Knowledge base Automation Systems Motion & Drives

Getting Started With F7/E7

Modified on Fri, 15 Aug, 2025 at 5:24 PM

Introduction

This tutorial is intended as a supplement to the original manuals. Use this to familiarise yourself with the products, not as a complete installation guide. Information sources: YEG-toe-S616-551-OY F7 User's Manual YEG-toe-S616-561-OY E7 User's Manual

Product Information F7 and E7 are inverter drives, with E7 being a simplified version of F7. E7 drives are suited for fan and pump controls, while F7 handles more demanding applications.

Inverter Assembly Mechanical Minimum assembly clearances: 120mm above/below, 30mm sides.

Electrical

Set tension band properly (≥75kW models)
Install brake resistance for high-load braking
Use Remote Emergency Stop circuit meeting current criteria
External web filters required (available separately). Minimize distance between filter output and inverter input. Note cumulative ground leakage current risks.
Motor cables require 90° merging for EMC. Use ferrite rings (3 leads, 2 loops) and EMC nipple grounding. Avoid routing earth leads through ferrite rings.

Control SignalF7/E7 share power/control connections (E7 has fewer control signals):

7 digital 24VDC inputs (5 configurable via H1-01-05)
4 digital relays (3 for PV). MA/MB/MC indicates errors/alarms
Analog reference: 0-10V (A1-AC) or 4-20mA (A2-AC). Potentiometer: V+ → A1 → VC
Pulse control available on F7 (RP-AC, H6-01)

Control Panel

FWD: S1 active
REV: S2 active
Seq: Digital input control
REF: Analog rate set
ALARM: Error detected
DRIVE: Operation mode
QUICK: Simple programming
Adv: Advanced programming
Verify: Changed parameters
AUTO TUNING: Motor calibration
LOCAL/REMOTE: Control toggle
MENU: Top menu
ESCAPE: Menu up
JOG: Local mode jog
FWD/REV: Direction set
RUN: Local start
STOP: Local stop
>>/RESET: Toggle/reset
ENTER: Select/set
▲/▼: Navigate/change

STOP (red) lit in standby, RUN (green) lit during operation

Mode Overview

Operating	Run/monitor only
Simple Programming	Common parameters
Advanced Programming	All parameters
Verification	Changed parameters
Auto Tuning	Motor vector calibration

Use MENU to cycle modes, ENTER to select. Blinking values are editable. Use >> to toggle fields, ESC to exit.

Parameter Settings Initialization/Privileges Reset to factory defaults: Set A1-03=2220. Access level: A1-01 (0=unlocked, 2=locked). Password: A1-05 (set via A1-04 + RESET+MENU).

Management Method Control source: b1-02 (1=digital inputs default). 2-wire (S1/S2) vs 3-wire (S1/S2/S5) set via A1-03 (2220/3330). Frequency reference: b2-01.

V/f Curve

E1-03	Type	Application	Max Freq
0-3	Constant Torque	Standard apps	50-72Hz
4-7	Variable Torque	Pumps/fans	50-60Hz
8-B	High Start Torque	Long cables/cranes	50-60Hz
C-E	High Frequency	>60Hz output	90-180Hz

Custom curve: Set E1-03=F and configure E1-04-E1-13

Key Parameters

Parameter	Description	Default
A1-02	Control Method (0=V/f, 2=Vector)	0 (F7:2)
b1-01	Reference Source (1=Analog)	1
b1-02	Operation Source (1=Digital)	1
b1-03	Stop Method (0=Ramp)	0
C1-01/02	Accel/Decel Time (s)	10.0
E1-03	V/f Curve (F=Custom)	F
E2-01	Motor Rated Current	Model-based
L2-01	Undervoltage Response	0

Error Codes Critical errors halt operation and activate alarm relay. Reset via S3-S7 (H1-01-05=14), RESET button, or power cycle.

Code	Description
oC	Over Power (>200%)
GF	Earth Fault
PUF	Fuse Failure
ou	Overvoltage (DC bus)
Uu1/2	Undervoltage (DC/control)
OH1	Heat Sink Overheat
oL1-3	Motor/Inverter Overload
EF	Remote Error
oPr/CPFxx	Control Panel/Memory Error