Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 30)

YASKAWA TOEP YAIZ1D01A Z1000U Matrix Bypass Quick Start Procedure
Z1000U Bypass
Quick Start Procedure
Page 30
of 37
Problem/Symptom Solution
AL02 Fault in HOA Keypad - BAS interlock Open Bypass Control Board terminal block TB2-3 to 10 is open.
Close contact TB2-3 to 10.
Problem/Symptom Solution
FB01 Fault in HOA Keypad – Run Enable/Safety Fault Bypass Control Board terminal block TB2-2 to 10 is open.
Close contact TB2-2 to 10.
Problem/Symptom Solution
Drive Will Not accelerate the motor to speed.
U1-01 on HOA keypad indicates 0.00 Hz.
The drive is not receiving a frequency reference.
If the desired reference source is ANALOG: Verify Z1-07 = 1 (Speed
Reference Select is set to Analog Input) and verify analog signals at
terminals.
0 ~ 10 Vdc 4 ~ 20 mA
+ -
E(G)
or
TB5
Cable
Shield
+ -
E(G)
or
TB5
Cable
Shield
+V AC A1 A2 A3 FM AM AC +V AC A1 A2 A3 FM AM AC
Potentiometer 2kΩ
+V AC A1 A2 A3 FM AM AC
TB3 Typical Analog Frequency Reference Input Connections (Choose one)
If the desired reference source is DIGITAL: Verify Z1-07 = 0 (Speed
Reference Select set to Operator) and Z1-09 = Fref (HAND Mode Drive
Speed Reference) is a non-zero value. Refer to the Bypass Technical
Manual for other reference sources, such as serial communications or
PID.

Troubleshooting
12
STEP
11.3 This section provides information to assist in solving common problems that may
occur during test run operation.