VT-MUXA2-2-1X/V0/1A
Rexroth
R901254583
超过允许的最大电流后，切断电磁铁电流。
附加的非安全相关指令值修正功能，可防止电磁铁电流过早关断。
电磁铁回路另设不可更换的1.25 A快速熔断器，符合IEC 60127-4。
每个电磁铁回路均设冗余继电器触点。
每个电磁铁回路均设冗余电磁铁电流测量。
电磁铁回路极性反接保护。
工作电压极性反接保护。
边沿触发的复位输入。
差分输入。
指令值输出。
正常状态输出。
帽形导轨安装。
插拔式连接端子。
01 | 02 | 03 | 04 | 05 | 06 | 07 | |||
VT-MUXA | 2 | – | 2 | – | 1X | / | V0 | 1A | * |
01 | Analog module for monitoring solenoid coils | VT–MUXA |
02 | Monitoring for valves with one or two solenoids | 2 |
03 | Serial number (module type) | 2 |
04 | Component series 10 ... 19 (10 ... 19: unchanged technical data and pin assignment) | 1X |
05 | Standard version | V0 |
06 | Imax = 1.0 A | 1A |
07 | Further details in the plain text | * |
included in the scope of delivery:
two ferrite sleeves for lines between amplifier and monitoring module conducting solenoid current
Component series | 1X |
Operating voltage | Nominal value | UB | 24 VDC | |
Maximum value 1) | U(t)max | 30 V at 0 °C ≤ ϑU ≤ 40 °C | ||
Minimum value 1) | U(t)min | 18 V at 0 °C ≤ ϑU ≤ 40 °C | ||
Reverse polarity protection | yes | |||
Power consumption | P | VA | < 5 | |
Current consumption | I | A | < 0.2 | |
Fuse/short-circuit protection | 1 or 2 fuses for the solenoid currents, not exchangeable | I | 1.25 A fast-acting (SMD) | |
Display LEDs (green) | OK | Is illuminated if the self-test has been completed, the relays have operated and there is no error | ||
power | Is illuminated if the internal power supply unit works | |||
| 1) | see also derating characteristic curve on page 7 |
Command value differential input | U | 0 … +10 V or 0 … ±10 V, RE = 100 kΩ | ||
Reset input | Low | UR | 0 … 6.5 V | |
High | UR | 10 V … UB | ||
1 or 2 monitored solenoid current inputs | Admissible common-mode voltage | U | –2 V … UB | |
Reverse polarity protection | by means of diodes | |||
Admissible clock frequency of the solenoid currents | 0 … 500 Hz |
Command value output 1) | U | 0 … +10 V or 0 … ±10 V, I = 2 mA | ||
2 solenoid current outputs | I | 1.0 A (monitored to ±2 %) | ||
OK output | High = OK | UB – 3 V / 50 mA, short-circuit-proof | ||
Low = OK | < 2 V, Ri = 10 kΩ | |||
| 1) | Command value presetting at the amplifier |
Clearances and creepage distances | according to EN 50178 | ||
admissible degree of contamination | 2 according to EN 60664 | ||
Anschlussart | 16-pole terminal housing with detachable terminals | ||
Connection cross-section | A | 0.2 … 2.5 mm2 | |
Mounting type | Top hat rail TH 35-7.5 according to EN 60715 | ||
Protection class | IP 20 | ||
Dimensions (W x H x D) | see unit dimensions on page 8 | ||
Operating temperature range 1) | ϑ | °C | 0 … +50 |
Storage temperature range | ϑ | °C | -25 … +85 |
Weight | m | kg | 0.15 |
| 1) | see also derating characteristic curve on page 7 |
使用方法。
VT-MUXA2-2模块可监测一个或两个电磁铁回路，并限制电磁铁电流，防止过热。阀运行所需的电磁铁电流由另行订购的放大器提供。
放大器按电磁铁的额定电流数据调整，额定电流为1.03 A。指令值为10 V时，放大器输出电流为1.0 A。
发生故障或操作错误时，放大器可能输出超过 1.0 A 的电流。串联的 VT-MUXA2-2 监测模块会识别过流，降低指令值或切断电磁铁电流。
VT-MUXA2-2监测模块必须防护24 V电源中的电压尖峰。VT 11110电容模块可防止电压尖峰并平滑24 V供电电压。
装配不正确会造成爆炸危险！
在任何情况下都必须遵守以下规定！
本样本所列Rexroth电子装置必须安装并运行于潜在爆炸危险区域之外。
VT-MUXA2-2模块应接在放大器输出与电磁铁之间，同时接在上级控制器的指令值控制输出与放大器输入之间，参见框图。
只允许连接最大电流与 VT-MUXA2-2 监测模块的监测电流相匹配的阀用电磁铁。
注意：
VT-MUXA2-2模块属于静电敏感部件，装配时必须采取静电放电防护措施。
