FAULT
Message
Possible cause
Action
HW CT B Fail
(F43)
1. Test current loop is broken
2. CTP4 is defective
3. Detection circuit malfunction
HW CT C Fail
(F44)
1. Test current loop is broken
2. CTP5 is defective
3. Detection circuit malfunction
1. Large Grid harmonics
2. Switching device is defective
3. Detection circuit malfunction
1. Check the utility waveform. Grid connection
of inverter need to be far away from
non-linear load if necessary
2. Check all switching devices in inverter
stage
3. Contact our customer service for
technical support
HW AC OCR
(F45)
One or more DC relays are
abnormal
Please contact our customer service for
technical support
HW DC RLY
(F76)
DC Cur. High
(F60, F61,
F70, F71)
1. Switching device in boost
is defective
2. Driver for boost is defective
3. Input current detection
circuit malfunction
1. Check all switching device in boost
2. Check the driver circuit for boost inside
the inverter
3. Check input current detection circuit
Contact our customer service for
technical support
Contact our customer service for
technical support
AFCI Circuit
Fail
(F58)
1. AFCI is not installed.
2. AFCI self-test is fail.
Check the AFCI detection circuit board for
making sure it is conneted correctly
HW ZC Fail
(F50)
The detection circuit for
synchronal signal malfunction
Check the detection circuit for synchronal
signal inside the inverter
AFCI Fault
(F59)
The inverter detects Arcing
occurs.
Check cables for replacement
85
Error message and Trouble Shooting
Summary of Contents for M88 Series
Page 2: ......
Page 29: ...Figure 3 16 AC gland assembling for M88H_122 Torque 0 8 N m to fix the screw 29 Installation ...
Page 96: ......
Page 97: ...M88H 操作手冊 三相併網型變流器 The power behind competitiveness www deltaww com English 1 97 繁體中文 ...
Page 117: ...要使用遮蔽板 請參考圖3 9的安裝方式 鎖附扭力45 kgf cm 圖3 9 遮蔽板的安裝方法 117 安裝 ...
Page 124: ...圖3 16 M88H_122交流固定頭的組裝方式 Torque 0 8 N m to fix the screw 安裝 124 ...
Page 163: ...圖5 5 AC DC SPD 損壞時的告警 圖5 6 拔起連接線並移除螺絲 AC SPD DC SPD 163 維護 ...
Page 169: ...圖5 14 拆卸功率模組風扇 僅以單側為例 組裝所需的螺釘扭矩 8 kgf cm 0 8N m 169 維護 ...
Page 170: ...圖5 15 濾網拆卸方向 圖5 15為濾網位置 170 維護 ...
Page 174: ...7 卸下8顆螺絲並用手抓住功率模組使其與配線箱分開 8 確定密封蓋有蓋上 圖5 18 拆下8顆螺絲後 將配線箱與功率模組分離 174 維護 ...
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Page 192: ...Version 04201204 ...