNIT (AHU). THIS MANUAL CONSIDERS ONLY THE CONTROL AND COMMUNICATION CIRCUITS. THE INSTALLATION OF THE FREQUENCY CONVERTER AND THE INSTALLATION OF MAINS AND MOTOR CABLES SHOULD BE DONE ACCORDING TO THE LS G100 MANUAL.

PART LIST

FOR ALL CONFIGURATIONS SET THE COMMON PARAMETER LIST

Parameter Code Value Comments
Ramp up time ACC 45 Recommended 45 s.
Ramp down time dEC 45 Recommended 45 s.
Maximum frequency dr-20 100
Rated frequency dr-18 *
U/f ratio Ad-01 1 Square characteristic
Load type Pr-04 0 Light / fan duty
Overload protecion Pr-40 2 Active
Number of motor poles bA-11 * 2-12
Rated slip bA-12 **
Rated current bA-13 *
Idle run current bA-14 **
P5 input function IN-69 4 Limit switch

as per motor data parameters to be calculated

  • rated slip = (1 – number of motor poles rated speed / 6000) 50 Hz
  • idle run current = 0,3 * rated current

CONFIGURATIONS WITHOUT VTS CONTROLS

Local control using the integrated control panel Set additional parameters:

Parameter Code Value Comments
Start / stop source drv 0 Keypad
Frequency source Frq 0 Potentiometer

Use the RUN and STOP/RST buttons to control the drive Use buttons / potentiometer to set frequency

Remote control with three speeds
Set additional parameters:

Parameter Code Value Comments
Start / stop source drv 1 Programmable inputs
Frequency source Frq 4 Constant speeds
Constant speed 1 St1 * 0-100 Hz
Constant speed 1 St2 * 0-100 Hz
Constant speed 1 St3 * 0-100 Hz

0000 = STOP

1100 = START, 1ST SPEED
1110 = START, 2ND SPEED
1111 = START, 3RD SPEED

EXHAUST UNIT WITH VTS CONTROL SYSTEM
Set additional parameters:

Parameter Code Value Comments
Start / stop source drv 1 Programmable inputs
Frequency source Frq 5 Constant speeds
Constant speed 1 St1 * 0-100 Hz
Constant speed 1 St2 * 0-100 Hz
Constant speed 1 St3 * 0-100 Hz

as per user preferences Use P1/P3/P4/P5 inputs to set desired drive function (1=on,0=off)

0000 = STOP

1100 = START, 1ST SPEED
1110 = START, 2ND SPEED
1111 = START, 3RD SPEED

AHU WITH VTS CONTROLS TYPE uPC3

NOTE! To allow control of the G100 frequency drivers, set VFD type to G100 in uPC3 settings (HMI Advanced mask I03).
Set additional parameters:

Parameter Code Value Comments
Start / stop source drv 3 Modbus RS-485
Frequency source Frq 6 Modbus RS-485

Address

|

CM-01

| 2| Supply 1
3| Exhaust 1
5| Supply 2/ redundant
7| Supply 3
9| Supply 4
6| Exhaust 2 / redundant
8| Exhaust 3
10| Exhaust 4
Comm. protocol| CM-02| 0| Modbus RS-485
Comm. speed| CM-03| 3| 9600 bps
Comm. parameters| CM-04| 0| 8N1

NOTE! To restore G100 to default settings set dr-93 = 1 and switch off the power supply.

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