FAULT
Message
Possible cause
Action
HW DSP
ADC2
(F16)
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Contact our customer service for
technical support
HW DSP
ADC3
(F17)
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Contact our customer service for
technical support
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Contact our customer service for
technical support
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Contact our customer service for
technical support
HW Red
ADC1
(F18)
HW Red
ADC2
(F19)
HW Eff.
(F20)
1. The calibration is incorrect
2. Current feedback circuit is
defective
1. Check the accuracy of current and power
2. Check the current feedback circuit
inside the inverter
HW
COMM1
(F23)
1. DSP is idling
2. The communication
connection is disconnected
3. The communication circuit
is malfunction
1. Contact our customer service for
technical support
2. Check the connection interface RS-485
3. Check the communication card
HW
COMM2
(F22)
1. Red. CPU is idling
2. The internal communication
connection is disconnected
Contact our customer service for
technical support
Ground Cur.
(F24)
1. PV array insulation fault
2. Large PV array capacitance
between Plus to Ground or
Minus to Ground
3. Either side of boost driver
or boost choke malfunction
4. Detection circuit malfunction
1. Check the insulation of Solar inputs
2. Check the capacitance (+ <-> GND &
- <-> GND), must < 2.5uF. Install a
external transformer if necessary
3. Contact our customer service for
technical support
83
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 ...